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Issue metadata

Status: Duplicate
Merged: issue 729012
Owner: ----
Closed: Jun 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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3.8%-37.3% regression in v8.runtimestats.browsing_mobile at 475569:475793

Project Member Reported by tebbi@chromium.org, Jun 14 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 14 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : API:duration_avg/browse_news/browse_news_cricbuzz

Revision             Result                  N
chromium@475665      3075.54 +- 2211.53      21      good
chromium@475793      2953.91 +- 2220.74      21      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.news.cricbuzz v8.runtimestats.browsing_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976807700309112832

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5228664645484544


| 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!
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Jun 14 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : API:duration_avg/browse_news/browse_news_cricbuzz

Revision             Result                  N
chromium@475665      2931.71 +- 2376.61      21      good
chromium@475793      2942.68 +- 2072.67      21      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.news.cricbuzz v8.runtimestats.browsing_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976796724132689856

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5228664645484544


| 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!
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Jun 14 2017

Mergedinto: 729012
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : altimin
  Commit : f39f12be44e4d35eb25c7a58b1895c751da723f5
  Date   : Tue May 30 17:53:12 2017
  Subject: [scheduler] Add general task queue to fix touch latency regression.

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile_classic
  Metric       : Total:duration_avg/browse_social/browse_social_instagram
  Change       : 39.47% | 15282.1553333 -> 21314.061

Revision             Result                  N
chromium@475568      15282.2 +- 738.599      6      good
chromium@475583      15306.8 +- 620.149      6      good
chromium@475587      15336.9 +- 364.611      6      good
chromium@475589      15297.5 +- 545.584      6      good
chromium@475590      15190.9 +- 738.387      6      good
chromium@475591      21037.9 +- 734.576      6      bad       <--
chromium@475598      21021.8 +- 542.43       6      bad
chromium@475628      21015.5 +- 486.356      6      bad
chromium@475687      21314.1 +- 497.262      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.instagram v8.runtimestats.browsing_mobile_classic

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976797855076963520

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6153887775457280


| 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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