All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=860752

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=fe57ee3a27a2265f9d0dfc1e5890983f6336902ffdc4736cb0165d0086071610


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

perf-go-phone-1024
perf-go-phone-512

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8941730610850076768

=== 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:private_dirty_size_avg/background_tools/background_tools_gmail
  Change       : 25.51% | 32867889.3333 -> 41251036.0

Revision                                       Result                   N
android-chrome@99480dfb2c                      32867889 +- 585763       6      good
android-chrome@878f534e9f                      31396739 +- 289381       6      good
android-chrome@878f534e9f,chromium@572347      31544195 +- 375328       6      good
android-chrome@878f534e9f,chromium@572376      32759345 +- 319923       6      good
android-chrome@878f534e9f,chromium@572377      39826989 +- 740906       6      bad       <--
android-chrome@878f534e9f,chromium@572378      40000387 +- 848490       6      bad
android-chrome@878f534e9f,chromium@572380      40852355 +- 1545548      6      bad
android-chrome@878f534e9f,chromium@572383      40357421 +- 1337996      6      bad
android-chrome@878f534e9f,chromium@572390      41341830 +- 1721415      6      bad
android-chrome@4d11ebe3cf                      41864069 +- 2010665      6      bad
android-chrome@22df6667c5                      41251036 +- 681238       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/8941730610850076768


For feedback, file a bug with component Speed>Bisection