Make cpu scaling more robust

Some bots, especially the Nexus 7s, seemed to occasionally fail when setting the CPU frequency. I was unable to repro this behavior, so this is a shotgun approach. We add a 5 second delay between setting and checking, checking frequency using scaling_cur_freq instead of scaling_setspeed, set the min_freq as well as max_freq, and retry up to 3 times if setting cpu frequency fails. NOTRY=true Bug: skia: Change-Id: Id4d85d8d509c9dba8e3a0e06b5992f5adadf36d2 Reviewed-on: https://skia-review.googlesource.com/78140 Commit-Queue: Kevin Lubick <kjlubick@google.com> Reviewed-by: Eric Boren <borenet@google.com>
author: Kevin Lubick <kjlubick@google.com> 2017-11-30 08:35:29 -0500
committer: Skia Commit-Bot <skia-commit-bot@chromium.org> 2017-11-30 14:13:22 +0000
commit: 1c8092ac64dc4d9fd140d7fd46fa52163fe26569 (patch)
tree: 199b0a34aadd3c993059af7a5726a0bf6d792ed4
parent: 8816b93134db2fecdfd690fd26967468f6c814b9 (diff)
29 files changed, 1390 insertions, 75 deletions
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android.json
index a36a7619b3..cc6981da1c 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android.json
@@ -642,7 +642,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "0.6"
@@ -661,6 +661,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -704,9 +705,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
index c45bce175c..53cc19dba7 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Perf-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
@@ -642,7 +642,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Pixel",
       "0.6"
@@ -661,6 +661,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -704,9 +705,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json
index 1bc6ddd83f..c8d84f331e 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json
@@ -642,7 +642,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Nexus10",
       "1.0"
@@ -661,6 +661,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -704,9 +705,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
index 45f392d5c0..dfdf9d94a5 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/Test-Android-Clang-Pixel-GPU-Adreno530-arm64-Debug-All-Android.json
@@ -642,7 +642,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Pixel",
       "1.0"
@@ -661,6 +661,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -704,9 +705,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/cpu_scale_failed.json b/infra/bots/recipe_modules/flavor/examples/full.expected/cpu_scale_failed.json
index 7d218b5c5a..894d849b7e 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/cpu_scale_failed.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/cpu_scale_failed.json
@@ -642,7 +642,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "0.6"
@@ -662,6 +662,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -705,9 +706,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
@@ -719,6 +723,191 @@
     "cmd": [
       "python",
       "-u",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "adb.1.0.35",
+      "NexusPlayer",
+      "0.6"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "Scale CPU to 0.600000 (attempt 2)",
+    "timeout": 30,
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
+      "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
+      "@@@STEP_LOG_LINE@python.inline@log = subprocess.check_output([ADB, 'root'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# check for message like 'adbd cannot run as root in production builds'@@@",
+      "@@@STEP_LOG_LINE@python.inline@if 'cannot' in log:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('adb root failed')@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@if model == 'Nexus10':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@elif model == 'Nexus7':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Nexus7 claims to support 1300000, but only really allows 1200000@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,@@@",
+      "@@@STEP_LOG_LINE@python.inline@                     860000, 1000000, 1100000, 1200000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Most devices give a list of their available frequencies.@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Check for message like '/system/bin/sh: file not found'@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if available_freqs and '/system/bin/sh' not in available_freqs:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    available_freqs = sorted(@@@",
+      "@@@STEP_LOG_LINE@python.inline@        int(i) for i in available_freqs.strip().split())@@@",
+      "@@@STEP_LOG_LINE@python.inline@  else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    raise Exception('Could not get list of available frequencies: %s' %@@@",
+      "@@@STEP_LOG_LINE@python.inline@                    available_freqs)@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@maxfreq = available_freqs[-1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target = int(round(maxfreq * target_percent))@@@",
+      "@@@STEP_LOG_LINE@python.inline@freq = maxfreq@@@",
+      "@@@STEP_LOG_LINE@python.inline@for f in reversed(available_freqs):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if f <= target:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    freq = f@@@",
+      "@@@STEP_LOG_LINE@python.inline@    break@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@print 'Setting frequency to %d' % freq@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# If scaling_max_freq is lower than our attempted setting, it won't take.@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
+      "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
+      "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "push",
+      "[START_DIR]/out/Debug/nanobench",
+      "/data/local/tmp/"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push nanobench"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "set -x; /data/local/tmp/nanobench --some-flag; echo $? >/data/local/tmp/rc",
+      "[START_DIR]/tmp/nanobench.sh"
+    ],
+    "infra_step": true,
+    "name": "write nanobench.sh"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "push",
+      "[START_DIR]/tmp/nanobench.sh",
+      "/data/local/tmp/"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push nanobench.sh"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "logcat",
+      "-c"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "clear log"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport subprocess\nimport sys\nbin_dir = sys.argv[1]\nsh      = sys.argv[2]\nsubprocess.check_call(['adb.1.0.35', 'shell', 'sh', bin_dir + sh])\ntry:\n  sys.exit(int(subprocess.check_output(['adb.1.0.35', 'shell', 'cat',\n                                        bin_dir + 'rc'])))\nexcept ValueError:\n  print \"Couldn't read the return code.  Probably killed for OOM.\"\n  sys.exit(1)\n",
+      "/data/local/tmp/",
+      "nanobench.sh"
+    ],
