Merge branch 'master' of https://github.com/grpc/grpc into more-bm-diff

26 files changed, 3621 insertions, 82 deletions

diff --git a/tools/run_tests/artifacts/artifact_targets.py b/tools/run_tests/artifacts/artifact_targets.py
index c90da066c3..e3658acbf6 100644
--- a/tools/run_tests/artifacts/artifact_targets.py
+++ b/tools/run_tests/artifacts/artifact_targets.py
@@ -41,10 +41,11 @@ import python_utils.jobset as jobset
 
 def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
                    flake_retries=0, timeout_retries=0, timeout_seconds=30*60,
-                   docker_base_image=None):
+                   docker_base_image=None, extra_docker_args=None):
   """Creates jobspec for a task running under docker."""
   environ = environ.copy()
   environ['RUN_COMMAND'] = shell_command
+  environ['ARTIFACTS_OUT'] = 'artifacts/%s' % name
 
   docker_args=[]
   for k,v in environ.items():
@@ -55,6 +56,8 @@ def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
 
   if docker_base_image is not None:
     docker_env['DOCKER_BASE_IMAGE'] = docker_base_image
+  if extra_docker_args is not None:
+    docker_env['EXTRA_DOCKER_ARGS'] = extra_docker_args
   jobspec = jobset.JobSpec(
           cmdline=['tools/run_tests/dockerize/build_and_run_docker.sh'] + docker_args,
           environ=docker_env,
@@ -65,9 +68,20 @@ def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
   return jobspec
 
 
-def create_jobspec(name, cmdline, environ=None, shell=False,
-                   flake_retries=0, timeout_retries=0, timeout_seconds=30*60):
+def create_jobspec(name, cmdline, environ={}, shell=False,
+                   flake_retries=0, timeout_retries=0, timeout_seconds=30*60,
+                   use_workspace=False,
+                   cpu_cost=1.0):
   """Creates jobspec."""
+  environ = environ.copy()
+  if use_workspace:
+    environ['WORKSPACE_NAME'] = 'workspace_%s' % name
+    environ['ARTIFACTS_OUT'] = os.path.join('..', 'artifacts', name)
+    cmdline = ['bash',
+               'tools/run_tests/artifacts/run_in_workspace.sh'] + cmdline
+  else:
+    environ['ARTIFACTS_OUT'] = os.path.join('artifacts', name)
+
   jobspec = jobset.JobSpec(
           cmdline=cmdline,
           environ=environ,
@@ -75,7 +89,8 @@ def create_jobspec(name, cmdline, environ=None, shell=False,
           timeout_seconds=timeout_seconds,
           flake_retries=flake_retries,
           timeout_retries=timeout_retries,
-          shell=shell)
+          shell=shell,
+          cpu_cost=cpu_cost)
   return jobspec
 
 
@@ -102,7 +117,22 @@ class PythonArtifact:
 
   def build_jobspec(self):
     environ = {}
-    if self.platform == 'linux':
+    if self.platform == 'linux_extra':
+      # Raspberry Pi build
+      environ['PYTHON'] = '/usr/local/bin/python{}'.format(self.py_version)
+      environ['PIP'] = '/usr/local/bin/pip{}'.format(self.py_version)
+      # https://github.com/resin-io-projects/armv7hf-debian-qemu/issues/9
+      # A QEMU bug causes submodule update to hang, so we copy directly
+      environ['RELATIVE_COPY_PATH'] = '.'
+      extra_args = ' --entrypoint=/usr/bin/qemu-arm-static '
+      return create_docker_jobspec(self.name,
+          'tools/dockerfile/grpc_artifact_linux_{}'.format(self.arch),
+          'tools/run_tests/artifacts/build_artifact_python.sh',
+          environ=environ,
+          timeout_seconds=60*60*5,
+          docker_base_image='quay.io/grpc/raspbian_{}'.format(self.arch),
+          extra_docker_args=extra_args)
+    elif self.platform == 'linux':
       if self.arch == 'x86':
         environ['SETARCH_CMD'] = 'linux32'
       # Inside the manylinux container, the python installations are located in
@@ -137,13 +167,14 @@ class PythonArtifact:
                              dir
                             ],
                             environ=environ,
-                            shell=True)
+                            use_workspace=True)
     else:
       environ['PYTHON'] = self.py_version
       environ['SKIP_PIP_INSTALL'] = 'TRUE'
       return create_jobspec(self.name,
                             ['tools/run_tests/artifacts/build_artifact_python.sh'],
-                            environ=environ)
+                            environ=environ,
+                            use_workspace=True)
 
   def __str__(self):
     return self.name
@@ -162,20 +193,11 @@ class RubyArtifact:
     return []
 
   def build_jobspec(self):
-    if self.platform == 'windows':
-      raise Exception("Not supported yet")
-    else:
-      if self.platform == 'linux':
-        environ = {}
-        if self.arch == 'x86':
-          environ['SETARCH_CMD'] = 'linux32'
-        return create_docker_jobspec(self.name,
-            'tools/dockerfile/grpc_artifact_linux_%s' % self.arch,
-            'tools/run_tests/artifacts/build_artifact_ruby.sh',
-            environ=environ)
-      else:
-        return create_jobspec(self.name,
-                              ['tools/run_tests/artifacts/build_artifact_ruby.sh'])
+    # Ruby build uses docker internally and docker cannot be nested.
+    # We are using a custom workspace instead.
+    return create_jobspec(self.name,
+                          ['tools/run_tests/artifacts/build_artifact_ruby.sh'],
+                          use_workspace=True)
 
 
 class CSharpExtArtifact:
@@ -196,7 +218,7 @@ class CSharpExtArtifact:
       return create_jobspec(self.name,
                             ['tools\\run_tests\\artifacts\\build_artifact_csharp.bat',
                              cmake_arch_option],
-                            shell=True)
+                            use_workspace=True)
     else:
       environ = {'CONFIG': 'opt',
                  'EMBED_OPENSSL': 'true',
@@ -216,7 +238,8 @@ class CSharpExtArtifact:
         environ['LDFLAGS'] += ' %s' % archflag
         return create_jobspec(self.name,
                               ['tools/run_tests/artifacts/build_artifact_csharp.sh'],
-                              environ=environ)
+                              environ=environ,
+                              use_workspace=True)
 
   def __str__(self):
     return self.name
@@ -242,10 +265,15 @@ class NodeExtArtifact:
 
   def build_jobspec(self):
     if self.platform == 'windows':
+      # Simultaneous builds of node on the same windows machine are flaky.
+      # Set x86 build as exclusive to make sure there is only one node build
+      # at a time. See https://github.com/grpc/grpc/issues/8293
+      cpu_cost = 1e6 if self.arch != 'x64' else 1.0
       return create_jobspec(self.name,
                             ['tools\\run_tests\\artifacts\\build_artifact_node.bat',
                              self.gyp_arch],
-                            shell=True)
+                            use_workspace=True,
+                            cpu_cost=cpu_cost)
     else:
       if self.platform == 'linux':
         return create_docker_jobspec(
@@ -255,7 +283,8 @@ class NodeExtArtifact:
       else:
         return create_jobspec(self.name,
                               ['tools/run_tests/artifacts/build_artifact_node.sh',
-                               self.gyp_arch])
+                               self.gyp_arch],
+                               use_workspace=True)
 
