All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=860747

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=be1b8570d9f4cbcaa74eebd4f070ba8e84c4cbbacf92eb7d21b51121542915c1


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

health-plan-clankium-low-end-phone
perf-go-phone-1024
perf-go-phone-512

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8941731301762521648

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

Suspected Commit
  Author : Khushal
  Commit : db2d4ad73d521275dd1c97a7ebc8effce024f948
  Date   : Tue Jul 03 22:36:27 2018
  Subject: gpu: Share GrContext between RasterDecoders for OOP raster.

Bisect Details
  Configuration: go-phone-1024-perf-bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/background_tools/background_tools_gmail
  Change       : 38.50% | 25983537.3333 -> 35986822.6667

Revision                                       Result                   N
android-chrome@99480dfb2c                      25983537 +- 547612       6      good
android-chrome@878f534e9f                      24634925 +- 164890       6      good
android-chrome@878f534e9f,chromium@572347      24922328 +- 317605       6      good
android-chrome@878f534e9f,chromium@572376      26269916 +- 332188       6      good
android-chrome@878f534e9f,chromium@572377      33324589 +- 488565       6      bad       <--
android-chrome@878f534e9f,chromium@572378      32972333 +- 883806       6      bad
android-chrome@878f534e9f,chromium@572380      34704941 +- 891228       6      bad
android-chrome@878f534e9f,chromium@572383      33460440 +- 1012651      6      bad
android-chrome@878f534e9f,chromium@572390      34661254 +- 1279647      6      bad
android-chrome@4d11ebe3cf                      33583664 +- 957254       6      bad
android-chrome@22df6667c5                      35986823 +- 1097467      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-chrome --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=background.tools.gmail 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/8941731301762521648


For feedback, file a bug with component Speed>Bisection