All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=719404

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/8980168522284323552

=== 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       : 30.13% | 0.737588293109 -> 0.959849078034

Revision                           Result                     N
chromium@469654                    0.737588 +- 0.0525366      6      good
chromium@469654,v8@25959abf79      0.747742 +- 0.0469691      6      good
chromium@469654,v8@b7b3781b87      0.744958 +- 0.144649       6      good
chromium@469654,v8@8833af23e9      0.987193 +- 0.0731348      6      bad       <--
chromium@469655                    0.992011 +- 0.0595273      6      bad
chromium@469656                    1.02256 +- 0.0735573       6      bad
chromium@469658                    1.00939 +- 0.0978229       6      bad
chromium@469662                    1.00705 +- 0.0443017       6      bad
chromium@469669                    0.989851 +- 0.10916        6      bad
chromium@469684                    0.96757 +- 0.227329        6      bad
chromium@469714                    0.949365 +- 0.14175        6      bad
chromium@469773                    0.959849 +- 0.0597925      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/8980168522284323552

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5809340977512448


| 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!