 class PHPArtifact:
   """Builds PHP PECL package"""
@@ -277,7 +306,8 @@ class PHPArtifact:
           'tools/run_tests/artifacts/build_artifact_php.sh')
     else:
       return create_jobspec(self.name,
-                            ['tools/run_tests/artifacts/build_artifact_php.sh'])
+                            ['tools/run_tests/artifacts/build_artifact_php.sh'],
+                            use_workspace=True)
 
 class ProtocArtifact:
   """Builds protoc and protoc-plugin artifacts"""
@@ -310,14 +340,16 @@ class ProtocArtifact:
         environ['CXXFLAGS'] += ' -std=c++11 -stdlib=libc++ %s' % _MACOS_COMPAT_FLAG
         return create_jobspec(self.name,
             ['tools/run_tests/artifacts/build_artifact_protoc.sh'],
-            environ=environ)
+            environ=environ,
+            use_workspace=True)
     else:
       generator = 'Visual Studio 12 Win64' if self.arch == 'x64' else 'Visual Studio 12' 
       vcplatform = 'x64' if self.arch == 'x64' else 'Win32'
       return create_jobspec(self.name,
                             ['tools\\run_tests\\artifacts\\build_artifact_protoc.bat'],
                             environ={'generator': generator,
-                                     'Platform': vcplatform})
+                                     'Platform': vcplatform},
+                            use_workspace=True)
 
   def __str__(self):
     return self.name
@@ -334,6 +366,14 @@ def targets():
            PythonArtifact('linux', 'x86', 'cp34-cp34m'),
            PythonArtifact('linux', 'x86', 'cp35-cp35m'),
            PythonArtifact('linux', 'x86', 'cp36-cp36m'),
+           PythonArtifact('linux_extra', 'armv7', '2.7'),
+           PythonArtifact('linux_extra', 'armv7', '3.4'),
+           PythonArtifact('linux_extra', 'armv7', '3.5'),
+           PythonArtifact('linux_extra', 'armv7', '3.6'),
+           PythonArtifact('linux_extra', 'armv6', '2.7'),
+           PythonArtifact('linux_extra', 'armv6', '3.4'),
+           PythonArtifact('linux_extra', 'armv6', '3.5'),
+           PythonArtifact('linux_extra', 'armv6', '3.6'),
            PythonArtifact('linux', 'x64', 'cp27-cp27m'),
            PythonArtifact('linux', 'x64', 'cp27-cp27mu'),
            PythonArtifact('linux', 'x64', 'cp34-cp34m'),
@@ -351,7 +391,6 @@ def targets():
            PythonArtifact('windows', 'x64', 'Python34'),
            PythonArtifact('windows', 'x64', 'Python35'),
            PythonArtifact('windows', 'x64', 'Python36'),
-           RubyArtifact('linux', 'x86'),
            RubyArtifact('linux', 'x64'),
            RubyArtifact('macos', 'x64'),
            PHPArtifact('linux', 'x64'),
diff --git a/tools/run_tests/artifacts/build_artifact_csharp.bat b/tools/run_tests/artifacts/build_artifact_csharp.bat
index f84ebc5a35..ebb11bf909 100644
--- a/tools/run_tests/artifacts/build_artifact_csharp.bat
+++ b/tools/run_tests/artifacts/build_artifact_csharp.bat
@@ -37,8 +37,8 @@ cd cmake\build\%ARCHITECTURE%
 cmake --build . --target grpc_csharp_ext --config Release
 cd ..\..\..
 
-mkdir artifacts
-copy /Y cmake\build\Win32\Release\grpc_csharp_ext.dll artifacts || copy /Y cmake\build\x64\Release\grpc_csharp_ext.dll artifacts || goto :error
+mkdir -p %ARTIFACTS_OUT%
+copy /Y cmake\build\Win32\Release\grpc_csharp_ext.dll %ARTIFACTS_OUT% || copy /Y cmake\build\x64\Release\grpc_csharp_ext.dll %ARTIFACTS_OUT% || goto :error
 
 goto :EOF
 
diff --git a/tools/run_tests/artifacts/build_artifact_csharp.sh b/tools/run_tests/artifacts/build_artifact_csharp.sh
index aed04b2745..2bfa749fa3 100755
--- a/tools/run_tests/artifacts/build_artifact_csharp.sh
+++ b/tools/run_tests/artifacts/build_artifact_csharp.sh
@@ -34,5 +34,5 @@ cd $(dirname $0)/../../..
 
 make grpc_csharp_ext
 
-mkdir -p artifacts
-cp libs/opt/libgrpc_csharp_ext.so artifacts || cp libs/opt/libgrpc_csharp_ext.dylib artifacts
+mkdir -p "${ARTIFACTS_OUT}"
+cp libs/opt/libgrpc_csharp_ext.so "${ARTIFACTS_OUT}" || cp libs/opt/libgrpc_csharp_ext.dylib "${ARTIFACTS_OUT}"
diff --git a/tools/run_tests/artifacts/build_artifact_node.bat b/tools/run_tests/artifacts/build_artifact_node.bat
index bfd4461f72..da4d479a8c 100644
--- a/tools/run_tests/artifacts/build_artifact_node.bat
+++ b/tools/run_tests/artifacts/build_artifact_node.bat
@@ -37,7 +37,7 @@ del /f /q BUILD || rmdir build /s /q
 
 call npm update || goto :error
 
-mkdir artifacts
+mkdir -p %ARTIFACTS_OUT%
 
 for %%v in (%node_versions%) do (
   call .\node_modules\.bin\node-pre-gyp.cmd configure build --target=%%v --target_arch=%1
@@ -47,13 +47,13 @@ for %%v in (%node_versions%) do (
   rmdir "%HOMEDRIVE%%HOMEPATH%\.node-gyp\iojs-%%v\include\node\openssl" /S /Q
   call .\node_modules\.bin\node-pre-gyp.cmd build package testpackage --target=%%v --target_arch=%1 || goto :error
 
-  xcopy /Y /I /S build\stage\* artifacts\ || goto :error
+  xcopy /Y /I /S build\stage\* %ARTIFACTS_OUT%\ || goto :error
 )
 
 for %%v in (%electron_versions%) do (
   cmd /V /C "set "HOME=%HOMEDRIVE%%HOMEPATH%\electron-gyp" && call .\node_modules\.bin\node-pre-gyp.cmd configure rebuild package testpackage --runtime=electron --target=%%v --target_arch=%1 --disturl=https://atom.io/download/electron" || goto :error
 
