Merge github.com:grpc/grpc into pollset_kick_stats

5 files changed, 1495 insertions, 233 deletions

diff --git a/tools/run_tests/performance/bq_upload_result.py b/tools/run_tests/performance/bq_upload_result.py
index 630ac23196..31819d6159 100755
--- a/tools/run_tests/performance/bq_upload_result.py
+++ b/tools/run_tests/performance/bq_upload_result.py
@@ -24,6 +24,7 @@ import os
 import sys
 import time
 import uuid
+import massage_qps_stats
 
 
 gcp_utils_dir = os.path.abspath(os.path.join(
@@ -117,6 +118,7 @@ def _flatten_result_inplace(scenario_result):
   scenario_result['serverCpuUsage'] = scenario_result['summary'].pop('serverCpuUsage', None)
   scenario_result['summary'].pop('successfulRequestsPerSecond', None)
   scenario_result['summary'].pop('failedRequestsPerSecond', None)
+  massage_qps_stats.massage_qps_stats(scenario_result)
 
 
 def _populate_metadata_inplace(scenario_result):
diff --git a/tools/run_tests/performance/massage_qps_stats.py b/tools/run_tests/performance/massage_qps_stats.py
new file mode 100644
index 0000000000..606660f700
--- /dev/null
+++ b/tools/run_tests/performance/massage_qps_stats.py
@@ -0,0 +1,141 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Autogenerated by tools/codegen/core/gen_stats_data.py
+
+import massage_qps_stats_helpers
+def massage_qps_stats(scenario_result):
+  for stats in scenario_result["serverStats"] + scenario_result["clientStats"]:
+    if "coreStats" not in stats: return
+    core_stats = stats["coreStats"]
+    del stats["coreStats"]
+    stats["core_client_calls_created"] = massage_qps_stats_helpers.counter(core_stats, "client_calls_created")
+    stats["core_server_calls_created"] = massage_qps_stats_helpers.counter(core_stats, "server_calls_created")
+    stats["core_syscall_poll"] = massage_qps_stats_helpers.counter(core_stats, "syscall_poll")
+    stats["core_syscall_wait"] = massage_qps_stats_helpers.counter(core_stats, "syscall_wait")
+    stats["core_pollset_kick"] = massage_qps_stats_helpers.counter(core_stats, "pollset_kick")
+    stats["core_pollset_kicked_without_poller"] = massage_qps_stats_helpers.counter(core_stats, "pollset_kicked_without_poller")
+    stats["core_pollset_kicked_again"] = massage_qps_stats_helpers.counter(core_stats, "pollset_kicked_again")
+    stats["core_pollset_kick_wakeup_fd"] = massage_qps_stats_helpers.counter(core_stats, "pollset_kick_wakeup_fd")
+    stats["core_pollset_kick_wakeup_cv"] = massage_qps_stats_helpers.counter(core_stats, "pollset_kick_wakeup_cv")
+    stats["core_pollset_kick_own_thread"] = massage_qps_stats_helpers.counter(core_stats, "pollset_kick_own_thread")
+    stats["core_histogram_slow_lookups"] = massage_qps_stats_helpers.counter(core_stats, "histogram_slow_lookups")
+    stats["core_syscall_write"] = massage_qps_stats_helpers.counter(core_stats, "syscall_write")
+    stats["core_syscall_read"] = massage_qps_stats_helpers.counter(core_stats, "syscall_read")
+    stats["core_tcp_backup_pollers_created"] = massage_qps_stats_helpers.counter(core_stats, "tcp_backup_pollers_created")
+    stats["core_tcp_backup_poller_polls"] = massage_qps_stats_helpers.counter(core_stats, "tcp_backup_poller_polls")
+    stats["core_http2_op_batches"] = massage_qps_stats_helpers.counter(core_stats, "http2_op_batches")
+    stats["core_http2_op_cancel"] = massage_qps_stats_helpers.counter(core_stats, "http2_op_cancel")
+    stats["core_http2_op_send_initial_metadata"] = massage_qps_stats_helpers.counter(core_stats, "http2_op_send_initial_metadata")
+    stats["core_http2_op_send_message"] = massage_qps_stats_helpers.counter(core_stats, "http2_op_send_message")
+    stats["core_http2_op_send_trailing_metadata"] = massage_qps_stats_helpers.counter(core_stats, "http2_op_send_trailing_metadata")
+    stats["core_http2_op_recv_initial_metadata"] = massage_qps_stats_helpers.counter(core_stats, "http2_op_recv_initial_metadata")
+    stats["core_http2_op_recv_message"] = massage_qps_stats_helpers.counter(core_stats, "http2_op_recv_message")
+    stats["core_http2_op_recv_trailing_metadata"] = massage_qps_stats_helpers.counter(core_stats, "http2_op_recv_trailing_metadata")
+    stats["core_http2_settings_writes"] = massage_qps_stats_helpers.counter(core_stats, "http2_settings_writes")
+    stats["core_http2_pings_sent"] = massage_qps_stats_helpers.counter(core_stats, "http2_pings_sent")
+    stats["core_http2_writes_begun"] = massage_qps_stats_helpers.counter(core_stats, "http2_writes_begun")
+    stats["core_http2_writes_offloaded"] = massage_qps_stats_helpers.counter(core_stats, "http2_writes_offloaded")
+    stats["core_http2_writes_continued"] = massage_qps_stats_helpers.counter(core_stats, "http2_writes_continued")
+    stats["core_http2_partial_writes"] = massage_qps_stats_helpers.counter(core_stats, "http2_partial_writes")
+    stats["core_combiner_locks_initiated"] = massage_qps_stats_helpers.counter(core_stats, "combiner_locks_initiated")
+    stats["core_combiner_locks_scheduled_items"] = massage_qps_stats_helpers.counter(core_stats, "combiner_locks_scheduled_items")
+    stats["core_combiner_locks_scheduled_final_items"] = massage_qps_stats_helpers.counter(core_stats, "combiner_locks_scheduled_final_items")
+    stats["core_combiner_locks_offloaded"] = massage_qps_stats_helpers.counter(core_stats, "combiner_locks_offloaded")
+    stats["core_executor_scheduled_short_items"] = massage_qps_stats_helpers.counter(core_stats, "executor_scheduled_short_items")
+    stats["core_executor_scheduled_long_items"] = massage_qps_stats_helpers.counter(core_stats, "executor_scheduled_long_items")
+    stats["core_executor_scheduled_to_self"] = massage_qps_stats_helpers.counter(core_stats, "executor_scheduled_to_self")