+    "name": "nanobench",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@bin_dir = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@sh      = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_call(['adb.1.0.35', 'shell', 'sh', bin_dir + sh])@@@",
+      "@@@STEP_LOG_LINE@python.inline@try:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  sys.exit(int(subprocess.check_output(['adb.1.0.35', 'shell', 'cat',@@@",
+      "@@@STEP_LOG_LINE@python.inline@                                        bin_dir + 'rc'])))@@@",
+      "@@@STEP_LOG_LINE@python.inline@except ValueError:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  print \"Couldn't read the return code.  Probably killed for OOM.\"@@@",
+      "@@@STEP_LOG_LINE@python.inline@  sys.exit(1)@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "pull",
+      "/sdcard/revenge_of_the_skiabot/perf",
+      "[CUSTOM_[SWARM_OUT_DIR]]/perfdata/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android/data"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "pull /sdcard/revenge_of_the_skiabot/perf [CUSTOM_[SWARM_OUT_DIR]]/perfdata/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Debug-All-Android/data"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "\nimport os\nimport subprocess\nimport sys\nout = sys.argv[1]\nlog = subprocess.check_output(['adb.1.0.35', 'logcat', '-d'])\nfor line in log.split('\\n'):\n  tokens = line.split()\n  if len(tokens) == 11 and tokens[-7] == 'F' and tokens[-3] == 'pc':\n    addr, path = tokens[-2:]\n    local = os.path.join(out, os.path.basename(path))\n    if os.path.exists(local):\n      sym = subprocess.check_output(['addr2line', '-Cfpe', local, addr])\n      line = line.replace(addr, addr + ' ' + sym.strip())\n  print line\n",
       "[START_DIR]/out/Debug"
     ],
@@ -753,23 +942,6 @@
   {
     "cmd": [
       "adb.1.0.35",
-      "shell",
-      "reboot",
-      "-p"
-    ],
-    "cwd": "[START_DIR]/skia",
-    "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
-      "SKIA_OUT": "[START_DIR]/out"
-    },
-    "infra_step": true,
-    "name": "shut down device to quarantine bot"
-  },
-  {
-    "cmd": [
-      "adb.1.0.35",
       "kill-server"
     ],
     "cwd": "[START_DIR]/skia",
@@ -784,8 +956,7 @@
   },
   {
     "name": "$result",
-    "reason": "Infra Failure: Step('Scale CPU to 0.600000') returned 1",
     "recipe_result": null,
-    "status_code": 1
+    "status_code": 0
   }
 ]
 \ No newline at end of file
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/failed_infra_step.json b/infra/bots/recipe_modules/flavor/examples/full.expected/failed_infra_step.json
index e39f273e05..4a1e8438c7 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/failed_infra_step.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/failed_infra_step.json
@@ -642,7 +642,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "0.6"
@@ -661,6 +661,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -704,9 +705,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/failed_read_version.json b/infra/bots/recipe_modules/flavor/examples/full.expected/failed_read_version.json
index 408cc9aec5..da27f93125 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/failed_read_version.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/failed_read_version.json
@@ -696,7 +696,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "0.6"
@@ -715,6 +715,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -758,9 +759,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command.json b/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command.json
index 27200f00e0..8f4b392011 100644
--- a/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command.json
+++ b/infra/bots/recipe_modules/flavor/examples/full.expected/retry_adb_command.json
@@ -696,7 +696,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "0.6"
@@ -715,6 +715,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -758,9 +759,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipe_modules/flavor/gn_android_flavor.py b/infra/bots/recipe_modules/flavor/gn_android_flavor.py
index 0f5a94a2bb..feba1b53cd 100644
--- a/infra/bots/recipe_modules/flavor/gn_android_flavor.py
+++ b/infra/bots/recipe_modules/flavor/gn_android_flavor.py
@@ -74,11 +74,14 @@ class GNAndroidFlavorUtils(default_flavor.DefaultFlavorUtils):
     if (self.m.vars.builder_cfg.get('model') in self.rootable_blacklist or
         self.m.vars.internal_hardware_label):
       return
-    self.m.run(self.m.python.inline, 'Scale CPU to %f' % target_percent,
+    self.m.run.with_retry(self.m.python.inline,
+        'Scale CPU to %f' % target_percent,
+        3, # attempts
         program="""
 import os
 import subprocess
 import sys
+import time
 ADB = sys.argv[1]
 model = sys.argv[2]
 target_percent = float(sys.argv[3])
@@ -122,9 +125,12 @@ subprocess.check_output([ADB, 'shell', 'echo "userspace" > '
 subprocess.check_output([ADB, 'shell', 'echo %d > '
     '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])
 subprocess.check_output([ADB, 'shell', 'echo %d > '
+    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])
+subprocess.check_output([ADB, 'shell', 'echo %d > '
     '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])
+time.sleep(5)
 actual_freq = subprocess.check_output([ADB, 'shell', 'cat '
-    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()
+    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()
 if actual_freq != str(freq):
   raise Exception('(actual, expected) (%s, %d)'
                   % (actual_freq, freq))
diff --git a/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json b/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json
index 3354a81cf9..cf01e1702c 100644
--- a/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json
+++ b/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json
@@ -576,7 +576,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Nexus10",
       "0.6"
@@ -595,6 +595,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -638,9 +639,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus5-GPU-Adreno330-arm-Debug-All-Android.json b/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus5-GPU-Adreno330-arm-Debug-All-Android.json
index 67bc086c62..79353c6b32 100644
--- a/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus5-GPU-Adreno330-arm-Debug-All-Android.json
+++ b/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus5-GPU-Adreno330-arm-Debug-All-Android.json
@@ -540,7 +540,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Nexus5",
       "0.6"
@@ -559,6 +559,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -602,9 +603,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus7-GPU-Tegra3-arm-Release-All-Android.json b/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus7-GPU-Tegra3-arm-Release-All-Android.json
index 5e6633b67c..01b5ad37df 100644
--- a/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus7-GPU-Tegra3-arm-Release-All-Android.json
