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Issue 614465 link

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Issue metadata

Status: Fixed
Owner:
Closed: Jun 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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2.1% regression in sunspider at 393521:393587

Project Member Reported by m...@chromium.org, May 24 2016

Issue description

Seems that the latest V8 roll regressed the Sunspider benchmark:

commit	0270d1543c960d8e09725bc3a833e58bdf9c1818	
author	v8-autoroll <v8-autoroll@chromium.org>	Fri May 13 16:04:36 2016
committer	Commit bot <commit-bot@chromium.org>	Fri May 13 16:06:41 2016
Update V8 to version 5.2.316.

Summary of changes available at:
https://chromium.googlesource.com/v8/v8/+log/380beebf..487ea5b7
 

Comment 1 by m...@chromium.org, May 24 2016

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=614465

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgjI-ztgsM


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

chromium-rel-win7-single

Comment 2 by m...@chromium.org, May 24 2016

Cc: vogelheim@chromium.org yangguo@chromium.org machenb...@chromium.org
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 24 2016


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


=== Bisection aborted ===
The bisect was aborted because The metric values for the initial "good" and "bad" revisions do not represent a clear regression.
Please contact the the team (see below) if you believe this is in error.

=== Warnings ===
The following warnings were raised by the bisect job:

 * Bisect failed to reproduce the regression with enough confidence.

===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N   Good?
chromium@393520  194.167  1.09813   18  good
chromium@393587  194.5    0.857493  18  bad

Bisect job ran on: win_perf_bisect
Bug ID: 614465

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests sunspider
Test Metric: Total/Total
Relative Change: 0.31%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_perf_bisect/builds/6534
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9011752435142455760


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5843632737746944

| 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!
Cc: epertoso@chromium.org
Labels: Performance
Owner: verwa...@chromium.org
Assigning to this weeks perf sheriff for further triage. 
Cc: -machenb...@chromium.org -vogelheim@chromium.org -yangguo@chromium.org hablich@chromium.org
Project Member

Comment 6 by sheriffbot@chromium.org, Jun 1 2016

Labels: -M-52 M-53 MovedFrom-52
Moving this nonessential bug to the next milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Status: Fixed (was: Assigned)
graphs have since recovered.

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