+    stats["core_executor_wakeup_initiated"] = massage_qps_stats_helpers.counter(core_stats, "executor_wakeup_initiated")
+    stats["core_executor_queue_drained"] = massage_qps_stats_helpers.counter(core_stats, "executor_queue_drained")
+    stats["core_executor_push_retries"] = massage_qps_stats_helpers.counter(core_stats, "executor_push_retries")
+    stats["core_server_requested_calls"] = massage_qps_stats_helpers.counter(core_stats, "server_requested_calls")
+    stats["core_server_slowpath_requests_queued"] = massage_qps_stats_helpers.counter(core_stats, "server_slowpath_requests_queued")
+    h = massage_qps_stats_helpers.histogram(core_stats, "call_initial_size")
+    stats["core_call_initial_size"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_call_initial_size_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_call_initial_size_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_call_initial_size_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_call_initial_size_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "poll_events_returned")
+    stats["core_poll_events_returned"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_poll_events_returned_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_poll_events_returned_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_poll_events_returned_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_poll_events_returned_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "tcp_write_size")
+    stats["core_tcp_write_size"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_tcp_write_size_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_tcp_write_size_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_tcp_write_size_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_tcp_write_size_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "tcp_write_iov_size")
+    stats["core_tcp_write_iov_size"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_tcp_write_iov_size_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_tcp_write_iov_size_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_tcp_write_iov_size_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_tcp_write_iov_size_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "tcp_read_size")
+    stats["core_tcp_read_size"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_tcp_read_size_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_tcp_read_size_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_tcp_read_size_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_tcp_read_size_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "tcp_read_offer")
+    stats["core_tcp_read_offer"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_tcp_read_offer_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_tcp_read_offer_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_tcp_read_offer_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_tcp_read_offer_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "tcp_read_offer_iov_size")
+    stats["core_tcp_read_offer_iov_size"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_tcp_read_offer_iov_size_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_tcp_read_offer_iov_size_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_tcp_read_offer_iov_size_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_tcp_read_offer_iov_size_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "http2_send_message_size")
+    stats["core_http2_send_message_size"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_http2_send_message_size_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_http2_send_message_size_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_http2_send_message_size_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_http2_send_message_size_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "http2_send_initial_metadata_per_write")
+    stats["core_http2_send_initial_metadata_per_write"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_http2_send_initial_metadata_per_write_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_http2_send_initial_metadata_per_write_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_http2_send_initial_metadata_per_write_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_http2_send_initial_metadata_per_write_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "http2_send_message_per_write")
+    stats["core_http2_send_message_per_write"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_http2_send_message_per_write_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_http2_send_message_per_write_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_http2_send_message_per_write_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_http2_send_message_per_write_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "http2_send_trailing_metadata_per_write")
+    stats["core_http2_send_trailing_metadata_per_write"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_http2_send_trailing_metadata_per_write_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_http2_send_trailing_metadata_per_write_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_http2_send_trailing_metadata_per_write_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_http2_send_trailing_metadata_per_write_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "http2_send_flowctl_per_write")
+    stats["core_http2_send_flowctl_per_write"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_http2_send_flowctl_per_write_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_http2_send_flowctl_per_write_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_http2_send_flowctl_per_write_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_http2_send_flowctl_per_write_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