-  xcopy /Y /I /S build\stage\* artifacts\ || goto :error
+  xcopy /Y /I /S build\stage\* %ARTIFACTS_OUT%\ || goto :error
 )
 if %errorlevel% neq 0 exit /b %errorlevel%
 
diff --git a/tools/run_tests/artifacts/build_artifact_node.sh b/tools/run_tests/artifacts/build_artifact_node.sh
index 7a747551e8..3947bded6f 100755
--- a/tools/run_tests/artifacts/build_artifact_node.sh
+++ b/tools/run_tests/artifacts/build_artifact_node.sh
@@ -38,7 +38,7 @@ cd $(dirname $0)/../../..
 
 rm -rf build || true
 
-mkdir -p artifacts
+mkdir -p "${ARTIFACTS_OUT}"
 
 npm update
 
@@ -49,11 +49,11 @@ electron_versions=( 1.0.0 1.1.0 1.2.0 1.3.0 1.4.0 1.5.0 1.6.0 )
 for version in ${node_versions[@]}
 do
   ./node_modules/.bin/node-pre-gyp configure rebuild package testpackage --target=$version --target_arch=$NODE_TARGET_ARCH --grpc_alpine=true
-  cp -r build/stage/* artifacts/
+  cp -r build/stage/* "${ARTIFACTS_OUT}"/
 done
 
 for version in ${electron_versions[@]}
 do
   HOME=~/.electron-gyp ./node_modules/.bin/node-pre-gyp configure rebuild package testpackage --runtime=electron --target=$version --target_arch=$NODE_TARGET_ARCH --disturl=https://atom.io/download/electron
-  cp -r build/stage/* artifacts/
+  cp -r build/stage/* "${ARTIFACTS_OUT}"/
 done
diff --git a/tools/run_tests/artifacts/build_artifact_php.sh b/tools/run_tests/artifacts/build_artifact_php.sh
index c8d55860c1..d7f8c8f028 100755
--- a/tools/run_tests/artifacts/build_artifact_php.sh
+++ b/tools/run_tests/artifacts/build_artifact_php.sh
@@ -33,8 +33,8 @@ set -ex
 
 cd $(dirname $0)/../../..
 
-mkdir -p artifacts
+mkdir -p "${ARTIFACTS_OUT}"
 
 pear package
 
-cp -r grpc-*.tgz artifacts/
+cp -r grpc-*.tgz "${ARTIFACTS_OUT}"/
diff --git a/tools/run_tests/artifacts/build_artifact_protoc.bat b/tools/run_tests/artifacts/build_artifact_protoc.bat
index b2bf86da40..def64bdfee 100644
--- a/tools/run_tests/artifacts/build_artifact_protoc.bat
+++ b/tools/run_tests/artifacts/build_artifact_protoc.bat
@@ -27,7 +27,7 @@
 @rem (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 @rem OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-mkdir artifacts
+mkdir -p %ARTIFACTS_OUT%
 
 setlocal
 cd third_party/protobuf/cmake
@@ -39,8 +39,8 @@ endlocal
 
 call vsprojects/build_plugins.bat || goto :error
 
-xcopy /Y third_party\protobuf\cmake\build\solution\Release\protoc.exe artifacts\ || goto :error
-xcopy /Y vsprojects\Release\*_plugin.exe artifacts\ || xcopy /Y vsprojects\x64\Release\*_plugin.exe artifacts\ || goto :error
+xcopy /Y third_party\protobuf\cmake\build\solution\Release\protoc.exe %ARTIFACTS_OUT%\ || goto :error
+xcopy /Y vsprojects\Release\*_plugin.exe %ARTIFACTS_OUT%\ || xcopy /Y vsprojects\x64\Release\*_plugin.exe %ARTIFACTS_OUT%\ || goto :error
 
 goto :EOF
 
diff --git a/tools/run_tests/artifacts/build_artifact_protoc.sh b/tools/run_tests/artifacts/build_artifact_protoc.sh
index 26c2280eff..df78203739 100755
--- a/tools/run_tests/artifacts/build_artifact_protoc.sh
+++ b/tools/run_tests/artifacts/build_artifact_protoc.sh
@@ -37,5 +37,5 @@ cd $(dirname $0)/../../..
 
 make plugins
 
-mkdir -p artifacts
-cp bins/opt/protobuf/protoc bins/opt/*_plugin artifacts/
+mkdir -p "${ARTIFACTS_OUT}"
+cp bins/opt/protobuf/protoc bins/opt/*_plugin "${ARTIFACTS_OUT}"/
diff --git a/tools/run_tests/artifacts/build_artifact_python.bat b/tools/run_tests/artifacts/build_artifact_python.bat
index 246713a6ce..860b9e831d 100644
--- a/tools/run_tests/artifacts/build_artifact_python.bat
+++ b/tools/run_tests/artifacts/build_artifact_python.bat
@@ -38,8 +38,9 @@ set GRPC_PYTHON_BUILD_WITH_CYTHON=1
 
 @rem Multiple builds are running simultaneously, so to avoid distutils
 @rem file collisions, we build everything in a tmp directory
-if not exist "artifacts" mkdir "artifacts"
-set ARTIFACT_DIR=%cd%\artifacts
+@rem TODO(jtattermusch): it doesn't look like builds are actually running in parallel in the same dir
+mkdir -p %ARTIFACTS_OUT%
+set ARTIFACT_DIR=%cd%\%ARTIFACTS_OUT%
 set BUILD_DIR=C:\Windows\Temp\pygrpc-%3\
 mkdir %BUILD_DIR%
 xcopy /s/e/q %cd%\* %BUILD_DIR%
diff --git a/tools/run_tests/artifacts/build_artifact_python.sh b/tools/run_tests/artifacts/build_artifact_python.sh
index 5a5506029a..a1f0a5857a 100755
--- a/tools/run_tests/artifacts/build_artifact_python.sh
+++ b/tools/run_tests/artifacts/build_artifact_python.sh
@@ -41,8 +41,9 @@ export AUDITWHEEL=${AUDITWHEEL:-auditwheel}
 # Because multiple builds run in parallel, some distutils file
 # operations may collide.  To avoid this, each build is run in
 # a temp directory
-mkdir -p artifacts
-ARTIFACT_DIR="$PWD/artifacts"
+# TODO(jtattermusch): it doesn't look like builds are actually running in parallel in the same dir
+mkdir -p "${ARTIFACTS_OUT}"
+ARTIFACT_DIR="$PWD/${ARTIFACTS_OUT}"
 BUILD_DIR=`mktemp -d "${TMPDIR:-/tmp}/pygrpc.XXXXXX"`
 trap "rm -rf $BUILD_DIR" EXIT
 cp -r * "$BUILD_DIR"
diff --git a/tools/run_tests/artifacts/build_artifact_ruby.sh b/tools/run_tests/artifacts/build_artifact_ruby.sh
index ca461ba561..c92d7a8a89 100755
--- a/tools/run_tests/artifacts/build_artifact_ruby.sh
+++ b/tools/run_tests/artifacts/build_artifact_ruby.sh
@@ -63,6 +63,6 @@ if [ "$SYSTEM" == "Darwin" ] ; then
   rm `ls pkg/*.gem | grep -v darwin`
 fi
 
-mkdir -p artifacts
+mkdir -p "${ARTIFACTS_OUT}"
 
