New issue
Advanced search Search tips

Issue 600263 link

Starred by 0 users

Issue metadata

Status: Duplicate
Merged: issue 600271
Owner:
Closed: Apr 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

17.9% regression in blink_perf.parser at 384639:384656

Project Member Reported by toyoshim@chromium.org, Apr 4 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=600263

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgiI768wgM


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

linux-release
Mergedinto: 600271
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : WTF::ThreadSpecific should use base::ThreadLocalStorage.
Author  : esprehn
Commit description:
  
Let's use the base abstraction to allocate the
TLS. It's way less code.

Review URL: https://codereview.chromium.org/1849023002

Cr-Commit-Position: refs/heads/master@{#384650}
Commit  : 56641fdb889c6b5d27997465b622d7432c0ba0b8
Date    : Fri Apr 01 19:01:26 2016


===== TESTED REVISIONS =====
Revision                Mean Value  Std. Dev.   Num Values  Good?
chromium@384638         12046.51243 198.25748   5           good
chromium@384647         12257.45145361.309252   4           good
chromium@384649         12073.680938137.32303   4           good
chromium@384650         10128.33592 92.151066   5           bad         <-
chromium@384652         10224.92168341.998518   5           bad
chromium@384656         10042.645162166.82626   5           bad

Bisect job ran on: linux_perf_bisect
Bug ID: 600263

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --also-run-disabled-tests blink_perf.parser
Test Metric: innerHTML-setter-siblings/innerHTML-setter-siblings
Relative Change: 16.63%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/linux_perf_bisect/builds/6367
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9016325907996224080


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=600263

| 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!

Sign in to add a comment