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Issue metadata

Status: Duplicate
Merged: issue 731880
Owner:
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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106.4% regression in v8.runtimestats.browsing_mobile at 477799:477972

Project Member Reported by ulan@google.com, Jun 9 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 2 by 42576172...@developer.gserviceaccount.com, Jun 10 2017

Mergedinto: 731880
Status: Duplicate (was: Assigned)

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

Suspected Commit
  Author : Alex Clarke
  Commit : cfd4fb5bd56f9e0f98668471a21f7f720cd5c311
  Date   : Thu Jun 08 10:26:12 2017
  Subject: Pause virtual time until provisional navigations are committed

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : v8-gc-full-mark-compactor_sum/browse_media/browse_media_facebook_photos
  Change       : 125.06% | 18.3045555556 -> 40.1638888889

Revision             Result                   N
chromium@477798      18.3046 +- 1.44026       9       good
chromium@477885      22.5638 +- 25.4031       9       good
chromium@477929      18.3384 +- 1.20459       9       good
chromium@477932      24.4333 +- 38.4431       14      good
chromium@477934      18.5345 +- 0.789298      6       good
chromium@477935      40.8067 +- 12.0739       9       bad       <--
chromium@477940      38.9415 +- 3.75578       6       bad
chromium@477951      42.1977 +- 12.0989       6       bad
chromium@477972      40.1639 +- 12.9056       9       bad

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

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977259059795613952

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6637877909258240


| 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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