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Issue 792923 link

Starred by 1 user
Status: WontFix
Owner:
yigu@chromium.org
Closed: Feb 2018
Cc:
flackr@chromium.org
kinuko@chromium.org
npm@chromium.org
boliu@chromium.org
yigu@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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2.7%-3.4% regression in loading.desktop at 521669:521766

Project Member Reported by npm@chromium.org, Dec 7 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 7 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=792923

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=316c561779e910b8655b0319ad2280d6edea85e45e43e093d12756aeb9ba8f22


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

chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-nvidia
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 7 2017 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/12a3cdf4040000
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, Dec 7 2017 

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/12fc88d4040000

Comment 8 by sullivan@chromium.org, Jan 22 2018 

Trying one more bisect with a wider range.
Project Member

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

😿 Pinpoint job stopped with an error.
https://pinpoint-dot-chromeperf.appspot.com/job/14dd58e4840000
Project Member

Comment 11 by 42576172...@developer.gserviceaccount.com, Feb 3 2018

Cc: kinuko@chromium.org flackr@chromium.org yigu@chromium.org boliu@chromium.org
Owner: yigu@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/15e01aae840000

Round the scroll offset synced back to main thread instead of flooring by yigu@chromium.org
chromium @ a3ce2d3110a3f9177a41935daadd43ede72db553

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

Comment 12 by yigu@chromium.org, Feb 5 2018

Status: WontFix (was: Assigned)
Regression was gone.
►

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