All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759466

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=1fbfcf513ce541b972982460df89d46155fe3fd0ecc662dfd69901e2151e8cbe


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

android-nexus5X
android-one
android-webview-nexus5X
chromium-rel-mac12
chromium-rel-win7-dual
chromium-rel-win7-gpu-nvidia
chromium-rel-win7-x64-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970030090486326640

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

Suspected Commit
  Author : Jakob Kummerow
  Commit : 1785fc368edf760c22b94def899f8364256990ee
  Date   : Mon Aug 21 21:34:09 2017
  Subject: [StoreIC] Don't create handlers for fresh transitions

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : v8.runtimestats.browsing_desktop
  Metric       : Optimize:duration_avg/browse_media/browse_media_pinterest
  Change       : 56.04% | 63.6833333333 -> 99.371

Revision                           Result                  N
chromium@496227                    63.6833 +- 4.80059      6      good
chromium@496229                    67.154 +- 12.803        6      good
chromium@496229,v8@1785fc368e      98.2333 +- 7.53861      6      bad       <--
chromium@496229,v8@6e13ca6d64      94.8967 +- 20.7561      6      bad
chromium@496229,v8@e7af579ff3      97.0217 +- 15.1839      6      bad
chromium@496230                    90.9727 +- 14.8902      6      bad
chromium@496232                    96.1847 +- 13.1913      6      bad
chromium@496236                    96.6403 +- 13.4985      6      bad
chromium@496245                    97.4318 +- 18.289       6      bad
chromium@496263                    99.371 +- 22.3952       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.pinterest v8.runtimestats.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970030090486326640


For feedback, file a bug with component Speed>Bisection