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Issue metadata

Status: Duplicate
Merged: issue 624630
Owner:
Closed: Jul 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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9.4% regression in scheduler.tough_scheduling_cases at 402646:402723

Project Member Reported by qyears...@chromium.org, Jul 3 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=625466

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgkv6GvAoM


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

android-nexus6
Mergedinto: 624630
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : Re-enable GPU Rasterization for content with any author defined viewport.
Author  : vmiura
Commit description:
  
BUG= 591179 

Review-Url: https://codereview.chromium.org/2097413003
Cr-Commit-Position: refs/heads/master@{#402702}
Commit  : a017b667a53b3ee5f8bc630be98c37ebf53a2339
Date    : Wed Jun 29 03:37:05 2016


===== TESTED REVISIONS =====
Revision         Mean      Std Dev     N  Good?
chromium@402645  0.323545  0.00129137  5  good
chromium@402684  0.323825  0.00140706  5  good
chromium@402694  0.330413  0.00224546  5  good
chromium@402699  0.323922  0.00372452  5  good
chromium@402701  0.328243  0.0051945   5  good
chromium@402702  0.356299  0.00729213  5  bad    <--
chromium@402704  0.354594  0.00533988  5  bad
chromium@402723  0.354553  0.00619797  5  bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 625466

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests scheduler.tough_scheduling_cases
Test Metric: queueing_durations/queueing_durations
Relative Change: 9.58%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2284
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9008185661514856608


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5823674507067392

| 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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