All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=719405

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgipLd6QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgioedpAoM


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

android-nexus5
android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8980168520463819952

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

Suspected Commit
  Author : hpayer
  Commit : 8833af23e9788c725b0887446915e4820383a385
  Date   : Fri May 05 11:24:02 2017
  Subject: [heap] Memory reducer calls GC with kGCCallbackFlagCollectAllExternalMemory flag.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : v8-gc-total_avg/browse_social/browse_social_twitter
  Change       : 33.22% | 0.746305898412 -> 0.994201948915

Revision                           Result                     N
chromium@469654                    0.746306 +- 0.0462298      6      good
chromium@469654,v8@25959abf79      0.748819 +- 0.0541413      6      good
chromium@469654,v8@b7b3781b87      0.727329 +- 0.0330137      6      good
chromium@469654,v8@8833af23e9      0.986154 +- 0.10085        6      bad       <--
chromium@469655                    0.994236 +- 0.0914256      6      bad
chromium@469656                    1.04577 +- 0.0810008       6      bad
chromium@469658                    0.977932 +- 0.135105       6      bad
chromium@469662                    0.977409 +- 0.112912       6      bad
chromium@469669                    0.998627 +- 0.0654369      6      bad
chromium@469684                    0.994742 +- 0.0838232      6      bad
chromium@469714                    0.98466 +- 0.103597        6      bad
chromium@469773                    0.994202 +- 0.105537       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.social.twitter v8.browsing_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8980168520463819952

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5881954244755456


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!