All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=863326

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=bf6cc95812cf0430e99ecfb15aea9576f40df987bc0f1b7f4c34d357cadb56f2


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

health-plan-webview-low-end-phone

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8941131091967246368

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

Suspected Commit
  Author : Michael Thiessen
  Commit : d7ae73502ade3255987a4b5c72c5294c2c82896a
  Date   : Tue Jul 10 00:57:13 2018
  Subject: ALooper implementation for MessagePumpForUI::Schedule(Delayed)Work

Bisect Details
  Configuration: webview-low-end-phone-perf-bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_chrome:v8:allocated_objects_size_avg/browse_social/browse_social_facebook_infinite_scroll
  Change       : 1.80% | 19222430.0 -> 19567543.7143

Revision                                       Result                  N
android-chrome@96555ff9c3                      19222430 +- 247820      14      good
android-chrome@96555ff9c3,chromium@573466      19136633 +- 314643      9       good
android-chrome@96555ff9c3,chromium@573545      19304271 +- 193390      9       good
android-chrome@96555ff9c3,chromium@573565      19168561 +- 220776      14      good
android-chrome@96555ff9c3,chromium@573567      19288817 +- 324153      14      good
android-chrome@96555ff9c3,chromium@573569      19188410 +- 188686      6       good
android-chrome@96555ff9c3,chromium@573570      19710281 +- 467058      14      bad       <--
android-chrome@96555ff9c3,chromium@573575      19787122 +- 367220      9       bad
android-chrome@96555ff9c3,chromium@573584      19677674 +- 233207      14      bad
android-chrome@0c23a72c68                      19647519 +- 165408      9       bad
android-chrome@7b94b395a3                      19714178 +- 259753      6       bad
android-chrome@cd63705090                      19858500 +- 307000      6       bad
android-chrome@cb4b582a48                      19567544 +- 283667      14      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=browse.social.facebook.infinite.scroll 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/8941131091967246368


For feedback, file a bug with component Speed>Bisection