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Issue 792079 link

Starred by 1 user
Status: Assigned
Owner:
█ nainar@chromium.org
Not on Chrome anymore
Cc:
█ fdegros@chromium.org
battre@chromium.org
futhark@chromium.org
█ nainar@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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77.2%-142.9% regression in blink_perf.parser at 521232:521256

Project Member Reported by pmeenan@chromium.org, Dec 5 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 5 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=792079

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f458c04cf5060c80866043f692807e74ffa74285b032604010b5c7448ae5eb6c


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

android-nexus5
android-nexus6
android-webview-nexus5X

Comment 6 by sullivan@chromium.org, Jan 22 2018 

Kicked off a few more bisects since the old bisect didn't return.
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Jan 22 2018 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/15a0c044840000
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Jan 22 2018 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/14a232d8840000
Project Member

Comment 9 by 42576172...@developer.gserviceaccount.com, Jan 22 2018 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/11ba4824840000

Comment 12 by sullivan@chromium.org, Jan 29 2018 

Bisects got no values. Trying again...
Project Member

Comment 13 by 42576172...@developer.gserviceaccount.com, Feb 1 2018

Cc: nainar@chromium.org futhark@chromium.org fdegros@chromium.org battre@chromium.org
Owner: nainar@chromium.org
Status: Assigned (was: Untriaged)
📍 Found significant differences after each of 2 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/14a6a1ba840000

Simplified PrefServiceFactory's setters.
By fdegros@chromium.org · Mon Dec 04 00:14:44 2017
chromium @ a239602a8b9898620d2893045f0ddbabf4ed9942

Remove calls to styleForLayoutObject() in LayoutTreeBuilder::style()
By nainar@chromium.org · Mon Dec 04 01:01:29 2017
chromium @ b71f5b7df345f1a8603b7cf7b59edf48288e7d96

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Comment 14 by pmeenan@chromium.org, Jul 30

Cc: -pmeenan@chromium.org
►

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