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Issue 758216 link

Starred by 2 users

Issue metadata

Status: Duplicate
Merged: issue 758219
Owner: ----
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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11% regression in blink_perf.bindings at 495010:495293

Project Member Reported by nzolghadr@chromium.org, Aug 23 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 23 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758216

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0c9e1b5d49aecb65fc4816505910d7e82c8032b57d1351bad652f52323702a3f


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

linux-release
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 23 2017

Mergedinto: 758219
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Dominic Mazzoni
  Commit : 91ce4a5c047cf0a01f7d23c839bd4364428fa6ad
  Date   : Thu Aug 17 04:47:27 2017
  Subject: Add use counters for all ARIA attributes.

Bisect Details
  Configuration: linux_perf_bisect
  Benchmark    : blink_perf.bindings
  Metric       : set-attribute-rare/set-attribute-rare
  Change       : 7.81% | 833.908765977 -> 768.80917618

Revision             Result                  N
chromium@495009      833.909 +- 8.6239       6      good
chromium@495045      842.601 +- 11.0873      6      good
chromium@495063      845.995 +- 26.5832      6      good
chromium@495072      837.379 +- 21.5139      6      good
chromium@495074      837.239 +- 9.94499      6      good
chromium@495075      830.243 +- 16.9046      6      good
chromium@495076      754.732 +- 12.1923      6      bad       <--
chromium@495080      747.218 +- 10.916       6      bad
chromium@495151      727.119 +- 45.6892      6      bad
chromium@495293      768.809 +- 10.4625      6      bad

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

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970458394147416272


For feedback, file a bug with component Speed>Bisection

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