+    h = massage_qps_stats_helpers.histogram(core_stats, "server_cqs_checked")
+    stats["core_server_cqs_checked"] = ",".join("%f" % x for x in h.buckets)
+    stats["core_server_cqs_checked_bkts"] = ",".join("%f" % x for x in h.boundaries)
+    stats["core_server_cqs_checked_50p"] = massage_qps_stats_helpers.percentile(h.buckets, 50, h.boundaries)
+    stats["core_server_cqs_checked_95p"] = massage_qps_stats_helpers.percentile(h.buckets, 95, h.boundaries)
+    stats["core_server_cqs_checked_99p"] = massage_qps_stats_helpers.percentile(h.buckets, 99, h.boundaries)
diff --git a/tools/run_tests/performance/massage_qps_stats_helpers.py b/tools/run_tests/performance/massage_qps_stats_helpers.py
new file mode 100644
index 0000000000..400a0c82bf
--- /dev/null
+++ b/tools/run_tests/performance/massage_qps_stats_helpers.py
@@ -0,0 +1,57 @@
+# Copyright 2017 gRPC authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import collections
+
+def _threshold_for_count_below(buckets, boundaries, count_below):
+  count_so_far = 0
+  for lower_idx in range(0, len(buckets)):
+    count_so_far += buckets[lower_idx]
+    if count_so_far >= count_below:
+      break
+  if count_so_far == count_below:
+    # this bucket hits the threshold exactly... we should be midway through
+    # any run of zero values following the bucket
+    for upper_idx in range(lower_idx + 1, num_buckets):
+      if buckets[upper_idx] != 0:
+        break
+    return (boundaries[lower_idx] + boundaries[upper_idx]) / 2.0
+  else:
+    # treat values as uniform throughout the bucket, and find where this value
+    # should lie
+    lower_bound = boundaries[lower_idx]
+    upper_bound = boundaries[lower_idx + 1]
+    return (upper_bound -
+           (upper_bound - lower_bound) * (count_so_far - count_below) /
+               float(buckets[lower_idx]))
+
+def percentile(buckets, pctl, boundaries):
+  return _threshold_for_count_below(
+      buckets, boundaries, sum(buckets) * pctl / 100.0)
+
+def counter(core_stats, name):
+  for stat in core_stats['metrics']:
+    if stat['name'] == name:
+      return int(stat.get('count', 0))
+
+Histogram = collections.namedtuple('Histogram', 'buckets boundaries')
+def histogram(core_stats, name):
+  for stat in core_stats['metrics']:
+    if stat['name'] == name:
+      buckets = []
+      boundaries = []
+      for b in stat['histogram']['buckets']:
+        buckets.append(int(b.get('count', 0)))
+        boundaries.append(int(b.get('start', 0)))
+  return Histogram(buckets=buckets, boundaries=boundaries)
diff --git a/tools/run_tests/performance/scenario_config.py b/tools/run_tests/performance/scenario_config.py
index cbcc4d0ecc..a7560400dd 100644
--- a/tools/run_tests/performance/scenario_config.py
+++ b/tools/run_tests/performance/scenario_config.py
@@ -453,6 +453,8 @@ class CXXLanguage:
               unconstrained_client=synchronicity,
               secure=secure,
               minimal_stack=not secure,
+              server_threads_per_cq=3,
+              client_threads_per_cq=3,
               categories=smoketest_categories+[SCALABLE])
 
           # TODO(vjpai): Re-enable this test. It has a lot of timeouts
diff --git a/tools/run_tests/performance/scenario_result_schema.json b/tools/run_tests/performance/scenario_result_schema.json
index d7e2e292a7..11f41ab012 100644
--- a/tools/run_tests/performance/scenario_result_schema.json
+++ b/tools/run_tests/performance/scenario_result_schema.json
@@ -1,269 +1,1329 @@
 [
   {
-    "name": "metadata",
-    "type": "RECORD",
-    "mode": "NULLABLE",
     "fields": [
       {
-        "name": "buildNumber",
-        "type": "INTEGER",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "buildUrl",
-        "type": "STRING",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "jobName",
-        "type": "STRING",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "gitCommit",
-        "type": "STRING",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "gitActualCommit",
-        "type": "STRING",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "created",
-        "type": "TIMESTAMP",
-        "mode": "NULLABLE"
+        "mode": "NULLABLE", 
+        "name": "buildNumber", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "buildUrl", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "jobName", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "gitCommit", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "gitActualCommit", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "created", 
+        "type": "TIMESTAMP"
       }
-    ]
-  },
+    ], 
+    "mode": "NULLABLE", 
+    "name": "metadata", 
+    "type": "RECORD"
+  }, 
   {
-    "name": "scenario",
-    "type": "RECORD",
-    "mode": "NULLABLE",
     "fields": [
       {
-        "name": "name",
-        "type": "STRING",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "clientConfig",
-        "type": "STRING",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "numClients",
-        "type": "INTEGER",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "serverConfig",
-        "type": "STRING",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "numServers",
-        "type": "INTEGER",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "warmupSeconds",
-        "type": "INTEGER",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "benchmarkSeconds",
-        "type": "INTEGER",
-        "mode": "NULLABLE"
+        "mode": "NULLABLE", 
