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Issue metadata

Status: Duplicate
Owner:
Closed: May 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.9% regression in page_cycler.intl_es_fr_pt-BR at 394550:394590

Project Member Reported by kouhei@chromium.org, May 20 2016

Issue description

See the link to graphs below.
 

Comment 1 by kouhei@chromium.org, May 20 2016

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=613430

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgjOXWogkM


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

android-nexus5
Project Member

Comment 2 by 42576172...@developer.gserviceaccount.com, May 20 2016

Mergedinto: 613168
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : Disable thread-safe Send on ChannelMojo
Author  : rockot
Commit description:
  
The world is not yet ready for thread-safe Send. D:

BUG= 612944 
TBR=jam@chromium.org

Review-Url: https://codereview.chromium.org/1991913003
Cr-Commit-Position: refs/heads/master@{#394568}
Commit  : ff0d8038dd81bb025313a393cb8a6fcde9a79603
Date    : Wed May 18 22:04:53 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@394549  3607.09  22.7622  6  good
chromium@394560  3613.3   22.8902  8  good
chromium@394565  3620.2   23.1476  8  good
chromium@394567  3618.81  8.94538  5  good
chromium@394568  3688.6   16.5095  5  bad    <--
chromium@394570  3667.94  30.7168  5  bad
chromium@394590  3666.95  23.4947  8  bad

Bisect job ran on: android_nexus5_perf_bisect
Bug ID: 613430

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests page_cycler.intl_es_fr_pt-BR
Test Metric: warm_times/page_load_time
Relative Change: 1.83%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5_perf_bisect/builds/3697
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9012177040667462352


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5866151989477376

| 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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