-cp pkg/*.gem artifacts
+cp pkg/*.gem "${ARTIFACTS_OUT}"/
diff --git a/tools/run_tests/artifacts/build_package_node.sh b/tools/run_tests/artifacts/build_package_node.sh
index 8b5e8c0bc1..d06f141869 100755
--- a/tools/run_tests/artifacts/build_package_node.sh
+++ b/tools/run_tests/artifacts/build_package_node.sh
@@ -40,7 +40,7 @@ base=$(pwd)
 artifacts=$base/artifacts
 
 mkdir -p $artifacts
-cp -r $EXTERNAL_GIT_ROOT/architecture={x86,x64},language=node,platform={windows,linux,macos}/artifacts/* $artifacts/ || true
+cp -r $EXTERNAL_GIT_ROOT/platform={windows,linux,macos}/artifacts/node_ext_*/* $artifacts/ || true
 
 npm update
 npm pack
@@ -86,7 +86,7 @@ for arch in {x86,x64}; do
         ;;
     esac
     rm -r bin/*
-    input_dir="$EXTERNAL_GIT_ROOT/architecture=$arch,language=protoc,platform=$plat/artifacts"
+    input_dir="$EXTERNAL_GIT_ROOT/platform=${plat}/artifacts/protoc_${plat}_${arch}"
     cp $input_dir/protoc* bin/
     cp $input_dir/grpc_node_plugin* bin/
     mkdir -p bin/google/protobuf
diff --git a/tools/run_tests/artifacts/build_package_php.sh b/tools/run_tests/artifacts/build_package_php.sh
index 42a8d9f8df..16da58d065 100755
--- a/tools/run_tests/artifacts/build_package_php.sh
+++ b/tools/run_tests/artifacts/build_package_php.sh
@@ -33,4 +33,4 @@ set -ex
 cd $(dirname $0)/../../..
 
 mkdir -p artifacts/
-cp -r $EXTERNAL_GIT_ROOT/architecture={x86,x64},language=php,platform={windows,linux,macos}/artifacts/* artifacts/ || true
+cp -r $EXTERNAL_GIT_ROOT/platform={windows,linux,macos}/artifacts/php_*/* artifacts/ || true
diff --git a/tools/run_tests/artifacts/build_package_python.sh b/tools/run_tests/artifacts/build_package_python.sh
index 4a1c15ceee..9148bb0e59 100755
--- a/tools/run_tests/artifacts/build_package_python.sh
+++ b/tools/run_tests/artifacts/build_package_python.sh
@@ -36,7 +36,7 @@ mkdir -p artifacts/
 
 # All the python packages have been built in the artifact phase already
 # and we only collect them here to deliver them to the distribtest phase.
-cp -r $EXTERNAL_GIT_ROOT/architecture={x86,x64},language=python,platform={windows,linux,macos}/artifacts/* artifacts/ || true
+cp -r $EXTERNAL_GIT_ROOT/platform={windows,linux,macos}/artifacts/python_*/* artifacts/ || true
 
 # TODO: all the artifact builder configurations generate a grpcio-VERSION.tar.gz
 # source distribution package, and only one of them will end up
diff --git a/tools/run_tests/artifacts/build_package_ruby.sh b/tools/run_tests/artifacts/build_package_ruby.sh
index b4d20d8a4c..8388b84cc5 100755
--- a/tools/run_tests/artifacts/build_package_ruby.sh
+++ b/tools/run_tests/artifacts/build_package_ruby.sh
@@ -38,7 +38,7 @@ mkdir -p artifacts/
 
 # All the ruby packages have been built in the artifact phase already
 # and we only collect them here to deliver them to the distribtest phase.
-cp -r $EXTERNAL_GIT_ROOT/architecture={x86,x64},language=ruby,platform={windows,linux,macos}/artifacts/* artifacts/ || true
+cp -r $EXTERNAL_GIT_ROOT/platform={windows,linux,macos}/artifacts/ruby_native_gem_*/* artifacts/ || true
 
 well_known_protos=( any api compiler/plugin descriptor duration empty field_mask source_context struct timestamp type wrappers )
 
@@ -56,7 +56,7 @@ for arch in {x86,x64}; do
       ;;
   esac
   for plat in {windows,linux,macos}; do
-    input_dir="$EXTERNAL_GIT_ROOT/architecture=$arch,language=protoc,platform=$plat/artifacts"
+    input_dir="$EXTERNAL_GIT_ROOT/platform=${plat}/artifacts/protoc_${plat}_${arch}"
     output_dir="$base/src/ruby/tools/bin/${ruby_arch}-${plat}"
     mkdir -p $output_dir/google/protobuf
     mkdir -p $output_dir/google/protobuf/compiler  # needed for plugin.proto
diff --git a/tools/run_tests/artifacts/distribtest_targets.py b/tools/run_tests/artifacts/distribtest_targets.py
index 097fd2d8b5..3cb7d97b6d 100644
--- a/tools/run_tests/artifacts/distribtest_targets.py
+++ b/tools/run_tests/artifacts/distribtest_targets.py
@@ -63,8 +63,14 @@ def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
 
 
 def create_jobspec(name, cmdline, environ=None, shell=False,
-                   flake_retries=0, timeout_retries=0):
+                   flake_retries=0, timeout_retries=0,
+                   use_workspace=False):
   """Creates jobspec."""
+  environ = environ.copy()
+  if use_workspace:
+    environ['WORKSPACE_NAME'] = 'workspace_%s' % name
+    cmdline = ['bash',
+               'tools/run_tests/artifacts/run_in_workspace.sh'] + cmdline
   jobspec = jobset.JobSpec(
           cmdline=cmdline,
           environ=environ,
@@ -80,7 +86,7 @@ class CSharpDistribTest(object):
   """Tests C# NuGet package"""
 
   def __init__(self, platform, arch, docker_suffix=None, use_dotnet_cli=False):
-    self.name = 'csharp_nuget_%s_%s' % (platform, arch)
+    self.name = 'csharp_%s_%s' % (platform, arch)
     self.platform = platform
     self.arch = arch
     self.docker_suffix = docker_suffix
@@ -110,16 +116,18 @@ class CSharpDistribTest(object):
     elif self.platform == 'macos':
       return create_jobspec(self.name,
           ['test/distrib/csharp/run_distrib_test%s.sh' % self.script_suffix],
-          environ={'EXTERNAL_GIT_ROOT': '../../..'})
+          environ={'EXTERNAL_GIT_ROOT': '../../../..'},
+          use_workspace=True)
     elif self.platform == 'windows':
       if self.arch == 'x64':
         environ={'MSBUILD_EXTRA_ARGS': '/p:Platform=x64',
                  'DISTRIBTEST_OUTPATH': 'DistribTest\\bin\\x64\\Debug'}
       else:
-        environ={'DISTRIBTEST_OUTPATH': 'DistribTest\\bin\\\Debug'}
+        environ={'DISTRIBTEST_OUTPATH': 'DistribTest\\bin\\Debug'}
       return create_jobspec(self.name,
           ['test\\distrib\\csharp\\run_distrib_test%s.bat' % self.script_suffix],
-          environ=environ)
+          environ=environ,
+          use_workspace=True)
     else:
       raise Exception("Not supported yet.")
 
