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Issue 760166 link

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Issue metadata

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



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10.7%-22.8% regression in blink_perf.dom at 495854:495915

Project Member Reported by pmeenan@chromium.org, Aug 29 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 29 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=760166

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=02e2acaa0d441b1fda8c3edfd4e03fc677b854e542c026868d01e0afd26494e4


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

chromium-rel-mac-retina
chromium-rel-mac11-air
chromium-rel-win7-dual
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: win_perf_bisect
  Benchmark    : blink_perf.dom
  Metric       : inner_html_with_selection/inner_html_with_selection
  Change       : 13.80% | 0.6785 -> 0.772166666667

Revision             Result                     N
chromium@495853      0.6785 +- 0.0133229        6      good
chromium@495884      0.6875 +- 0.0227046        6      good
chromium@495888      0.6715 +- 0.011811         6      good
chromium@495890      0.6885 +- 0.0444016        6      good
chromium@495891      0.757667 +- 0.0159792      6      bad       <--
chromium@495892      0.765 +- 0.0334963         6      bad
chromium@495900      0.773 +- 0.0422611         6      bad
chromium@495915      0.772167 +- 0.0286851      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.dom

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969912299369210672


For feedback, file a bug with component Speed>Bisection

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