All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=748541

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4b64d28d48a940bf6a6d2f619233c30d15b5abb0a8f313a2376046c763518421


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

android-nexus5
android-nexus5X
android-nexus6
android-nexus7v2
android-one
android-webview-nexus5X
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8973088682337659456

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

Suspected Commit
  Author : Michael Lippautz
  Commit : a45048e20582e7fb1f1f5c7d4b77110dab1f9cba
  Date   : Thu Jul 20 14:05:02 2017
  Subject: [heap] Parallel Scavenge

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : v8-gc-scavenger_max/browse_media/browse_media_flickr_infinite_scroll
  Change       : 73.97% | 20.6243333333 -> 35.88

Revision                           Result                  N
chromium@488719                    20.6243 +- 2.30434      6      good
chromium@488736                    20.7468 +- 4.72524      6      good
chromium@488745                    19.9678 +- 5.07615      6      good
chromium@488745,v8@b23b8c088c      20.9638 +- 1.85248      6      good
chromium@488745,v8@1084d20978      21.3755 +- 2.06824      6      good
chromium@488745,v8@ecd06ed09f      22.4343 +- 3.23233      6      good
chromium@488745,v8@a45048e205      36.2012 +- 2.26995      6      bad       <--
chromium@488745,v8@f24b6f96f8      36.3355 +- 5.28041      6      bad
chromium@488745,v8@8ab48b6c04      36.0705 +- 1.86416      6      bad
chromium@488746                    36.487 +- 1.84854       6      bad
chromium@488747                    36.1662 +- 2.39716      6      bad
chromium@488749                    36.311 +- 4.62345       6      bad
chromium@488753                    37.67 +- 9.44018        6      bad
chromium@488787                    35.88 +- 2.48915        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/8973088682337659456


For feedback, file a bug with component Speed>Bisection