+++ b/infra/bots/recipes/perf.expected/Perf-Android-Clang-Nexus7-GPU-Tegra3-arm-Release-All-Android.json
@@ -576,7 +576,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Nexus7",
       "0.6"
@@ -595,6 +595,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -638,9 +639,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/perf.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android.json b/infra/bots/recipes/perf.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android.json
index 69782198f0..474096647f 100644
--- a/infra/bots/recipes/perf.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android.json
+++ b/infra/bots/recipes/perf.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android.json
@@ -576,7 +576,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "0.6"
@@ -595,6 +595,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -638,9 +639,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/perf.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android_Vulkan.json b/infra/bots/recipes/perf.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android_Vulkan.json
index f77eef4831..2424c447e0 100644
--- a/infra/bots/recipes/perf.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android_Vulkan.json
+++ b/infra/bots/recipes/perf.expected/Perf-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android_Vulkan.json
@@ -576,7 +576,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "0.6"
@@ -595,6 +595,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -638,9 +639,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/perf.expected/Perf-Android-Clang-PixelC-GPU-TegraX1-arm64-Release-All-Android_Skpbench.json b/infra/bots/recipes/perf.expected/Perf-Android-Clang-PixelC-GPU-TegraX1-arm64-Release-All-Android_Skpbench.json
index 63accb158f..4dbf05c630 100644
--- a/infra/bots/recipes/perf.expected/Perf-Android-Clang-PixelC-GPU-TegraX1-arm64-Release-All-Android_Skpbench.json
+++ b/infra/bots/recipes/perf.expected/Perf-Android-Clang-PixelC-GPU-TegraX1-arm64-Release-All-Android_Skpbench.json
@@ -576,7 +576,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "PixelC",
       "0.6"
@@ -595,6 +595,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -638,9 +639,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/perf.expected/cpu_scale_failed.json b/infra/bots/recipes/perf.expected/cpu_scale_failed.json
index 1c70a873ab..84161e13ac 100644
--- a/infra/bots/recipes/perf.expected/cpu_scale_failed.json
+++ b/infra/bots/recipes/perf.expected/cpu_scale_failed.json
@@ -540,7 +540,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "0.6"
@@ -560,6 +560,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -603,9 +604,174 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
+      "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
+      "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
+      "@@@STEP_LOG_END@python.inline@@@",
+      "@@@STEP_EXCEPTION@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "adb.1.0.35",
+      "NexusPlayer",
+      "0.6"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "Scale CPU to 0.600000 (attempt 2)",
+    "timeout": 30,
+    "~followup_annotations": [
+      "step returned non-zero exit code: 1",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
+      "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
+      "@@@STEP_LOG_LINE@python.inline@log = subprocess.check_output([ADB, 'root'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# check for message like 'adbd cannot run as root in production builds'@@@",
+      "@@@STEP_LOG_LINE@python.inline@if 'cannot' in log:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('adb root failed')@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@if model == 'Nexus10':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@elif model == 'Nexus7':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Nexus7 claims to support 1300000, but only really allows 1200000@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,@@@",
+      "@@@STEP_LOG_LINE@python.inline@                     860000, 1000000, 1100000, 1200000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Most devices give a list of their available frequencies.@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Check for message like '/system/bin/sh: file not found'@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if available_freqs and '/system/bin/sh' not in available_freqs:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    available_freqs = sorted(@@@",
+      "@@@STEP_LOG_LINE@python.inline@        int(i) for i in available_freqs.strip().split())@@@",
+      "@@@STEP_LOG_LINE@python.inline@  else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    raise Exception('Could not get list of available frequencies: %s' %@@@",
+      "@@@STEP_LOG_LINE@python.inline@                    available_freqs)@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@maxfreq = available_freqs[-1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target = int(round(maxfreq * target_percent))@@@",
+      "@@@STEP_LOG_LINE@python.inline@freq = maxfreq@@@",
+      "@@@STEP_LOG_LINE@python.inline@for f in reversed(available_freqs):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if f <= target:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    freq = f@@@",
+      "@@@STEP_LOG_LINE@python.inline@    break@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@print 'Setting frequency to %d' % freq@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# If scaling_max_freq is lower than our attempted setting, it won't take.@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
+      "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
+      "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
+      "@@@STEP_LOG_END@python.inline@@@",
+      "@@@STEP_EXCEPTION@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "adb.1.0.35",
+      "NexusPlayer",
+      "0.6"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "Scale CPU to 0.600000 (attempt 3)",
+    "timeout": 30,
+    "~followup_annotations": [
+      "step returned non-zero exit code: 1",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
+      "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
+      "@@@STEP_LOG_LINE@python.inline@log = subprocess.check_output([ADB, 'root'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# check for message like 'adbd cannot run as root in production builds'@@@",
+      "@@@STEP_LOG_LINE@python.inline@if 'cannot' in log:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('adb root failed')@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@if model == 'Nexus10':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@elif model == 'Nexus7':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Nexus7 claims to support 1300000, but only really allows 1200000@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,@@@",
