All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=860743

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=d8bfe94dc637b1dabebb7cd9e7822ef4e928799f161a6233b36b9407178e8044


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/8941731443832344688

=== 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_chrome:malloc:allocated_objects_size_avg/background_tools/background_tools_gmail
  Change       : 11.72% | 82083330.6667 -> 91701234.6667

Revision                                       Result                   N
android-chrome@99480dfb2c                      82083331 +- 351336       6      good
android-chrome@878f534e9f                      80998881 +- 239958       6      good
android-chrome@878f534e9f,chromium@572347      81006788 +- 244982       6      good
android-chrome@878f534e9f,chromium@572376      81947447 +- 397757       6      good
android-chrome@878f534e9f,chromium@572377      90651393 +- 1025264      6      bad       <--
android-chrome@878f534e9f,chromium@572378      90745352 +- 1135251      6      bad
android-chrome@878f534e9f,chromium@572380      91050487 +- 1486954      6      bad
android-chrome@878f534e9f,chromium@572383      90302669 +- 1035756      6      bad
android-chrome@878f534e9f,chromium@572390      91445323 +- 1142592      6      bad
android-chrome@4d11ebe3cf                      91277975 +- 926811       6      bad
android-chrome@22df6667c5                      91701235 +- 1011569      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/8941731443832344688


For feedback, file a bug with component Speed>Bisection