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Issue 792947 link

Starred by 1 user
Status: Duplicate
Merged: issue 792952
Owner:
█ imch...@chromium.org
Last visit > 30 days ago
Closed: Jan 2018
Cc:
█ junov@chromium.org
█ xlai@chromium.org
npm@chromium.org
█ imch...@chromium.org
hbos@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.8%-2% regression in performance_browser_tests at 521749:521977

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=792947

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=ba07d83d2f8fbebf92b7e8b9a74cf0fcd80caaf635e6a12cfa0d5f78339d210c


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

chromium-rel-mac-retina
chromium-rel-mac11-pro
Project Member

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

😿 Pinpoint job stopped with an error.
https://pinpoint-dot-chromeperf.appspot.com/job/14bf4934040000

Comment 7 by sullivan@chromium.org, Jan 22 2018 

Kicking off a few more bisects, since pinpoint had errors earlier.
Project Member

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

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/11f61358840000
Project Member

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

Cc: xlai@chromium.org imch...@chromium.org hbos@chromium.org junov@chromium.org
Owner: imch...@chromium.org
Status: Assigned (was: Untriaged)
📍 Found significant differences after each of 3 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/11a47f58840000

Move TransferableResource creation to Canvas Resource
By junov@chromium.org · Tue Dec 05 22:44:49 2017
chromium @ 4f6bce25c2f94e59611343ddab1fffcc13f79f07

Revert "Run constraints processing for screen capture on the main thread."
By imcheng@chromium.org · Tue Dec 05 22:47:09 2017
chromium @ 363560ef6a40f1113a1440da53fc0fcb20de40e2

Revert "Revert "Run constraints processing for screen capture on the main thread.""
By imcheng@chromium.org · Tue Dec 05 23:20:28 2017
chromium @ f28f29f4bc751439a347c129a3b6ba5a43980d66

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

Comment 10 by imch...@chromium.org, Jan 29 2018

Mergedinto: 792952
Status: Duplicate (was: Assigned)
These look like dups of 792952, please reopen if that's not the case.
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