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

Issue 759718 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 759038
Owner: ----
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

11.9% regression in blink_perf.dom at 495877:495997

Project Member Reported by kraynov@chromium.org, Aug 28 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 28 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759718

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=6aa43ccb04578962db38419e2ddbd0b9781536cc0f0e98b8e2aa36a199e58a52


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

android-one
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 29 2017

Mergedinto: 759038
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Michael Lippautz
  Commit : 146d898b6e27a3900dae50b497e24674d7d2adfb
  Date   : Mon Aug 21 09:24:08 2017
  Subject: [wrapper-tracing] NodeListsNodeData Align Oilpan and wrapper tracing

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : blink_perf.dom
  Metric       : remove_child_with_selection/remove_child_with_selection
  Change       : 10.90% | 29.0635 -> 32.2301666667

Revision             Result                   N
chromium@495876      29.0635 +- 0.509531      6      good
chromium@495884      28.8142 +- 0.292114      6      good
chromium@495888      29.466 +- 0.0962808      6      good
chromium@495890      29.2425 +- 0.870264      6      good
chromium@495891      32.2497 +- 0.978849      6      bad       <--
chromium@495892      32.3663 +- 1.62531       6      bad
chromium@495907      31.5612 +- 0.880919      6      bad
chromium@495937      32.1485 +- 0.803453      6      bad
chromium@495997      32.2302 +- 1.09677       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.dom

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969998602159315152


For feedback, file a bug with component Speed>Bisection

Sign in to add a comment