All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=860745

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=39357825ee4244fb6d459f36f3f5091377e5b28f164285b957dbbe42924092c0


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/8941731376329004736

=== 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    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:private_footprint_size_avg/background/after_https_m_facebook_com_rihanna
  Change       : 12.07% | 38055253.3333 -> 42648234.6667

Revision                                       Result                  N
android-chrome@99480dfb2c                      38055253 +- 250029      6      good
android-chrome@878f534e9f                      37738496 +- 286120      6      good
android-chrome@878f534e9f,chromium@572347      37721429 +- 505511      6      good
android-chrome@878f534e9f,chromium@572376      37644288 +- 447202      6      good
android-chrome@878f534e9f,chromium@572377      42718549 +- 517555      6      bad       <--
android-chrome@878f534e9f,chromium@572378      42947243 +- 284599      6      bad
android-chrome@878f534e9f,chromium@572380      42745173 +- 285423      6      bad
android-chrome@878f534e9f,chromium@572383      42859179 +- 536846      6      bad
android-chrome@878f534e9f,chromium@572390      42668715 +- 588477      6      bad
android-chrome@4d11ebe3cf                      42851669 +- 360564      6      bad
android-chrome@22df6667c5                      42648235 +- 377272      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=https.m.facebook.com.rihanna memory.top_10_mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8941731376329004736


For feedback, file a bug with component Speed>Bisection