@@ -161,7 +169,8 @@ class NodeDistribTest(object):
       return create_jobspec(self.name,
                             ['test/distrib/node/run_distrib_test.sh',
                              str(self.node_version)],
-                            environ={'EXTERNAL_GIT_ROOT': '../../..'})
+                            environ={'EXTERNAL_GIT_ROOT': '../../../..'},
+                            use_workspace=True)
     else:
       raise Exception("Not supported yet.")
 
@@ -249,7 +258,8 @@ class PHPDistribTest(object):
     elif self.platform == 'macos':
       return create_jobspec(self.name,
           ['test/distrib/php/run_distrib_test.sh'],
-          environ={'EXTERNAL_GIT_ROOT': '../../..'})
+          environ={'EXTERNAL_GIT_ROOT': '../../../..'},
+          use_workspace=True)
     else:
       raise Exception("Not supported yet.")
 
@@ -339,5 +349,5 @@ def targets():
             NodeDistribTest('linux', 'x64', os, version)
             for os in ('wheezy', 'jessie', 'ubuntu1204', 'ubuntu1404',
                        'ubuntu1504', 'ubuntu1510', 'ubuntu1604')
-            for version in ('0.12', '3', '4', '5')
+            for version in ('4', '5')
           ]
diff --git a/tools/run_tests/artifacts/run_in_workspace.sh b/tools/run_tests/artifacts/run_in_workspace.sh
new file mode 100755
index 0000000000..ed3bfda8c0
--- /dev/null
+++ b/tools/run_tests/artifacts/run_in_workspace.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Create a workspace in a subdirectory to allow running multiple builds in isolation.
+# WORKSPACE_NAME env variable needs to contain name of the workspace to create.
+# All cmdline args will be executed as a command.
+set -ex
+
+cd $(dirname $0)/../../..
+export repo_root=$(pwd)
+
+rm -rf "${WORKSPACE_NAME}"
+git clone . "${WORKSPACE_NAME}"
+# clone gRPC submodules, use data from locally cloned submodules where possible
+git submodule foreach 'cd "${repo_root}/${WORKSPACE_NAME}" \
+    && git submodule update --init --reference ${repo_root}/${name} ${name}'
+
+echo "Running in workspace ${WORKSPACE_NAME}"
+cd ${WORKSPACE_NAME}
+$@
diff --git a/tools/run_tests/dockerize/build_and_run_docker.sh b/tools/run_tests/dockerize/build_and_run_docker.sh
index 8c25c861c1..6189e9a5c0 100755
--- a/tools/run_tests/dockerize/build_and_run_docker.sh
+++ b/tools/run_tests/dockerize/build_and_run_docker.sh
@@ -74,8 +74,9 @@ docker run \
   -v "$git_root:/var/local/jenkins/grpc:ro" \
   -w /var/local/git/grpc \
   --name=$CONTAINER_NAME \
+  $EXTRA_DOCKER_ARGS \
   $DOCKER_IMAGE_NAME \
-  bash -l "/var/local/jenkins/grpc/$DOCKER_RUN_SCRIPT" || FAILED="true"
+  /bin/bash -l "/var/local/jenkins/grpc/$DOCKER_RUN_SCRIPT" || FAILED="true"
 