+      "@@@STEP_LOG_LINE@python.inline@                     860000, 1000000, 1100000, 1200000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Most devices give a list of their available frequencies.@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Check for message like '/system/bin/sh: file not found'@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if available_freqs and '/system/bin/sh' not in available_freqs:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    available_freqs = sorted(@@@",
+      "@@@STEP_LOG_LINE@python.inline@        int(i) for i in available_freqs.strip().split())@@@",
+      "@@@STEP_LOG_LINE@python.inline@  else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    raise Exception('Could not get list of available frequencies: %s' %@@@",
+      "@@@STEP_LOG_LINE@python.inline@                    available_freqs)@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@maxfreq = available_freqs[-1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target = int(round(maxfreq * target_percent))@@@",
+      "@@@STEP_LOG_LINE@python.inline@freq = maxfreq@@@",
+      "@@@STEP_LOG_LINE@python.inline@for f in reversed(available_freqs):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if f <= target:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    freq = f@@@",
+      "@@@STEP_LOG_LINE@python.inline@    break@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@print 'Setting frequency to %d' % freq@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# If scaling_max_freq is lower than our attempted setting, it won't take.@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
@@ -682,7 +848,7 @@
   },
   {
     "name": "$result",
-    "reason": "Failed build steps: Scale CPU to 0.600000, Scale CPU to 0.600000",
+    "reason": "Failed build steps: Scale CPU to 0.600000, Scale CPU to 0.600000 (attempt 2), Scale CPU to 0.600000 (attempt 3), Scale CPU to 0.600000 (attempt 3)",
     "recipe_result": null,
     "status_code": 1
   }
diff --git a/infra/bots/recipes/perf.expected/cpu_scale_failed_once.json b/infra/bots/recipes/perf.expected/cpu_scale_failed_once.json
new file mode 100644
index 0000000000..4a301748db
--- /dev/null
+++ b/infra/bots/recipes/perf.expected/cpu_scale_failed_once.json
@@ -0,0 +1,855 @@
+[
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "mkdir",
+      "-p",
+      "/sdcard/revenge_of_the_skiabot/resources"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "mkdir /sdcard/revenge_of_the_skiabot/resources"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport os\nimport subprocess\nimport sys\nhost   = sys.argv[1]\ndevice = sys.argv[2]\nfor d, _, fs in os.walk(host):\n  p = os.path.relpath(d, host)\n  if p != '.' and p.startswith('.'):\n    continue\n  for f in fs:\n    print os.path.join(p,f)\n    subprocess.check_call(['adb.1.0.35', 'push',\n                           os.path.realpath(os.path.join(host, p, f)),\n                           os.path.join(device, p, f)])\n",
+      "[START_DIR]/skia/resources",
+      "/sdcard/revenge_of_the_skiabot/resources"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push [START_DIR]/skia/resources/* /sdcard/revenge_of_the_skiabot/resources",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@host   = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@device = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@for d, _, fs in os.walk(host):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  p = os.path.relpath(d, host)@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if p != '.' and p.startswith('.'):@@@",
+      "@@@STEP_LOG_LINE@python.inline@    continue@@@",
+      "@@@STEP_LOG_LINE@python.inline@  for f in fs:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    print os.path.join(p,f)@@@",
+      "@@@STEP_LOG_LINE@python.inline@    subprocess.check_call(['adb.1.0.35', 'push',@@@",
+      "@@@STEP_LOG_LINE@python.inline@                           os.path.realpath(os.path.join(host, p, f)),@@@",
+      "@@@STEP_LOG_LINE@python.inline@                           os.path.join(device, p, f)])@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skp/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SKP VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SKP_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SKP_VERSION"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "cat",
+      "/sdcard/revenge_of_the_skiabot/SKP_VERSION"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "read /sdcard/revenge_of_the_skiabot/SKP_VERSION",
+    "stdout": "/path/to/tmp/"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "rm",
+      "-f",
+      "/sdcard/revenge_of_the_skiabot/SKP_VERSION"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "rm /sdcard/revenge_of_the_skiabot/SKP_VERSION"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "rm",
+      "-rf",
+      "/sdcard/revenge_of_the_skiabot/skps"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "rm /sdcard/revenge_of_the_skiabot/skps"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "mkdir",
+      "-p",
+      "/sdcard/revenge_of_the_skiabot/skps"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "mkdir /sdcard/revenge_of_the_skiabot/skps"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport os\nimport subprocess\nimport sys\nhost   = sys.argv[1]\ndevice = sys.argv[2]\nfor d, _, fs in os.walk(host):\n  p = os.path.relpath(d, host)\n  if p != '.' and p.startswith('.'):\n    continue\n  for f in fs:\n    print os.path.join(p,f)\n    subprocess.check_call(['adb.1.0.35', 'push',\n                           os.path.realpath(os.path.join(host, p, f)),\n                           os.path.join(device, p, f)])\n",
+      "[START_DIR]/skp",
+      "/sdcard/revenge_of_the_skiabot/skps"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push [START_DIR]/skp/* /sdcard/revenge_of_the_skiabot/skps",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@host   = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@device = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@for d, _, fs in os.walk(host):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  p = os.path.relpath(d, host)@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if p != '.' and p.startswith('.'):@@@",
+      "@@@STEP_LOG_LINE@python.inline@    continue@@@",
+      "@@@STEP_LOG_LINE@python.inline@  for f in fs:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    print os.path.join(p,f)@@@",
+      "@@@STEP_LOG_LINE@python.inline@    subprocess.check_call(['adb.1.0.35', 'push',@@@",
+      "@@@STEP_LOG_LINE@python.inline@                           os.path.realpath(os.path.join(host, p, f)),@@@",
+      "@@@STEP_LOG_LINE@python.inline@                           os.path.join(device, p, f)])@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "push",
+      "[START_DIR]/tmp/SKP_VERSION",
