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Issue 749332 link

Starred by 1 user
Status: Duplicate
Merged: issue 749335
Owner: ----
Closed: Jul 2017
Cc:
m...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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10%-222.8% regression in rasterize_and_record_micro.top_25 at 477411:488973

Project Member Reported by m...@chromium.org, Jul 27 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jul 27 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=749332

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=2d0d6606b2976a3753c9860187b1a15c73ebd63733a7a531fae9d1ec41b4f56e


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

android-nexus5X
android-nexus7v2
android-webview-nexus5X
android-webview-nexus6
chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-air
chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-mac12-mini-8gb
chromium-rel-win10
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
chromium-rel-win8-dual
linux-release
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jul 27 2017

Mergedinto: 749335
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Naina Raisinghani
  Commit : fd7f99c9125b7f9b054b3a32c0100b526792f74c
  Date   : Mon Jul 24 05:21:35 2017
  Subject: Remove code and tests using StyleSharing

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : blink_perf.paint
  Metric       : large-table-repaint/large-table-repaint
  Change       : 218.76% | 1247.698 -> 3977.14741667

Revision             Result                  N
chromium@488905      1247.7 +- 37.6924       6      good
chromium@488912      1240.62 +- 25.1756      6      good
chromium@488914      1237.25 +- 22.4707      6      good
chromium@488915      3918.7 +- 46.8605       6      bad       <--
chromium@488916      3903.78 +- 51.2392      6      bad
chromium@488919      3932.13 +- 32.9152      6      bad
chromium@488932      4000.46 +- 61.3981      6      bad
chromium@488959      3977.15 +- 40.1184      6      bad

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

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8972961665354091520


For feedback, file a bug with component Speed>Bisection
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