+        "name": "name", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "clientConfig", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "numClients", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "serverConfig", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "numServers", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "warmupSeconds", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "benchmarkSeconds", 
+        "type": "INTEGER"
       }
-    ]
-  },
+    ], 
+    "mode": "NULLABLE", 
+    "name": "scenario", 
+    "type": "RECORD"
+  }, 
   {
-    "name": "latencies",
-    "type": "STRING",
-    "mode": "NULLABLE"
-  },
+    "mode": "NULLABLE", 
+    "name": "latencies", 
+    "type": "STRING"
+  }, 
   {
-    "name": "clientStats",
-    "type": "RECORD",
-    "mode": "REPEATED",
     "fields": [
       {
-        "name": "latencies",
-        "type": "STRING",
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-        "mode": "NULLABLE"
-      },
-      {
-        "name": "cqPollCount",
-        "type": "INTEGER",
-        "mode": "NULLABLE"
+        "mode": "NULLABLE", 
+        "name": "latencies", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "timeElapsed", 
+        "type": "FLOAT"
+      }, 
+      {
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+        "name": "timeUser", 
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+      }, 
+      {
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+        "name": "cqPollCount", 
+        "type": "INTEGER"
+      }, 
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+        "type": "INTEGER"
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+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_calls_created", 
+        "type": "INTEGER"
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+        "name": "core_syscall_poll", 
+        "type": "INTEGER"
+      }, 
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+        "name": "core_syscall_wait", 
+        "type": "INTEGER"
+      }, 
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+        "mode": "NULLABLE", 
+        "name": "core_pollset_kick", 
+        "type": "INTEGER"
+      }, 
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+        "mode": "NULLABLE", 
+        "name": "core_pollset_kicked_without_poller", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_pollset_kicked_again", 
+        "type": "INTEGER"
+      }, 
+      {
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+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
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+        "type": "INTEGER"
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+        "name": "core_pollset_kick_own_thread", 
+        "type": "INTEGER"
+      }, 
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+        "name": "core_histogram_slow_lookups", 
+        "type": "INTEGER"
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+        "type": "INTEGER"
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+        "type": "INTEGER"
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+        "type": "INTEGER"
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+        "name": "core_http2_op_cancel", 
+        "type": "INTEGER"
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+        "type": "INTEGER"
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+        "name": "core_http2_op_recv_initial_metadata", 
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+        "type": "INTEGER"
+      }, 
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+        "name": "core_http2_settings_writes", 
+        "type": "INTEGER"
+      }, 
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+        "mode": "NULLABLE", 
+        "name": "core_http2_pings_sent", 
+        "type": "INTEGER"
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+        "name": "core_http2_writes_begun", 
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+        "type": "INTEGER"
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+        "name": "core_http2_writes_continued", 
+        "type": "INTEGER"
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+        "name": "core_http2_partial_writes", 
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+        "type": "INTEGER"
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+        "type": "INTEGER"
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+        "type": "INTEGER"
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+        "name": "core_combiner_locks_offloaded", 
+        "type": "INTEGER"
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+        "type": "INTEGER"
+      }, 
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+        "type": "INTEGER"
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+        "name": "core_executor_scheduled_to_self", 
+        "type": "INTEGER"
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+        "type": "INTEGER"
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+      {
+        "mode": "NULLABLE", 
+        "name": "core_executor_queue_drained", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_executor_push_retries", 
+        "type": "INTEGER"
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+        "name": "core_server_requested_calls", 
+        "type": "INTEGER"
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+        "name": "core_server_slowpath_requests_queued", 
+        "type": "INTEGER"
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+        "type": "STRING"
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+        "name": "core_call_initial_size_bkts", 
