All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=867033

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=ad431a37aaaa7b9263846759e149a8246a530950ec7d3b66c918560454ba3d78


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

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

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8940091797845158944

=== Auto-CCing suspected CL author enne@chromium.org ===

Hi enne@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Adrienne Walker
  Commit : f973fceec6e8eec76f90fa30d33a9a3c13aebf24
  Date   : Wed Jul 18 20:08:24 2018
  Subject: Free fewer resources when idle in oop raster

Bisect Details
  Configuration: clankium-phone-perf-bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size_avg/browse_news/browse_news_qq
  Change       : 9.97% | 36805720.0 -> 40476930.6667

Revision                                       Result                  N
android-chrome@cd22f0f943                      36805720 +- 380381      6      good
android-chrome@cd22f0f943,chromium@576157      36821080 +- 160582      6      good
android-chrome@cd22f0f943,chromium@576174      36799747 +- 425927      6      good
android-chrome@cd22f0f943,chromium@576178      36851288 +- 273541      6      good
android-chrome@cd22f0f943,chromium@576179      36718168 +- 242360      6      good
android-chrome@cd22f0f943,chromium@576180      40738392 +- 191987      6      bad       <--
android-chrome@cd22f0f943,chromium@576182      40682243 +- 239960      6      bad
android-chrome@cd22f0f943,chromium@576190      40904451 +- 251714      6      bad
android-chrome@c0e3d62ff2                      40476931 +- 198264      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=browse.news.qq 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/8940091797845158944


For feedback, file a bug with component Speed>Bisection