All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=768336

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=2ba99eed55e26681b6c739ba66bddef2db47577b4f06c02bc2f24f7b607a8b27


Bot(s) for this bug's original alert(s):

android-webview-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8967482477794804992

=== Auto-CCing suspected CL author bcwhite@chromium.org ===

Hi bcwhite@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : Brian White
  Commit : 7ac4e75787ae3b44a33026e4e3671410c81a273c
  Date   : Sun Sep 24 04:33:45 2017
  Subject: Validate histograms around IPC calls on Android.

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : thread_times.key_silk_cases
  Metric       : thread_total_fast_path_cpu_time_per_frame/http___www.google.com__q_google
  Change       : 23.75% | 28.8654380604 -> 35.7195805556

Revision             Result                  N
chromium@503949      28.8654 +- 2.87344      6      good
chromium@503950      28.7269 +- 1.98012      6      good
chromium@503951      35.7196 +- 3.10754      6      bad       <--

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...www.google.com..q.google thread_times.key_silk_cases

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8967482477794804992


For feedback, file a bug with component Speed>Bisection

This is expected.  That CL is for a one-time Canary build on Android, after which it will be reverted.  It's intent is to gather information for fixing the Android Core Trampler: https://bugs.chromium.org/p/chromium/issues/detail?id=736675

 Issue 768337  has been merged into this issue.

 Issue 768527  has been merged into this issue.

 Issue 768549  has been merged into this issue.

 Issue 768544  has been merged into this issue.

Reverted last week.