+        "type": "STRING"
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+        "name": "core_call_initial_size_50p", 
+        "type": "FLOAT"
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+        "name": "core_call_initial_size_95p", 
+        "type": "FLOAT"
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+        "name": "core_call_initial_size_99p", 
+        "type": "FLOAT"
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+        "name": "core_poll_events_returned", 
+        "type": "STRING"
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+        "name": "core_poll_events_returned_bkts", 
+        "type": "STRING"
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+        "name": "core_poll_events_returned_50p", 
+        "type": "FLOAT"
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+      {
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+        "name": "core_poll_events_returned_95p", 
+        "type": "FLOAT"
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+      {
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+        "name": "core_poll_events_returned_99p", 
+        "type": "FLOAT"
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+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size_99p", 
+        "type": "FLOAT"
+      }, 
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+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked_99p", 
+        "type": "FLOAT"
       }
-    ]
-  },
+    ], 
+    "mode": "REPEATED", 
+    "name": "clientStats", 
+    "type": "RECORD"
+  }, 
   {
-    "name": "serverStats",
-    "type": "RECORD",
-    "mode": "REPEATED",
     "fields": [
       {
-        "name": "timeElapsed",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
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+        "name": "timeElapsed", 
+        "type": "FLOAT"
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       {
-        "name": "timeUser",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
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+        "name": "timeUser", 
+        "type": "FLOAT"
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       {
-        "name": "timeSystem",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
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+        "name": "timeSystem", 
+        "type": "FLOAT"
+      }, 
       {
-        "name": "cqPollCount",
-        "type": "INTEGER",
-        "mode": "NULLABLE"
+        "mode": "NULLABLE", 
+        "name": "cqPollCount", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_client_calls_created", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_calls_created", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_syscall_poll", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_syscall_wait", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_pollset_kick", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_pollset_kicked_without_poller", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_pollset_kicked_again", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_pollset_kick_wakeup_fd", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_pollset_kick_wakeup_cv", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_pollset_kick_own_thread", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_histogram_slow_lookups", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_syscall_write", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_syscall_read", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_backup_pollers_created", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_backup_poller_polls", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_op_batches", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_op_cancel", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_op_send_initial_metadata", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_op_send_message", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_op_send_trailing_metadata", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_op_recv_initial_metadata", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_op_recv_message", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_op_recv_trailing_metadata", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_settings_writes", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_pings_sent", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_writes_begun", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_writes_offloaded", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_writes_continued", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_partial_writes", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_combiner_locks_initiated", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_combiner_locks_scheduled_items", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_combiner_locks_scheduled_final_items", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_combiner_locks_offloaded", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_executor_scheduled_short_items", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_executor_scheduled_long_items", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_executor_scheduled_to_self", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_executor_wakeup_initiated", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_executor_queue_drained", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_executor_push_retries", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_requested_calls", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_slowpath_requests_queued", 
