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Issue 759583 link

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Issue metadata

Status: Duplicate
Merged: issue 758281
Owner: ----
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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987.2% regression in system_health.common_desktop at 494831:495262

Project Member Reported by kraynov@chromium.org, Aug 28 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 28 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759583

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=285f57f408389fb0da2b581ec9b6bfa88765cb6bc85c8425de3ef83bde0098d6


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

chromium-rel-mac-retina
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 29 2017

Mergedinto: 758281
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : sahel
  Commit : 955c32907a2c9921065fa628e0b8b5b28a7afe6c
  Date   : Thu Aug 17 14:56:44 2017
  Subject: Change tests that fail with wheel scroll latching and async wheel on.

Bisect Details
  Configuration: mac_retina_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : mousewheel_response:energy_sum/browse_social/browse_social_twitter_infinite_scroll
  Change       : 972.58% | 0.264190727089 -> 2.83365202366

Revision             Result                     N
chromium@494830      0.264191 +- 0.0595812      5      good
chromium@495046      0.263499 +- 0.0214586      6      good
chromium@495154      0.255994 +- 0.0380025      6      good
chromium@495168      0.268523 +- 0.0809723      6      good
chromium@495172      0.270587 +- 0.0578823      6      good
chromium@495173      3.3987 +- 1.04853          5      bad       <--
chromium@495174      3.03519 +- 0.96226         6      bad
chromium@495175      2.95224 +- 1.0616          6      bad
chromium@495181      2.61974 +- 0.569471        6      bad
chromium@495208      3.01636 +- 0.45091         6      bad
chromium@495262      2.83365 +- 0.853157        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.social.twitter.infinite.scroll system_health.common_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970007565415655840


For feedback, file a bug with component Speed>Bisection

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