New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 700911 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 700364
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

10.1%-26.9% regression in blink_perf.bindings at 455680:455816

Project Member Reported by hjd@chromium.org, Mar 13 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 14 2017

Mergedinto: 700364
Status: Duplicate (was: Untriaged)

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : Michael Hablich
  Commit : 7c3936c67a6361371d9a00d83e2c03ecc603ce76
  Date   : Thu Mar 09 08:05:42 2017
  Subject: Version 5.9.34.1 (Turn on I+TF)

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : structured-clone-json-deserialize/structured-clone-json-deserialize
  Change       : 16.22% | 134.78098 -> 156.646673333

Revision                           Result                  N
chromium@455716                    134.781 +- 1.63006      6      good
chromium@455719                    135.621 +- 1.64129      5      good
chromium@455719,v8@7c3936c67a      160.957 +- 2.64159      6      bad       <--
chromium@455719,v8@fbffc377e3      159.717 +- 1.17305      6      bad
chromium@455720                    160.456 +- 3.49747      6      bad
chromium@455721                    159.115 +- 1.51887      6      bad
chromium@455725                    157.39 +- 2.76376       6      bad
chromium@455733                    156.089 +- 5.61569      6      bad
chromium@455750                    156.647 +- 3.09667      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.bindings

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985229380491367136

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6241612679610368


| 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 Speed>Bisection.  Thank you!

Sign in to add a comment