+      "/sdcard/revenge_of_the_skiabot/SKP_VERSION"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push [START_DIR]/tmp/SKP_VERSION /sdcard/revenge_of_the_skiabot/SKP_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/skimage/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded skimage VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SK_IMAGE_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SK_IMAGE_VERSION"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "cat",
+      "/sdcard/revenge_of_the_skiabot/SK_IMAGE_VERSION"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "read /sdcard/revenge_of_the_skiabot/SK_IMAGE_VERSION",
+    "stdout": "/path/to/tmp/"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "rm",
+      "-f",
+      "/sdcard/revenge_of_the_skiabot/SK_IMAGE_VERSION"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "rm /sdcard/revenge_of_the_skiabot/SK_IMAGE_VERSION"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "rm",
+      "-rf",
+      "/sdcard/revenge_of_the_skiabot/images"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "rm /sdcard/revenge_of_the_skiabot/images"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "mkdir",
+      "-p",
+      "/sdcard/revenge_of_the_skiabot/images"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "mkdir /sdcard/revenge_of_the_skiabot/images"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport os\nimport subprocess\nimport sys\nhost   = sys.argv[1]\ndevice = sys.argv[2]\nfor d, _, fs in os.walk(host):\n  p = os.path.relpath(d, host)\n  if p != '.' and p.startswith('.'):\n    continue\n  for f in fs:\n    print os.path.join(p,f)\n    subprocess.check_call(['adb.1.0.35', 'push',\n                           os.path.realpath(os.path.join(host, p, f)),\n                           os.path.join(device, p, f)])\n",
+      "[START_DIR]/skimage",
+      "/sdcard/revenge_of_the_skiabot/images"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push [START_DIR]/skimage/* /sdcard/revenge_of_the_skiabot/images",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@host   = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@device = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@for d, _, fs in os.walk(host):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  p = os.path.relpath(d, host)@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if p != '.' and p.startswith('.'):@@@",
+      "@@@STEP_LOG_LINE@python.inline@    continue@@@",
+      "@@@STEP_LOG_LINE@python.inline@  for f in fs:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    print os.path.join(p,f)@@@",
+      "@@@STEP_LOG_LINE@python.inline@    subprocess.check_call(['adb.1.0.35', 'push',@@@",
+      "@@@STEP_LOG_LINE@python.inline@                           os.path.realpath(os.path.join(host, p, f)),@@@",
+      "@@@STEP_LOG_LINE@python.inline@                           os.path.join(device, p, f)])@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "push",
+      "[START_DIR]/tmp/SK_IMAGE_VERSION",
+      "/sdcard/revenge_of_the_skiabot/SK_IMAGE_VERSION"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push [START_DIR]/tmp/SK_IMAGE_VERSION /sdcard/revenge_of_the_skiabot/SK_IMAGE_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[START_DIR]/skia/infra/bots/assets/svg/VERSION",
+      "/path/to/tmp/"
+    ],
+    "infra_step": true,
+    "name": "Get downloaded SVG VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "42",
+      "[START_DIR]/tmp/SVG_VERSION"
+    ],
+    "infra_step": true,
+    "name": "write SVG_VERSION"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "cat",
+      "/sdcard/revenge_of_the_skiabot/SVG_VERSION"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "read /sdcard/revenge_of_the_skiabot/SVG_VERSION",
+    "stdout": "/path/to/tmp/"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "rm",
+      "-f",
+      "/sdcard/revenge_of_the_skiabot/SVG_VERSION"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "rm /sdcard/revenge_of_the_skiabot/SVG_VERSION"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "rm",
+      "-rf",
+      "/sdcard/revenge_of_the_skiabot/svgs"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "rm /sdcard/revenge_of_the_skiabot/svgs"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "shell",
+      "mkdir",
+      "-p",
+      "/sdcard/revenge_of_the_skiabot/svgs"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "mkdir /sdcard/revenge_of_the_skiabot/svgs"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport os\nimport subprocess\nimport sys\nhost   = sys.argv[1]\ndevice = sys.argv[2]\nfor d, _, fs in os.walk(host):\n  p = os.path.relpath(d, host)\n  if p != '.' and p.startswith('.'):\n    continue\n  for f in fs:\n    print os.path.join(p,f)\n    subprocess.check_call(['adb.1.0.35', 'push',\n                           os.path.realpath(os.path.join(host, p, f)),\n                           os.path.join(device, p, f)])\n",
+      "[START_DIR]/svg",
+      "/sdcard/revenge_of_the_skiabot/svgs"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push [START_DIR]/svg/* /sdcard/revenge_of_the_skiabot/svgs",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@host   = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@device = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@for d, _, fs in os.walk(host):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  p = os.path.relpath(d, host)@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if p != '.' and p.startswith('.'):@@@",
+      "@@@STEP_LOG_LINE@python.inline@    continue@@@",
+      "@@@STEP_LOG_LINE@python.inline@  for f in fs:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    print os.path.join(p,f)@@@",
+      "@@@STEP_LOG_LINE@python.inline@    subprocess.check_call(['adb.1.0.35', 'push',@@@",
+      "@@@STEP_LOG_LINE@python.inline@                           os.path.realpath(os.path.join(host, p, f)),@@@",
+      "@@@STEP_LOG_LINE@python.inline@                           os.path.join(device, p, f)])@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "push",
+      "[START_DIR]/tmp/SVG_VERSION",
+      "/sdcard/revenge_of_the_skiabot/SVG_VERSION"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push [START_DIR]/tmp/SVG_VERSION /sdcard/revenge_of_the_skiabot/SVG_VERSION"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "import os\nprint os.environ.get('SWARMING_BOT_ID', '')\n"
+    ],
+    "name": "get swarming bot id",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@print os.environ.get('SWARMING_BOT_ID', '')@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "import os\nprint os.environ.get('SWARMING_TASK_ID', '')\n"
+    ],
+    "name": "get swarming task id",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@print os.environ.get('SWARMING_TASK_ID', '')@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "adb.1.0.35",
+      "NexusPlayer",
+      "0.6"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "Scale CPU to 0.600000",
+    "timeout": 30,
+    "~followup_annotations": [
+      "step returned non-zero exit code: 1",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