 # Copy output artifacts
 if [ "$OUTPUT_DIR" != "" ]
diff --git a/tools/run_tests/generated/sources_and_headers.json b/tools/run_tests/generated/sources_and_headers.json
index a488c15b05..a5d7fda928 100644
--- a/tools/run_tests/generated/sources_and_headers.json
+++ b/tools/run_tests/generated/sources_and_headers.json
@@ -5064,6 +5064,24 @@
     "headers": [], 
     "is_filegroup": false, 
     "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "src": [
+      "test/core/end2end/fixtures/h2_full+workarounds.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "end2end_tests", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c", 
     "name": "h2_http_proxy_test", 
     "src": [
       "test/core/end2end/fixtures/h2_http_proxy.c"
@@ -5370,6 +5388,24 @@
     "headers": [], 
     "is_filegroup": false, 
     "language": "c", 
+    "name": "h2_full+workarounds_nosec_test", 
+    "src": [
+      "test/core/end2end/fixtures/h2_full+workarounds.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "end2end_nosec_tests", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c", 
     "name": "h2_http_proxy_nosec_test", 
     "src": [
       "test/core/end2end/fixtures/h2_http_proxy.c"
@@ -5764,10 +5800,12 @@
       "grpc_resolver_dns_native", 
       "grpc_resolver_sockaddr", 
       "grpc_secure", 
+      "grpc_server_backward_compatibility", 
       "grpc_transport_chttp2_client_insecure", 
       "grpc_transport_chttp2_client_secure", 
       "grpc_transport_chttp2_server_insecure", 
-      "grpc_transport_chttp2_server_secure"
+      "grpc_transport_chttp2_server_secure", 
+      "grpc_workaround_cronet_compression_filter"
     ], 
     "headers": [], 
     "is_filegroup": false, 
@@ -5868,8 +5906,10 @@
       "grpc_resolver_dns_ares", 
       "grpc_resolver_dns_native", 
       "grpc_resolver_sockaddr", 
+      "grpc_server_backward_compatibility", 
       "grpc_transport_chttp2_client_insecure", 
-      "grpc_transport_chttp2_server_insecure"
+      "grpc_transport_chttp2_server_insecure", 
+      "grpc_workaround_cronet_compression_filter"
     ], 
     "headers": [], 
     "is_filegroup": false, 
@@ -7402,6 +7442,7 @@
       "test/core/end2end/tests/simple_request.c", 
       "test/core/end2end/tests/streaming_error_response.c", 
       "test/core/end2end/tests/trailing_metadata.c", 
+      "test/core/end2end/tests/workaround_cronet_compression.c", 
       "test/core/end2end/tests/write_buffering.c", 
       "test/core/end2end/tests/write_buffering_at_end.c"
     ], 
@@ -7477,6 +7518,7 @@
       "test/core/end2end/tests/simple_request.c", 
       "test/core/end2end/tests/streaming_error_response.c", 
       "test/core/end2end/tests/trailing_metadata.c", 
+      "test/core/end2end/tests/workaround_cronet_compression.c", 
       "test/core/end2end/tests/write_buffering.c", 
       "test/core/end2end/tests/write_buffering_at_end.c"
     ], 
@@ -7746,6 +7788,7 @@
       "include/grpc/slice.h", 
       "include/grpc/slice_buffer.h", 
       "include/grpc/status.h", 
+      "include/grpc/support/workaround_list.h", 
       "src/core/lib/channel/channel_args.h", 
       "src/core/lib/channel/channel_stack.h", 
       "src/core/lib/channel/channel_stack_builder.h", 
@@ -7873,6 +7916,7 @@
       "include/grpc/slice.h", 
       "include/grpc/slice_buffer.h", 
       "include/grpc/status.h", 
+      "include/grpc/support/workaround_list.h", 
       "src/core/lib/channel/channel_args.c", 
       "src/core/lib/channel/channel_args.h", 
       "src/core/lib/channel/channel_stack.c", 
@@ -7925,6 +7969,7 @@
       "src/core/lib/iomgr/ev_poll_posix.h", 
       "src/core/lib/iomgr/ev_posix.c", 
       "src/core/lib/iomgr/ev_posix.h", 
+      "src/core/lib/iomgr/ev_windows.c", 
       "src/core/lib/iomgr/exec_ctx.c", 
       "src/core/lib/iomgr/exec_ctx.h", 
       "src/core/lib/iomgr/executor.c", 
@@ -8557,6 +8602,24 @@
   }, 
   {
     "deps": [
+      "gpr", 
+      "grpc_base"
+    ], 
+    "headers": [
+      "src/core/ext/filters/workarounds/workaround_utils.h"
+    ], 
+    "is_filegroup": true, 
+    "language": "c", 
+    "name": "grpc_server_backward_compatibility", 
+    "src": [
+      "src/core/ext/filters/workarounds/workaround_utils.c", 
+      "src/core/ext/filters/workarounds/workaround_utils.h"
+    ], 
+    "third_party": false, 
+    "type": "filegroup"
+  }, 
+  {
+    "deps": [
       "gpr_test_util", 
       "grpc"
     ], 
@@ -8867,6 +8930,25 @@
     "type": "filegroup"
   }, 
   {
+    "deps": [
+      "gpr", 
+      "grpc_base", 
+      "grpc_server_backward_compatibility"
+    ], 
+    "headers": [
+      "src/core/ext/filters/workarounds/workaround_cronet_compression_filter.h"
+    ], 
+    "is_filegroup": true, 
+    "language": "c", 
+    "name": "grpc_workaround_cronet_compression_filter", 
+    "src": [
+      "src/core/ext/filters/workarounds/workaround_cronet_compression_filter.c", 
+      "src/core/ext/filters/workarounds/workaround_cronet_compression_filter.h"
+    ], 
+    "third_party": false, 
+    "type": "filegroup"
+  }, 
+  {
     "deps": [], 
     "headers": [
       "third_party/nanopb/pb.h", 
diff --git a/tools/run_tests/generated/tests.json b/tools/run_tests/generated/tests.json
index 48f24ab623..d1e3a99a08 100644
--- a/tools/run_tests/generated/tests.json
+++ b/tools/run_tests/generated/tests.json
@@ -2805,7 +2805,7 @@
   }, 
   {
     "args": [
-      "--benchmark_min_time=0"
+      "--benchmark_min_time=4"
     ], 
     "ci_platforms": [
       "linux", 
@@ -7077,6 +7077,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_census_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -8277,6 +8300,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_compress_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -9449,6 +9495,28 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_fakesec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -10505,6 +10573,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_fd_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -11728,6 +11819,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -12743,6 +12857,25 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+pipe_test", 
+    "platforms": [
+      "linux"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -13912,6 +14045,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+trace_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -13963,6 +14119,1252 @@
     "ci_platforms": [
       "windows", 
       "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "bad_hostname"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "binary_metadata"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "call_creds"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "cancel_after_accept"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "cancel_after_client_done"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "cancel_after_invoke"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "cancel_before_invoke"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "cancel_in_a_vacuum"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "cancel_with_status"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "compressed_payload"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
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+    "args": [
+      "write_buffering_at_end"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "authority_not_supported"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
       "posix"
     ], 
     "cpu_cost": 1.0, 
@@ -15182,6 +16584,30 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_http_proxy_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -16407,6 +17833,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_load_reporting_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -17677,6 +19126,30 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_oauth2_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -18709,6 +20182,30 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_proxy_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -19813,6 +21310,30 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -20845,6 +22366,30 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair+trace_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -22011,6 +23556,32 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [
+      "msan"
+    ], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair_1byte_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -23240,6 +24811,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_ssl_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -24463,6 +26057,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_ssl_cert_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -25493,6 +27110,30 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_ssl_proxy_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -26691,6 +28332,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_uds_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -27891,6 +29555,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_census_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -29068,6 +30755,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_compress_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -30103,6 +31813,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_fd_nosec_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -31303,6 +33036,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -32299,6 +34055,25 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+pipe_nosec_test", 
+    "platforms": [
+      "linux"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -33445,6 +35220,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+trace_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -33496,6 +35294,1229 @@
     "ci_platforms": [
       "windows", 
       "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "bad_hostname"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "binary_metadata"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+workarounds_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "cancel_after_accept"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
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+    "exclude_iomgrs": [], 
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+    "language": "c", 
+    "name": "h2_full+workarounds_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "cancel_after_client_done"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
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+    "exclude_configs": [], 
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+    "language": "c", 
+    "name": "h2_full+workarounds_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
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+  {
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+      "cancel_after_invoke"
+    ], 
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+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
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+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
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+    ], 
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+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
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+    "name": "h2_full+workarounds_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
+      "cancel_in_a_vacuum"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
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+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
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+    "args": [
+      "cancel_with_status"
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+      "windows", 
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+      "mac", 
+      "posix"
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+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
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+  {
+    "args": [
+      "compressed_payload"
+    ], 
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+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
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+    "platforms": [
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+      "linux", 
+      "mac", 
+      "posix"
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+    "args": [
+      "connectivity"
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+      "mac", 
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+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
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+      "default_host"
+    ], 
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+    "platforms": [
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+      "linux", 
+      "mac", 
+      "posix"
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+      "disappearing_server"
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+      "posix"
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+      "mac", 
+      "posix"
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+      "mac", 
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@@ -34691,6 +37712,30 @@
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@@ -35893,6 +38938,29 @@
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@@ -36899,6 +39967,30 @@
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@@ -37979,6 +41071,30 @@
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@@ -38987,6 +42103,30 @@
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+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair+trace_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -40127,6 +43267,32 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [
+      "msan"
+    ], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_sockpair_1byte_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -41306,6 +44472,29 @@
   }, 
   {
     "args": [
+      "workaround_cronet_compression"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_uds_nosec_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "write_buffering"
     ], 
     "ci_platforms": [
@@ -41353,6 +44542,56 @@
   {
     "args": [
       "--scenarios_json", 
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_1channel_100rpcs_1MB\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 1048576, \"req_size\": 1048576}}, \"client_channels\": 1, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+    ], 
+    "boringssl": true, 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": "capacity", 
+    "defaults": "boringssl", 
+    "exclude_configs": [
+      "tsan", 
+      "asan"
+    ], 
+    "excluded_poll_engines": [], 
+    "flaky": false, 
+    "language": "c++", 
+    "name": "json_run_localhost", 
+    "platforms": [
+      "linux"
+    ], 
+    "shortname": "json_run_localhost:cpp_protobuf_async_unary_1channel_100rpcs_1MB", 
+    "timeout_seconds": 360
+  }, 
+  {
+    "args": [
+      "--scenarios_json", 
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_from_client_1channel_1MB\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 1048576, \"req_size\": 1048576}}, \"client_channels\": 1, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING_FROM_CLIENT\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+    ], 
+    "boringssl": true, 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": "capacity", 
+    "defaults": "boringssl", 
+    "exclude_configs": [
+      "tsan", 
+      "asan"
+    ], 
+    "excluded_poll_engines": [], 
+    "flaky": false, 
+    "language": "c++", 
+    "name": "json_run_localhost", 
+    "platforms": [
+      "linux"
+    ], 
+    "shortname": "json_run_localhost:cpp_protobuf_async_streaming_from_client_1channel_1MB", 
+    "timeout_seconds": 360
+  }, 
+  {
+    "args": [
+      "--scenarios_json", 
       "{\"scenarios\": [{\"name\": \"cpp_generic_async_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"bytebuf_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_GENERIC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"bytebuf_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
@@ -42911,6 +46150,82 @@
   {
     "args": [
       "--scenarios_json", 
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_unary_1channel_100rpcs_1MB\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 1048576, \"req_size\": 1048576}}, \"client_channels\": 1, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 100, \"rpc_type\": \"UNARY\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+    ], 
+    "boringssl": true, 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": "capacity", 
+    "defaults": "boringssl", 
+    "exclude_configs": [
+      "asan-noleaks", 
+      "asan-trace-cmp", 
+      "basicprof", 
+      "c++-compat", 
+      "counters", 
+      "dbg", 
+      "gcov", 
+      "helgrind", 
+      "lto", 
+      "memcheck", 
+      "msan", 
+      "mutrace", 
+      "opt", 
+      "stapprof", 
+      "ubsan"
+    ], 
+    "excluded_poll_engines": [], 
+    "flaky": false, 
+    "language": "c++", 
+    "name": "json_run_localhost", 
+    "platforms": [
+      "linux"
+    ], 
+    "shortname": "json_run_localhost:cpp_protobuf_async_unary_1channel_100rpcs_1MB_low_thread_count", 
+    "timeout_seconds": 360
+  }, 
+  {
+    "args": [
+      "--scenarios_json", 
+      "{\"scenarios\": [{\"name\": \"cpp_protobuf_async_streaming_from_client_1channel_1MB\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 0, \"security_params\": null, \"server_type\": \"ASYNC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": null, \"payload_config\": {\"simple_params\": {\"resp_size\": 1048576, \"req_size\": 1048576}}, \"client_channels\": 1, \"async_client_threads\": 0, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING_FROM_CLIENT\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
+    ], 
+    "boringssl": true, 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": "capacity", 
+    "defaults": "boringssl", 
+    "exclude_configs": [
+      "asan-noleaks", 
+      "asan-trace-cmp", 
+      "basicprof", 
+      "c++-compat", 
+      "counters", 
+      "dbg", 
+      "gcov", 
+      "helgrind", 
+      "lto", 
+      "memcheck", 
+      "msan", 
+      "mutrace", 
+      "opt", 
+      "stapprof", 
+      "ubsan"
+    ], 
+    "excluded_poll_engines": [], 
+    "flaky": false, 
+    "language": "c++", 
+    "name": "json_run_localhost", 
+    "platforms": [
+      "linux"
+    ], 
+    "shortname": "json_run_localhost:cpp_protobuf_async_streaming_from_client_1channel_1MB_low_thread_count", 
+    "timeout_seconds": 360
+  }, 
+  {
+    "args": [
+      "--scenarios_json", 
       "{\"scenarios\": [{\"name\": \"cpp_generic_async_streaming_ping_pong_secure\", \"warmup_seconds\": 0, \"benchmark_seconds\": 1, \"num_servers\": 1, \"server_config\": {\"async_server_threads\": 1, \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"bytebuf_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"server_type\": \"ASYNC_GENERIC_SERVER\"}, \"num_clients\": 1, \"client_config\": {\"client_type\": \"ASYNC_CLIENT\", \"security_params\": {\"use_test_ca\": true, \"server_host_override\": \"foo.test.google.fr\"}, \"payload_config\": {\"bytebuf_params\": {\"resp_size\": 0, \"req_size\": 0}}, \"client_channels\": 1, \"async_client_threads\": 1, \"outstanding_rpcs_per_channel\": 1, \"rpc_type\": \"STREAMING\", \"load_params\": {\"closed_loop\": {}}, \"histogram_params\": {\"max_possible\": 60000000000.0, \"resolution\": 0.01}}}]}"
     ], 
     "boringssl": true, 
diff --git a/tools/run_tests/helper_scripts/build_python.sh b/tools/run_tests/helper_scripts/build_python.sh
index 28397be13e..6ad285cdb9 100755
--- a/tools/run_tests/helper_scripts/build_python.sh
+++ b/tools/run_tests/helper_scripts/build_python.sh
@@ -187,7 +187,8 @@ $VENV_PYTHON $ROOT/src/python/grpcio_reflection/setup.py build_package_protos
 pip_install_dir $ROOT/src/python/grpcio_reflection
 
