All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=774071

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c64d64e73c2207fb6cde0967ea0bb5bebce8ca84df7aca90c402170a689255bc


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

android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8965933584897946448

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

Hi ccameron@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 : Christopher Cameron
  Commit : 7ad584b2ad8cc768d46051d9933a3bb5a4ce06d4
  Date   : Mon Oct 09 21:27:21 2017
  Subject: canvas: Fix default values for color space

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:proportional_resident_size_avg/load_games/load_games_bubbles
  Change       : 1.35% | 91572596.0 -> 92812489.3333

Revision             Result                   N
chromium@507455      91572596 +- 1019374      6      good
chromium@507487      91673744 +- 1458746      9      good
chromium@507491      91993631 +- 693623       6      good
chromium@507492      93386612 +- 845629       6      bad       <--
chromium@507493      93656265 +- 969019       6      bad
chromium@507495      93105524 +- 1255842      6      bad
chromium@507503      92992713 +- 1488634      6      bad
chromium@507519      92812489 +- 1282676      6      bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

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=load.games.bubbles system_health.memory_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8965933584897946448


For feedback, file a bug with component Speed>Bisection

 Issue 773714  has been merged into this issue.

 Issue 774087  has been merged into this issue.

Issue 774073 has been merged into this issue.

That patch is essentially a revert of r494067 (from 2017.08.14). Any performance regressions should be returning to their previous levels.