+      "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
+      "@@@STEP_LOG_LINE@python.inline@log = subprocess.check_output([ADB, 'root'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# check for message like 'adbd cannot run as root in production builds'@@@",
+      "@@@STEP_LOG_LINE@python.inline@if 'cannot' in log:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('adb root failed')@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@if model == 'Nexus10':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@elif model == 'Nexus7':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Nexus7 claims to support 1300000, but only really allows 1200000@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,@@@",
+      "@@@STEP_LOG_LINE@python.inline@                     860000, 1000000, 1100000, 1200000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Most devices give a list of their available frequencies.@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Check for message like '/system/bin/sh: file not found'@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if available_freqs and '/system/bin/sh' not in available_freqs:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    available_freqs = sorted(@@@",
+      "@@@STEP_LOG_LINE@python.inline@        int(i) for i in available_freqs.strip().split())@@@",
+      "@@@STEP_LOG_LINE@python.inline@  else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    raise Exception('Could not get list of available frequencies: %s' %@@@",
+      "@@@STEP_LOG_LINE@python.inline@                    available_freqs)@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@maxfreq = available_freqs[-1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target = int(round(maxfreq * target_percent))@@@",
+      "@@@STEP_LOG_LINE@python.inline@freq = maxfreq@@@",
+      "@@@STEP_LOG_LINE@python.inline@for f in reversed(available_freqs):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if f <= target:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    freq = f@@@",
+      "@@@STEP_LOG_LINE@python.inline@    break@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@print 'Setting frequency to %d' % freq@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# If scaling_max_freq is lower than our attempted setting, it won't take.@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
+      "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
+      "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
+      "@@@STEP_LOG_END@python.inline@@@",
+      "@@@STEP_EXCEPTION@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "adb.1.0.35",
+      "NexusPlayer",
+      "0.6"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "Scale CPU to 0.600000 (attempt 2)",
+    "timeout": 30,
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
+      "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
+      "@@@STEP_LOG_LINE@python.inline@log = subprocess.check_output([ADB, 'root'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# check for message like 'adbd cannot run as root in production builds'@@@",
+      "@@@STEP_LOG_LINE@python.inline@if 'cannot' in log:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('adb root failed')@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@if model == 'Nexus10':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@elif model == 'Nexus7':@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Nexus7 claims to support 1300000, but only really allows 1200000@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,@@@",
+      "@@@STEP_LOG_LINE@python.inline@                     860000, 1000000, 1100000, 1200000]@@@",
+      "@@@STEP_LOG_LINE@python.inline@else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Most devices give a list of their available frequencies.@@@",
+      "@@@STEP_LOG_LINE@python.inline@  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@  # Check for message like '/system/bin/sh: file not found'@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if available_freqs and '/system/bin/sh' not in available_freqs:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    available_freqs = sorted(@@@",
+      "@@@STEP_LOG_LINE@python.inline@        int(i) for i in available_freqs.strip().split())@@@",
+      "@@@STEP_LOG_LINE@python.inline@  else:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    raise Exception('Could not get list of available frequencies: %s' %@@@",
+      "@@@STEP_LOG_LINE@python.inline@                    available_freqs)@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@maxfreq = available_freqs[-1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@target = int(round(maxfreq * target_percent))@@@",
+      "@@@STEP_LOG_LINE@python.inline@freq = maxfreq@@@",
+      "@@@STEP_LOG_LINE@python.inline@for f in reversed(available_freqs):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if f <= target:@@@",
+      "@@@STEP_LOG_LINE@python.inline@    freq = f@@@",
+      "@@@STEP_LOG_LINE@python.inline@    break@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@print 'Setting frequency to %d' % freq@@@",
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@# If scaling_max_freq is lower than our attempted setting, it won't take.@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
+      "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
+      "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "push",
+      "[START_DIR]/out/Debug/nanobench",
+      "/data/local/tmp/"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push nanobench"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "set -x; /data/local/tmp/nanobench -i /sdcard/revenge_of_the_skiabot/resources --skps /sdcard/revenge_of_the_skiabot/skps --images /sdcard/revenge_of_the_skiabot/images/nanobench --svgs /sdcard/revenge_of_the_skiabot/svgs --pre_log --scales 1.0 1.1 --nogpu --config 8888 nonrendering f16 srgb --match ~blurroundrect ~patch_grid ~desk_carsvg ~inc0.gif ~inc1.gif ~incInterlaced.gif ~inc0.jpg ~incGray.jpg ~inc0.wbmp ~inc1.wbmp ~inc0.webp ~inc1.webp ~inc0.ico ~inc1.ico ~inc0.png ~inc1.png ~inc2.png ~inc12.png ~inc13.png ~inc14.png ~inc0.webp ~inc1.webp; echo $? >/data/local/tmp/rc",
+      "[START_DIR]/tmp/nanobench.sh"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "write nanobench.sh"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "push",
+      "[START_DIR]/tmp/nanobench.sh",
+      "/data/local/tmp/"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "push nanobench.sh"
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "logcat",
+      "-c"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "clear log"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport subprocess\nimport sys\nbin_dir = sys.argv[1]\nsh      = sys.argv[2]\nsubprocess.check_call(['adb.1.0.35', 'shell', 'sh', bin_dir + sh])\ntry:\n  sys.exit(int(subprocess.check_output(['adb.1.0.35', 'shell', 'cat',\n                                        bin_dir + 'rc'])))\nexcept ValueError:\n  print \"Couldn't read the return code.  Probably killed for OOM.\"\n  sys.exit(1)\n",
