All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758873

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c669c8efc90e3ab85a1b275d9440974254d4aa7adb31543a7261be4f842ea980


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

android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970301152478148448

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

Suspected Commit
  Author : Pavel Feldman
  Commit : 9ce7836fdec98fde42fc61347c4161077dbea0fc
  Date   : Wed Aug 23 07:07:21 2017
  Subject: DevTools: introduce lifecycle events reported over the page domain.

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstMeaningfulPaint_avg/load_media/load_media_google_images
  Change       : 79.20% | 400.670333333 -> 717.998

Revision             Result                  N
chromium@496601      400.67 +- 89.1905       6      good
chromium@496606      382.588 +- 45.3056      6      good
chromium@496607      708.252 +- 38.2928      6      bad       <--
chromium@496608      717.542 +- 51.4639      6      bad
chromium@496610      719.812 +- 39.2822      6      bad
chromium@496618      708.86 +- 35.6647       6      bad
chromium@496634      717.998 +- 68.3022      6      bad

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=load.media.google.images system_health.common_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970301152478148448


For feedback, file a bug with component Speed>Bisection