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Issue 785719 link

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Issue metadata

Status: Duplicate
Merged: issue 782718
Owner: ----
Closed: Nov 2017
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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9.2%-199.2% regression in v8.runtimestats.browsing_mobile at 514348:514532

Project Member Reported by bmeurer@google.com, Nov 16 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Nov 16 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=785719

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=237e502cdb6b473da6f89f560d6c139a7b481319c0b4bfceda8eb12e22ea50dd


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

android-nexus5
android-nexus5X
android-nexus7v2
chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-air
chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-mac12-mini-8gb
chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win8-dual
linux-release
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Nov 16 2017

Mergedinto: 782718
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Toon Verwaest
  Commit : 460652c9786c686094b71f9d64e3e6025252c11a
  Date   : Mon Nov 06 17:43:26 2017
  Subject: [ic] Migrate API getters to data handlers

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : JavaScript:duration_avg/browse_social/browse_social_tumblr_infinite_scroll
  Change       : 196.00% | 3854.12066667 -> 11408.121

Revision                           Result                  N
chromium@514347                    3854.12 +- 466.628      6      good
chromium@514366                    4025.15 +- 434.108      6      good
chromium@514367                    3764.78 +- 356.469      6      good
chromium@514367,v8@2d12bc5bae      3781.1 +- 233.091       6      good
chromium@514367,v8@dfd029b45e      3849.91 +- 385.495      6      good
chromium@514367,v8@c7ad5652d3      3729.34 +- 86.7369      6      good
chromium@514367,v8@460652c978      11384.4 +- 1628.15      6      bad       <--
chromium@514368                    10928.5 +- 2777.07      6      bad
chromium@514369                    11474.0 +- 1260.58      6      bad
chromium@514371                    11506.2 +- 2239.56      6      bad
chromium@514375                    11940.1 +- 1660.76      6      bad
chromium@514384                    12240.1 +- 2038.62      6      bad
chromium@514420                    11408.1 +- 1789.23      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.tumblr.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/8962786638567643216


For feedback, file a bug with component Speed>Bisection

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