+      "/data/local/tmp/",
+      "nanobench.sh"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "name": "nanobench",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@bin_dir = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@sh      = sys.argv[2]@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_call(['adb.1.0.35', 'shell', 'sh', bin_dir + sh])@@@",
+      "@@@STEP_LOG_LINE@python.inline@try:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  sys.exit(int(subprocess.check_output(['adb.1.0.35', 'shell', 'cat',@@@",
+      "@@@STEP_LOG_LINE@python.inline@                                        bin_dir + 'rc'])))@@@",
+      "@@@STEP_LOG_LINE@python.inline@except ValueError:@@@",
+      "@@@STEP_LOG_LINE@python.inline@  print \"Couldn't read the return code.  Probably killed for OOM.\"@@@",
+      "@@@STEP_LOG_LINE@python.inline@  sys.exit(1)@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "\nimport os\nimport subprocess\nimport sys\nout = sys.argv[1]\nlog = subprocess.check_output(['adb.1.0.35', 'logcat', '-d'])\nfor line in log.split('\\n'):\n  tokens = line.split()\n  if len(tokens) == 11 and tokens[-7] == 'F' and tokens[-3] == 'pc':\n    addr, path = tokens[-2:]\n    local = os.path.join(out, os.path.basename(path))\n    if os.path.exists(local):\n      sym = subprocess.check_output(['addr2line', '-Cfpe', local, addr])\n      line = line.replace(addr, addr + ' ' + sym.strip())\n  print line\n",
+      "[START_DIR]/out/Debug"
+    ],
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "dump log",
+    "timeout": 300,
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@python.inline@@@@",
+      "@@@STEP_LOG_LINE@python.inline@import os@@@",
+      "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
+      "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@out = sys.argv[1]@@@",
+      "@@@STEP_LOG_LINE@python.inline@log = subprocess.check_output(['adb.1.0.35', 'logcat', '-d'])@@@",
+      "@@@STEP_LOG_LINE@python.inline@for line in log.split('\\n'):@@@",
+      "@@@STEP_LOG_LINE@python.inline@  tokens = line.split()@@@",
+      "@@@STEP_LOG_LINE@python.inline@  if len(tokens) == 11 and tokens[-7] == 'F' and tokens[-3] == 'pc':@@@",
+      "@@@STEP_LOG_LINE@python.inline@    addr, path = tokens[-2:]@@@",
+      "@@@STEP_LOG_LINE@python.inline@    local = os.path.join(out, os.path.basename(path))@@@",
+      "@@@STEP_LOG_LINE@python.inline@    if os.path.exists(local):@@@",
+      "@@@STEP_LOG_LINE@python.inline@      sym = subprocess.check_output(['addr2line', '-Cfpe', local, addr])@@@",
+      "@@@STEP_LOG_LINE@python.inline@      line = line.replace(addr, addr + ' ' + sym.strip())@@@",
+      "@@@STEP_LOG_LINE@python.inline@  print line@@@",
+      "@@@STEP_LOG_END@python.inline@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "adb.1.0.35",
+      "kill-server"
+    ],
+    "cwd": "[START_DIR]/skia",
+    "env": {
+      "BUILDTYPE": "Debug",
+      "CHROME_HEADLESS": "1",
+      "PATH": "<PATH>:RECIPE_PACKAGE_REPO[depot_tools]",
+      "SKIA_OUT": "[START_DIR]/out"
+    },
+    "infra_step": true,
+    "name": "kill adb server"
+  },
+  {
+    "name": "$result",
+    "recipe_result": null,
+    "status_code": 0
+  }
+]
+\ No newline at end of file
diff --git a/infra/bots/recipes/perf.py b/infra/bots/recipes/perf.py
index cc414efed0..2362ea29a5 100644
--- a/infra/bots/recipes/perf.py
+++ b/infra/bots/recipes/perf.py
@@ -457,7 +457,7 @@ def GenTests(api):
   )
 
   yield (
-    api.test('cpu_scale_failed') +
+    api.test('cpu_scale_failed_once') +
     api.properties(buildername=builder,
                    revision='abc123',
                    path_config='kitchen',
@@ -474,3 +474,24 @@ def GenTests(api):
     ) +
     api.step_data('Scale CPU to 0.600000', retcode=1)
   )
+
+  yield (
+    api.test('cpu_scale_failed') +
+    api.properties(buildername=builder,
+                   revision='abc123',
+                   path_config='kitchen',
+                   swarm_out_dir='[SWARM_OUT_DIR]') +
+    api.path.exists(
+        api.path['start_dir'].join('skia'),
+        api.path['start_dir'].join('skia', 'infra', 'bots', 'assets',
+                                     'skimage', 'VERSION'),
+        api.path['start_dir'].join('skia', 'infra', 'bots', 'assets',
+                                     'skp', 'VERSION'),
+        api.path['start_dir'].join('skia', 'infra', 'bots', 'assets',
+                                     'svg', 'VERSION'),
+        api.path['start_dir'].join('tmp', 'uninteresting_hashes.txt')
+    ) +
+    api.step_data('Scale CPU to 0.600000', retcode=1)+
+    api.step_data('Scale CPU to 0.600000 (attempt 2)', retcode=1)+
+    api.step_data('Scale CPU to 0.600000 (attempt 3)', retcode=1)
+  )
diff --git a/infra/bots/recipes/test.expected/Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-All-Android.json b/infra/bots/recipes/test.expected/Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-All-Android.json
index fad77ea68d..57711a9ede 100644
--- a/infra/bots/recipes/test.expected/Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-All-Android.json
+++ b/infra/bots/recipes/test.expected/Test-Android-Clang-AndroidOne-GPU-Mali400MP2-arm-Release-All-Android.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "AndroidOne",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json b/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json
index 61011a80e1..7cc5a48b4e 100644
--- a/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json
+++ b/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus10-CPU-Exynos5250-arm-Release-All-Android.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Nexus10",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus5-GPU-Adreno330-arm-Release-All-Android.json b/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus5-GPU-Adreno330-arm-Release-All-Android.json
index af0c50c3e2..a4d24fd8f7 100644
--- a/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus5-GPU-Adreno330-arm-Release-All-Android.json
+++ b/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus5-GPU-Adreno330-arm-Release-All-Android.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Nexus5",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus7-GPU-Tegra3-arm-Debug-All-Android.json b/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus7-GPU-Tegra3-arm-Debug-All-Android.json
index a5ebb5f06a..14dc763683 100644
--- a/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus7-GPU-Tegra3-arm-Debug-All-Android.json
+++ b/infra/bots/recipes/test.expected/Test-Android-Clang-Nexus7-GPU-Tegra3-arm-Debug-All-Android.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Nexus7",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-CPU-Moorefield-x86-Release-All-Android.json b/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-CPU-Moorefield-x86-Release-All-Android.json