 # Build/install tests
-$VENV_PYTHON -m pip install coverage oauth2client
+$VENV_PYTHON -m pip install coverage==4.4 oauth2client==4.1.0 \
+                            google-auth==1.0.0 requests==2.14.2
 $VENV_PYTHON $ROOT/src/python/grpcio_tests/setup.py preprocess
 $VENV_PYTHON $ROOT/src/python/grpcio_tests/setup.py build_package_protos
 pip_install_dir $ROOT/src/python/grpcio_tests
diff --git a/tools/run_tests/performance/scenario_config.py b/tools/run_tests/performance/scenario_config.py
index 8ed675ecc3..c2ffd67dbf 100644
--- a/tools/run_tests/performance/scenario_config.py
+++ b/tools/run_tests/performance/scenario_config.py
@@ -112,6 +112,7 @@ def _ping_pong_scenario(name, rpc_type,
                         categories=DEFAULT_CATEGORIES,
                         channels=None,
                         outstanding=None,
+                        num_clients=None,
                         resource_quota_size=None,
                         messages_per_stream=None,
                         excluded_poll_engines=[]):
@@ -158,7 +159,7 @@ def _ping_pong_scenario(name, rpc_type,
     wide = channels if channels is not None else WIDE
     deep = int(math.ceil(1.0 * outstanding_calls / wide))
 
