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Issue metadata

Status: Duplicate
Merged: issue 661927
Owner: ----
Closed: Nov 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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9.7%-27.1% regression in thread_times.key_idle_power_cases at 429281:429310

Project Member Reported by primiano@chromium.org, Nov 3 2016

Issue description

See the link to graphs below.
 
Mergedinto: 661927
Status: Duplicate (was: Untriaged)

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


===== SUSPECTED CL(s) =====
Subject : Add crash keys to TaskQueueManager::ProcessTaskFromWorkQueue
Author  : alexclarke
Commit description:
  
We suspect a bad task closure is getting posted and would like to
add crash keys to aid diagnosis.

BUG=660427

Review-Url: https://codereview.chromium.org/2464853002
Cr-Commit-Position: refs/heads/master@{#429285}
Commit  : c08c078b27b353f4ab8de7deccfb862270b1ff2a
Date    : Wed Nov 02 15:49:06 2016


===== TESTED REVISIONS =====
Revision         Mean      Std Dev      N  Good?
chromium@429280  0.162573  0.00115416   5  good
chromium@429284  0.163397  0.00108479   5  good
chromium@429285  0.209927  0.00115259   5  bad    <--
chromium@429286  0.209789  0.00177164   5  bad
chromium@429288  0.209022  0.000648863  5  bad
chromium@429295  0.209309  0.000852707  5  bad
chromium@429310  0.208104  0.00172518   5  bad

Bisect job ran on: android_one_perf_bisect
Bug ID: 661935

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests thread_times.key_idle_power_cases
Test Metric: thread_total_all_cpu_time_per_second/set-timeout.html (Long Idle)
Relative Change: 28.01%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_one_perf_bisect/builds/1779
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997021620970303344


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6182467319365632

| 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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