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Issue metadata

Status: Duplicate
Merged: issue 641347
Owner:
Closed: Aug 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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13.9%-17.8% regression in scheduler.tough_scheduling_cases at 414460:414534

Project Member Reported by mustaq@chromium.org, Aug 26 2016

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 26 2016

Mergedinto: 641347
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : Touchpad scroll latching enabled for Mac behind flag.
Author  : sahel
Commit description:
  
To test it, use the --enable-features=TouchpadScrollLatching runtime flag.

BUG=526463
TEST=MouseWheelEventQueueTests/MouseWheelEventQueueTest.GestureSendingWithPhaseInformation/[0/1]
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel

Review-Url: https://codereview.chromium.org/2256733003
Cr-Commit-Position: refs/heads/master@{#414515}
Commit  : 7adc4a771383af81e2411e755bdce689c803b939
Date    : Thu Aug 25 19:56:17 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev    N  Good?
chromium@414502  7.79357  0.0902662  5  good
chromium@414509  7.81108  0.1476     5  good
chromium@414513  7.87206  0.221985   5  good
chromium@414514  7.9807   0.254174   5  good
chromium@414515  9.23065  0.167921   5  bad    <--
chromium@414516  9.23927  0.159589   5  bad

Bisect job ran on: win_x64_perf_bisect
Bug ID: 641348

Test Command: src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --also-run-disabled-tests scheduler.tough_scheduling_cases
Test Metric: mean_input_event_latency/mean_input_event_latency
Relative Change: 18.55%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_x64_perf_bisect/builds/1450
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9003254690932526240


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5283207860191232

| 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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