-    scenario['num_clients'] = 0  # use as many client as available.
+    scenario['num_clients'] = num_clients if num_clients is not None else 0  # use as many clients as available.
     scenario['client_config']['outstanding_rpcs_per_channel'] = deep
     scenario['client_config']['client_channels'] = wide
     scenario['client_config']['async_client_threads'] = 0
@@ -196,6 +197,24 @@ class CXXLanguage:
 
   def scenarios(self):
     # TODO(ctiller): add 70% load latency test
+    yield _ping_pong_scenario(
+      'cpp_protobuf_async_unary_1channel_100rpcs_1MB', rpc_type='UNARY',
+      client_type='ASYNC_CLIENT', server_type='ASYNC_SERVER',
+      req_size=1024*1024, resp_size=1024*1024,
+      unconstrained_client='async', outstanding=100, channels=1,
+      num_clients=1,
+      secure=False,
+      categories=[SMOKETEST] + [SCALABLE])
+
+    yield _ping_pong_scenario(
+      'cpp_protobuf_async_streaming_from_client_1channel_1MB', rpc_type='STREAMING_FROM_CLIENT',
+      client_type='ASYNC_CLIENT', server_type='ASYNC_SERVER',
+      req_size=1024*1024, resp_size=1024*1024,
+      unconstrained_client='async', outstanding=1, channels=1,
+      num_clients=1,
+      secure=False,
+      categories=[SMOKETEST] + [SCALABLE])
+
     for secure in [True, False]:
       secstr = 'secure' if secure else 'insecure'
       smoketest_categories = ([SMOKETEST] if secure else []) + [SCALABLE]
diff --git a/tools/run_tests/python_utils/jobset.py b/tools/run_tests/python_utils/jobset.py
index 4e97128d46..3754035308 100755
--- a/tools/run_tests/python_utils/jobset.py
+++ b/tools/run_tests/python_utils/jobset.py
@@ -225,6 +225,22 @@ class JobResult(object):
     self.cpu_estimated = 1
     self.cpu_measured = 0
 
+
+def eintr_be_gone(fn):
+  """Run fn until it doesn't stop because of EINTR"""
+  while True:
+    try:
+      return fn()
+    except IOError, e:
+      if e.errno != errno.EINTR:
+        raise
+
+
+def read_from_start(f):
+  f.seek(0)
+  return f.read()
+
+
 class Job(object):
   """Manages one job."""
 
@@ -255,7 +271,7 @@ class Job(object):
     self._start = time.time()
     cmdline = self._spec.cmdline
     if measure_cpu_costs:
-      cmdline = ['time', '--portability'] + cmdline
+      cmdline = ['time', '-p'] + cmdline
     try_start = lambda: subprocess.Popen(args=cmdline,
                                          stderr=subprocess.STDOUT,
                                          stdout=self._tempfile,
@@ -278,8 +294,7 @@ class Job(object):
   def state(self):
     """Poll current state of the job. Prints messages at completion."""
     def stdout(self=self):
-      self._tempfile.seek(0)
-      stdout = self._tempfile.read()
+      stdout = read_from_start(self._tempfile)
       self.result.message = stdout[-_MAX_RESULT_SIZE:]
       return stdout
     if self._state == _RUNNING and self._process.poll() is not None:
@@ -307,7 +322,7 @@ class Job(object):
         self._state = _SUCCESS
         measurement = ''
         if measure_cpu_costs:
-          m = re.search(r'real ([0-9.]+)\nuser ([0-9.]+)\nsys ([0-9.]+)', stdout())
+          m = re.search(r'real\s+([0-9.]+)\nuser\s+([0-9.]+)\nsys\s+([0-9.]+)', stdout())
           real = float(m.group(1))
           user = float(m.group(2))
           sys = float(m.group(3))
@@ -415,7 +430,7 @@ class Jobset(object):
     while self._running:
       dead = set()
       for job in self._running:
-        st = job.state()
+        st = eintr_be_gone(lambda: job.state())
         if st == _RUNNING: continue
         if st == _FAILURE or st == _KILLED:
           self._failures += 1
diff --git a/tools/run_tests/run_interop_tests.py b/tools/run_tests/run_interop_tests.py
index 867d9e6f7b..ae2da26e1f 100755
--- a/tools/run_tests/run_interop_tests.py
+++ b/tools/run_tests/run_interop_tests.py
@@ -581,7 +581,7 @@ def auth_options(language, test_case):
   env = {}
 
   # TODO(jtattermusch): this file path only works inside docker
-  key_filepath = '/root/service_account/stubbyCloudTestingTest-ee3fce360ac5.json'
+  key_filepath = '/root/service_account/GrpcTesting-726eb1347f15.json'
   oauth_scope_arg = '--oauth_scope=https://www.googleapis.com/auth/xapi.zoo'
   key_file_arg = '--service_account_key_file=%s' % key_filepath
   default_account_arg = '--default_service_account=830293263384-compute@developer.gserviceaccount.com'
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 83a83948a5..568774cece 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -75,8 +75,9 @@ _FORCE_ENVIRON_FOR_WRAPPERS = {
 
 
 _POLLING_STRATEGIES = {
-  'linux': ['epollsig', 'poll', 'poll-cv']
+  'linux': ['epollsig', 'poll', 'poll-cv'],
 # TODO(ctiller, sreecha): enable epoll1, epollex, epoll-thread-pool
+  'mac': ['poll'],
 }
 
 
@@ -340,7 +341,8 @@ class CLanguage(object):
     if self.platform == 'windows':
       # don't build tools on windows just yet
       return ['buildtests_%s' % self.make_target]
-    return ['buildtests_%s' % self.make_target, 'tools_%s' % self.make_target]
+    return ['buildtests_%s' % self.make_target, 'tools_%s' % self.make_target,
+            'check_epollexclusive']
 
   def make_options(self):
     return self._make_options;
@@ -1438,6 +1440,9 @@ def _has_epollexclusive():
     return True
   except subprocess.CalledProcessError, e:
     return False
+  except OSError, e:
+    # For languages other than C and Windows the binary won't exist
+    return False
 
 
 # returns a list of things that failed (or an empty list on success)
@@ -1457,7 +1462,7 @@ def _build_and_run(
                                            suite_name=args.report_suite_name)
     return []
 
-  if not args.travis and not _has_epollexclusive() and 'epollex' in _POLLING_STRATEGIES[platform_string()]:
+  if not args.travis and not _has_epollexclusive() and platform_string() in _POLLING_STRATEGIES and 'epollex' in _POLLING_STRATEGIES[platform_string()]:
     print('\n\nOmitting EPOLLEXCLUSIVE tests\n\n')
     _POLLING_STRATEGIES[platform_string()].remove('epollex')
 
diff --git a/tools/run_tests/task_runner.py b/tools/run_tests/task_runner.py
index 0ec7efbbee..7feac29673 100755
--- a/tools/run_tests/task_runner.py
+++ b/tools/run_tests/task_runner.py
@@ -40,6 +40,7 @@ import artifacts.artifact_targets as artifact_targets
 import artifacts.distribtest_targets as distribtest_targets
 import artifacts.package_targets as package_targets
 import python_utils.jobset as jobset
+import python_utils.report_utils as report_utils
 
 _TARGETS = []
 _TARGETS += artifact_targets.targets()
@@ -116,8 +117,10 @@ if not build_jobs:
   sys.exit(1)
 
 jobset.message('START', 'Building targets.', do_newline=True)
-num_failures, _ = jobset.run(
+num_failures, resultset = jobset.run(
     build_jobs, newline_on_success=True, maxjobs=args.jobs)
+report_utils.render_junit_xml_report(resultset, 'report_taskrunner_sponge_log.xml',
+                                     suite_name='tasks')
 if num_failures == 0:
   jobset.message('SUCCESS', 'All targets built successfully.',
                  do_newline=True)