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Issue metadata

Status: Duplicate
Merged: issue 649361
Owner:
Last visit > 30 days ago
Closed: Sep 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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10.6%-247.5% regression in v8.browsing_mobile_ignition at 420147:420202

Project Member Reported by hpayer@chromium.org, Sep 27 2016

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Sep 28 2016

Mergedinto: 649361
Status: Duplicate (was: Assigned)

===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : [heap] Always use the passed-in collector in CollectGarbage.
Author  : hpayer
Commit description:
  
Do not overwrite a collector decision.

BUG=

Review-Url: https://codereview.chromium.org/2336943003
Cr-Commit-Position: refs/heads/master@{#39585}
Commit  : c19abaddafb5ede5e0d5efbe608b7fc5d7c7fcd0
Date    : Wed Sep 21 09:57:08 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev  N  Good?
chromium@420146                232.887  57.0132  5  good
chromium@420150                285.888  69.7671  5  good
chromium@420151                272.291  24.2805  5  good
chromium@420151,v8@06c6591d0f  244.253  59.0171  5  good
chromium@420151,v8@c19abaddaf  880.338  136.183  5  bad    <--
chromium@420151,v8@2fd6d6093e  850.725  73.8996  5  bad
chromium@420152                923.712  137.055  5  bad
chromium@420153                842.8    97.6964  5  bad
chromium@420160                820.602  89.5445  5  bad
chromium@420174                804.329  148.415  5  bad
chromium@420202                794.835  46.5642  5  bad

Bisect job ran on: android_one_perf_bisect
Bug ID: 650621

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests v8.browsing_mobile_ignition
Test Metric: v8-gc-latency-mark-compactor_sum/v8-gc-latency-mark-compactor_sum
Relative Change: 241.30%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_one_perf_bisect/builds/1653
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9000367315018485648


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6468150227369984

| 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 Tests>AutoBisect.  Thank you!

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