All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=739878

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=043ac0fc3c2e7b8beddeec0934783924f6f5a69a771f41d94ec8b9e1cdd83ea7


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

android-webview-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8974785851349904752

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

Suspected Commit
  Author : perezju
  Commit : b5c1738572410f30cbcae23354f1738cf0b222ef
  Date   : Wed Jul 05 08:52:52 2017
  Subject: [Telemetry] Trigger GC on Chrome processes forked from Zygote

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:java_heap:proportional_resident_size_avg/background_media/background_media_imgur
  Change       : 6.49% | 1561258.66667 -> 1662634.66667

Revision                                 Result                  N
chromium@484233                          1561259 +- 23648.3      6      good
chromium@484238                          1564672 +- 25082.8      6      good
chromium@484239                          1608704 +- 23839.6      6      good
chromium@484239,catapult@b5c1738572      1662635 +- 23648.3      6      bad       <--
chromium@484240                          1665365 +- 39571.1      6      bad
chromium@484241                          1655125 +- 26963.2      6      bad
chromium@484243                          1651712 +- 25082.8      6      bad
chromium@484252                          1666048 +- 0.0          6      bad
chromium@484270                          1662635 +- 18695.6      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-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=background.media.imgur 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/8974785851349904752


For feedback, file a bug with component Speed>Bisection