+        "type": "INTEGER"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_call_initial_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_call_initial_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_call_initial_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_call_initial_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_call_initial_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_poll_events_returned", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_poll_events_returned_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_poll_events_returned_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_poll_events_returned_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_poll_events_returned_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_write_iov_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_tcp_read_offer_iov_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_size_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_initial_metadata_per_write_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_message_per_write_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_trailing_metadata_per_write_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_http2_send_flowctl_per_write_99p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked_bkts", 
+        "type": "STRING"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked_50p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked_95p", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "core_server_cqs_checked_99p", 
+        "type": "FLOAT"
       }
-    ]
-  },
+    ], 
+    "mode": "REPEATED", 
+    "name": "serverStats", 
+    "type": "RECORD"
+  }, 
   {
-    "name": "serverCores",
-    "type": "STRING",
-    "mode": "NULLABLE"
-  },
+    "mode": "NULLABLE", 
+    "name": "serverCores", 
+    "type": "STRING"
+  }, 
   {
-    "name": "summary",
-    "type": "RECORD",
-    "mode": "NULLABLE",
     "fields": [
       {
-        "name": "qps",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "qpsPerServerCore",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "serverSystemTime",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "serverUserTime",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "clientSystemTime",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "clientUserTime",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "latency50",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "latency90",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "latency95",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "latency99",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "latency999",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "clientPollsPerRequest",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "serverPollsPerRequest",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "serverQueriesPerCpuSec",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
-      },
-      {
-        "name": "clientQueriesPerCpuSec",
-        "type": "FLOAT",
-        "mode": "NULLABLE"
+        "mode": "NULLABLE", 
+        "name": "qps", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "qpsPerServerCore", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "serverSystemTime", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "serverUserTime", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "clientSystemTime", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "clientUserTime", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "latency50", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "latency90", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "latency95", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "latency99", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "latency999", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "clientPollsPerRequest", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "serverPollsPerRequest", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "serverQueriesPerCpuSec", 
+        "type": "FLOAT"
+      }, 
+      {
+        "mode": "NULLABLE", 
+        "name": "clientQueriesPerCpuSec", 
+        "type": "FLOAT"
       }
-    ]
-  },
+    ], 
+    "mode": "NULLABLE", 
+    "name": "summary", 
+    "type": "RECORD"
+  }, 
   {
-    "name": "clientSuccess",
-    "type": "STRING",
-    "mode": "NULLABLE"
-  },
+    "mode": "NULLABLE", 
+    "name": "clientSuccess", 
+    "type": "STRING"
+  }, 
   {
-    "name": "serverSuccess",
-    "type": "STRING",
-    "mode": "NULLABLE"
-  },
+    "mode": "NULLABLE", 
+    "name": "serverSuccess", 
+    "type": "STRING"
+  }, 
   {
-    "name": "requestResults",
-    "type": "STRING",
-    "mode": "NULLABLE"
-  },
+    "mode": "NULLABLE", 
+    "name": "requestResults", 
+    "type": "STRING"
+  }, 
   {
-    "name": "serverCpuStats",
-    "type": "RECORD",
-    "mode": "REPEATED",
     "fields": [
       {
-        "name": "totalCpuTime",
-        "type": "INTEGER",
-        "mode": "NULLABLE"
-      },
+        "mode": "NULLABLE", 
+        "name": "totalCpuTime", 
+        "type": "INTEGER"
+      }, 
       {
-        "name": "idleCpuTime",
-        "type": "INTEGER",
-        "mode": "NULLABLE"
+        "mode": "NULLABLE", 
+        "name": "idleCpuTime", 
+        "type": "INTEGER"
       }
-    ]
-  },
+    ], 
+    "mode": "REPEATED", 
+    "name": "serverCpuStats", 
+    "type": "RECORD"
+  }, 
   {
-    "name": "serverCpuUsage",
-    "type": "FLOAT",
-    "mode": "NULLABLE"
+    "mode": "NULLABLE", 
+    "name": "serverCpuUsage", 
+    "type": "FLOAT"
   }
-]
+]
\ No newline at end of file