All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=763920

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=75fa223d3b2a21c9ddbf769d3368665c2d6c3142ebac450d1a7d0ff2a56b9439


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

android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968742893176194544

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

Suspected Commit
  Author : Jakob Kummerow
  Commit : cfcdeab0028b7f27fff277adfef602776aeeb37b
  Date   : Tue Sep 05 18:00:39 2017
  Subject: [storeic] Drop duplicate stubs for each LanguageMode

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : v8-gc-memory-mark-compactor_avg/browse_social/browse_social_pinterest_infinite_scroll
  Change       : 135.80% | 16.7853611111 -> 39.58

Revision                           Result                  N
chromium@499616                    16.7854 +- 21.5011      9      good
chromium@499747                    13.8468 +- 27.322       9      good
chromium@499812                    12.2229 +- 24.2125      8      good
chromium@499813                    11.5673 +- 20.2048      6      good
chromium@499813,v8@fbd1d1ad25      18.8989 +- 16.6747      7      good
chromium@499813,v8@62fee3b64c      18.4227 +- 25.1642      9      good
chromium@499813,v8@cfcdeab002      38.9976 +- 6.34564      4      bad       <--
chromium@499813,v8@1400544c37      38.4595 +- 4.53138      6      bad
chromium@499814                    38.4819 +- 5.58532      5      bad
chromium@499815                    38.1034 +- 6.8946       4      bad
chromium@499817                    40.4236 +- 4.16093      4      bad
chromium@499821                    36.9937 +- 3.55556      5      bad
chromium@499829                    36.9007 +- 4.50438      5      bad
chromium@499845                    40.3657 +- 3.65549      4      bad
chromium@499877                    39.58 +- 11.4324        4      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.social.pinterest.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/8968742893176194544


For feedback, file a bug with component Speed>Bisection