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Issue metadata

Status: Duplicate
Merged: issue 606760
Owner:
Last visit > 30 days ago
Closed: Apr 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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15.9% regression in smoothness.top_25_smooth at 389483:389510

Project Member Reported by pmeenan@chromium.org, Apr 26 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=606757

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5PW9qAkM


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

android-nexus5
Project Member

Comment 2 by 42576172...@developer.gserviceaccount.com, Apr 26 2016

Mergedinto: 606760
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : Add field trial testing config for MojoChannel
Author  : rockot
Commit description:
  
R=asvitkine@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1918583002

Cr-Commit-Position: refs/heads/master@{#389497}
Commit  : bf36f2d46f43eff11f56ea205615f092801b1004
Date    : Mon Apr 25 16:47:03 2016


===== TESTED REVISIONS =====
Revision                Mean Value  Std. Dev.   Num Values  Good?
chromium@389482         5.8308      0.15342     5           good
chromium@389496         5.9634      0.11224     5           good
chromium@389497         6.7076      0.349155    5           bad         <-
chromium@389498         6.7718      0.295177    5           bad
chromium@389500         6.7658      0.120626    5           bad
chromium@389503         6.7616      0.327902    5           bad
chromium@389510         6.6116      0.173105    5           bad

Bisect job ran on: android_nexus5_perf_bisect
Bug ID: 606757

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests smoothness.top_25_smooth
Test Metric: mean_input_event_latency/Wikipedia (1 tab)
Relative Change: 13.39%
Score: 99.5

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5_perf_bisect/builds/3624
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9014314293949234352


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5888132206034944

| 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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