All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=753954

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e9c1b2caba03aeafae93b2a56a830a4ff275b853591864a572afd49e874c9ab0


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

android-nexus5X
android-webview-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971704189060786960

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

Suspected Commit
  Author : Ulan Degenbaev
  Commit : 774a4c5e240569b551cc9d19ae8cac146891d4c4
  Date   : Fri Jul 28 19:42:31 2017
  Subject: Revert "[heap] Reland "[heap] Allow a minimum semi-space size of 512K.""

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/load_games/load_games_bubbles
  Change       : 3.42% | 40217276.0 -> 41591484.0

Revision                           Result                   N
chromium@490643                    40217276 +- 764707       6      good
chromium@490649                    40707658 +- 1288219      9      good
chromium@490652                    40661351 +- 843333       6      good
chromium@490652,v8@59ddd6061c      40681148 +- 646414       6      good
chromium@490652,v8@e567dd3ab4      40718524 +- 653754       6      good
chromium@490652,v8@774a4c5e24      41438225 +- 422828       6      bad       <--
chromium@490652,v8@4a9718c777      41586535 +- 417049       6      bad
chromium@490653                    41471562 +- 674863       9      bad
chromium@490654                    41579537 +- 661939       6      bad
chromium@490665                    41518268 +- 333106       6      bad
chromium@490686                    41323879 +- 738176       6      bad
chromium@490729                    41591484 +- 972806       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-chromium --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/8971704189060786960


For feedback, file a bug with component Speed>Bisection