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Issue 759716 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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45.1% regression in blink_perf.dom at 495877:496293

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=759716

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=42b10ddc137fd45b92b1b1b131d1dd87db2a04bbec4dcbfe38b3f998caaeb56c


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

android-nexus5
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_nexus5_perf_bisect
  Benchmark    : blink_perf.dom
  Metric       : inner_html_with_selection/inner_html_with_selection
  Change       : 52.48% | 13.6751666667 -> 20.8523333333

Revision             Result                   N
chromium@495876      13.6752 +- 0.810286      6      good
chromium@495890      13.8465 +- 0.466919      6      good
chromium@495891      17.8525 +- 1.21892       6      bad       <--
chromium@495892      19.4307 +- 1.63017       6      bad
chromium@495894      20.1958 +- 2.69629       6      bad
chromium@495897      18.7317 +- 1.38012       6      bad
chromium@495903      19.63 +- 3.74958         6      bad
chromium@495929      18.4783 +- 1.64374       6      bad
chromium@495981      20.6653 +- 1.72807       6      bad
chromium@496085      19.5063 +- 2.95643       6      bad
chromium@496293      20.8523 +- 1.27354       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/8969998692045706640


For feedback, file a bug with component Speed>Bisection

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