index ece7186b74..53a7a7e937 100644
--- a/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-CPU-Moorefield-x86-Release-All-Android.json
+++ b/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-CPU-Moorefield-x86-Release-All-Android.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android_Vulkan.json b/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android_Vulkan.json
index 8f9de761a8..18c75f0f52 100644
--- a/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android_Vulkan.json
+++ b/infra/bots/recipes/test.expected/Test-Android-Clang-NexusPlayer-GPU-PowerVR-x86-Release-All-Android_Vulkan.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "NexusPlayer",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/Test-Android-Clang-PixelC-CPU-TegraX1-arm64-Debug-All-Android.json b/infra/bots/recipes/test.expected/Test-Android-Clang-PixelC-CPU-TegraX1-arm64-Debug-All-Android.json
index 86179ea78f..19f2bd3b7d 100644
--- a/infra/bots/recipes/test.expected/Test-Android-Clang-PixelC-CPU-TegraX1-arm64-Debug-All-Android.json
+++ b/infra/bots/recipes/test.expected/Test-Android-Clang-PixelC-CPU-TegraX1-arm64-Debug-All-Android.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "PixelC",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/Test-Android-Clang-PixelXL-GPU-Adreno530-arm64-Debug-All-Android_CCPR.json b/infra/bots/recipes/test.expected/Test-Android-Clang-PixelXL-GPU-Adreno530-arm64-Debug-All-Android_CCPR.json
index a83185dbbf..b609372972 100644
--- a/infra/bots/recipes/test.expected/Test-Android-Clang-PixelXL-GPU-Adreno530-arm64-Debug-All-Android_CCPR.json
+++ b/infra/bots/recipes/test.expected/Test-Android-Clang-PixelXL-GPU-Adreno530-arm64-Debug-All-Android_CCPR.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "PixelXL",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/Test-Android-Clang-PixelXL-GPU-Adreno530-arm64-Debug-All-Android_Vulkan.json b/infra/bots/recipes/test.expected/Test-Android-Clang-PixelXL-GPU-Adreno530-arm64-Debug-All-Android_Vulkan.json
index c33a23e662..b73951b8d0 100644
--- a/infra/bots/recipes/test.expected/Test-Android-Clang-PixelXL-GPU-Adreno530-arm64-Debug-All-Android_Vulkan.json
+++ b/infra/bots/recipes/test.expected/Test-Android-Clang-PixelXL-GPU-Adreno530-arm64-Debug-All-Android_Vulkan.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "PixelXL",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/failed_get_hashes.json b/infra/bots/recipes/test.expected/failed_get_hashes.json
index e066a19d9d..ddbb052c5a 100644
--- a/infra/bots/recipes/test.expected/failed_get_hashes.json
+++ b/infra/bots/recipes/test.expected/failed_get_hashes.json
@@ -659,7 +659,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Nexus7",
       "1.0"
@@ -678,6 +678,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -721,9 +722,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
diff --git a/infra/bots/recipes/test.expected/failed_pull.json b/infra/bots/recipes/test.expected/failed_pull.json
index cdd0591cb4..5d9822d619 100644
--- a/infra/bots/recipes/test.expected/failed_pull.json
+++ b/infra/bots/recipes/test.expected/failed_pull.json
@@ -657,7 +657,7 @@
     "cmd": [
       "python",
       "-u",
-      "\nimport os\nimport subprocess\nimport sys\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
+      "\nimport os\nimport subprocess\nimport sys\nimport time\nADB = sys.argv[1]\nmodel = sys.argv[2]\ntarget_percent = float(sys.argv[3])\nlog = subprocess.check_output([ADB, 'root'])\n# check for message like 'adbd cannot run as root in production builds'\nif 'cannot' in log:\n  raise Exception('adb root failed')\n\nif model == 'Nexus10':\n  available_freqs = [200000, 300000, 400000, 500000, 600000, 700000, 800000]\nelif model == 'Nexus7':\n  # Nexus7 claims to support 1300000, but only really allows 1200000\n  available_freqs = [51000, 102000, 204000, 340000, 475000, 640000, 760000,\n                     860000, 1000000, 1100000, 1200000]\nelse:\n  # Most devices give a list of their available frequencies.\n  available_freqs = subprocess.check_output([ADB, 'shell', 'cat '\n      '/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies'])\n\n  # Check for message like '/system/bin/sh: file not found'\n  if available_freqs and '/system/bin/sh' not in available_freqs:\n    available_freqs = sorted(\n        int(i) for i in available_freqs.strip().split())\n  else:\n    raise Exception('Could not get list of available frequencies: %s' %\n                    available_freqs)\n\nmaxfreq = available_freqs[-1]\ntarget = int(round(maxfreq * target_percent))\nfreq = maxfreq\nfor f in reversed(available_freqs):\n  if f <= target:\n    freq = f\n    break\n\nprint 'Setting frequency to %d' % freq\n\nsubprocess.check_output([ADB, 'shell', 'echo \"userspace\" > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor'])\n# If scaling_max_freq is lower than our attempted setting, it won't take.\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])\nsubprocess.check_output([ADB, 'shell', 'echo %d > '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])\ntime.sleep(5)\nactual_freq = subprocess.check_output([ADB, 'shell', 'cat '\n    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()\nif actual_freq != str(freq):\n  raise Exception('(actual, expected) (%s, %d)'\n                  % (actual_freq, freq))\n",
       "adb.1.0.35",
       "Nexus7",
       "1.0"
@@ -676,6 +676,7 @@
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@import subprocess@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
+      "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@ADB = sys.argv[1]@@@",
       "@@@STEP_LOG_LINE@python.inline@model = sys.argv[2]@@@",
       "@@@STEP_LOG_LINE@python.inline@target_percent = float(sys.argv[3])@@@",
@@ -719,9 +720,12 @@
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq' % freq])@@@",
       "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@subprocess.check_output([ADB, 'shell', 'echo %d > '@@@",
       "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed' % freq])@@@",
+      "@@@STEP_LOG_LINE@python.inline@time.sleep(5)@@@",
       "@@@STEP_LOG_LINE@python.inline@actual_freq = subprocess.check_output([ADB, 'shell', 'cat '@@@",
-      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed']).strip()@@@",
+      "@@@STEP_LOG_LINE@python.inline@    '/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq']).strip()@@@",
       "@@@STEP_LOG_LINE@python.inline@if actual_freq != str(freq):@@@",
       "@@@STEP_LOG_LINE@python.inline@  raise Exception('(actual, expected) (%s, %d)'@@@",
       "@@@STEP_LOG_LINE@python.inline@                  % (actual_freq, freq))@@@",
author	Kevin Lubick <kjlubick@google.com>	2017-11-30 08:35:29 -0500
committer	Skia Commit-Bot <skia-commit-bot@chromium.org>	2017-11-30 14:13:22 +0000
commit	1c8092ac64dc4d9fd140d7fd46fa52163fe26569 (patch)
tree	199b0a34aadd3c993059af7a5726a0bf6d792ed4
parent	8816b93134db2fecdfd690fd26967468f6c814b9 (diff)