All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=777311

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0c860b4e662d5f8f4c7836908a4908dc86283f2fb5be4aa5455931661afc5a71


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

android-nexus5
android-nexus7v2
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964956461371898064

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

Suspected Commit
  Author : Daniel Vogelheim
  Commit : 6470b38ae662c76887a0ef3229d48983b54877b7
  Date   : Thu Oct 19 14:35:58 2017
  Subject: Add WorkStealingInScriptRunner feature flag.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : Parse-Background:duration_avg/browse_media/browse_media_flickr_infinite_scroll
  Change       : 92.00% | 286.987833333 -> 551.010666667

Revision             Result                  N
chromium@510054      286.988 +- 56.8398      6      good
chromium@510071      287.554 +- 60.6628      6      good
chromium@510079      271.285 +- 86.5756      6      good
chromium@510080      289.695 +- 69.4275      6      good
chromium@510081      557.487 +- 162.837      6      bad       <--
chromium@510083      557.702 +- 146.273      6      bad
chromium@510087      551.011 +- 129.187      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.flickr.infinite.scroll v8.runtimestats.browsing_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8964956461371898064


For feedback, file a bug with component Speed>Bisection