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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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20.3%-22.9% regression in thread_times.simple_mobile_sites at 389461:389553

Project Member Reported by pmeenan@chromium.org, Apr 27 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=607306

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5PnquwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5Ii8sgsM


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

android-galaxy-s5
android-nexus9
Kicked off a bisect on the second regression since it was cleaner.
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Apr 28 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      Std Dev     N  Good?
chromium@389460  0.888425  0.0162373   5  good
chromium@389486  0.873069  0.00645177  5  good
chromium@389493  0.891534  0.0131506   5  good
chromium@389496  0.89672   0.014403    5  good
chromium@389497  1.09383   0.00889233  5  bad    <--
chromium@389498  1.09701   0.0217758   5  bad
chromium@389499  1.09293   0.007162    5  bad
chromium@389512  1.07108   0.0171123   5  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 607306

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests thread_times.simple_mobile_sites
Test Metric: thread_IO_cpu_time_per_frame/thread_IO_cpu_time_per_frame
Relative Change: 20.56%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/1763
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9014136079112933264


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5848531802259456

| 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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