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Issue metadata

Status: Duplicate
Merged: issue 733595
Owner: ----
Closed: Jun 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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87.2% regression in v8.runtimestats.browsing_desktop at 478959:479036

Project Member Reported by tebbi@chromium.org, Jun 16 2017

Issue description

See the link to graphs below.
 

Comment 1 by tebbi@chromium.org, Jun 16 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=734010

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgtum0ngoM


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

chromium-rel-mac11-pro
Project Member

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

Mergedinto: 733595
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Alex Clarke
  Commit : fd98b65e68c329ff0bb43db5a1c15e50aaa6c66d
  Date   : Tue Jun 13 15:44:08 2017
  Subject: Fix logic to flush internal scheduler state on navigation comit.

Bisect Details
  Configuration: mac_pro_perf_bisect
  Benchmark    : v8.runtimestats.browsing_desktop
  Metric       : GC:duration_avg/browse_social/browse_social_facebook_infinite_scroll
  Change       : 62.88% | 70.9931666667 -> 115.632666667

Revision             Result                  N
chromium@478958      70.9932 +- 20.7407      6      good
chromium@478997      66.3827 +- 13.5588      6      good
chromium@479017      68.0738 +- 14.4795      6      good
chromium@479027      66.9501 +- 26.8871      9      good
chromium@479029      67.1661 +- 15.4637      9      good
chromium@479030      102.38 +- 59.3048       9      bad       <--
chromium@479032      106.704 +- 14.1586      6      bad
chromium@479036      115.633 +- 31.6273      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.facebook.infinite.scroll v8.runtimestats.browsing_desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976637352888211504

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6024003669458944


| 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!

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