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Issue 811508 link

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Issue metadata

Status: Fixed
Owner:
Closed: Feb 2018
Cc:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: ----



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smoothness.top_25_smooth/http://www.youtube.com in smoothness.top_25_smooth failing on multiple builders

Project Member Reported by sheriff-...@appspot.gserviceaccount.com, Feb 12 2018

Issue description

Filed by sheriff-o-matic@appspot.gserviceaccount.com on behalf of dtu@google.com

smoothness.top_25_smooth/http://www.youtube.com in smoothness.top_25_smooth failing on multiple builders

Builders failed on: 
- Mac 10.12 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%2010.12%20Perf
- Mac Pro 10.11 Perf: 
  https://build.chromium.org/p/chromium.perf/builders/Mac%20Pro%2010.11%20Perf


 

Comment 2 by dtu@chromium.org, Feb 12 2018

I see 4 failures, 3 on http://www.youtube.com and 1 on Wikipedia. I'm going to start with a bisect on youtube on a wide range and see if Pinpoint detects anything.

Comment 3 by dtu@chromium.org, Feb 12 2018

Cc: -dtu@google.com dtu@chromium.org

Comment 4 by dtu@chromium.org, Feb 13 2018

Cc: dtu@google.com
 Issue 811507  has been merged into this issue.

Comment 5 by dtu@chromium.org, Feb 13 2018

Cc: -dtu@google.com
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Feb 13 2018

Cc: fsam...@chromium.org ccameron@chromium.org
Owner: ccameron@chromium.org
Status: Assigned (was: Available)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/12b9303d840000

mac: Enable surface synchronization by default by ccameron@chromium.org
https://chromium.googlesource.com/chromium/src/+/93e0a41de62d32c31cf5b81fef8b0e65fe04aab0

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

Comment 7 by dtu@chromium.org, Feb 13 2018

Labels: OS-Mac
Hey Chris, looks like bisect found your CL to be the cause of some flaky failures of the smoothness.top_25_smooth benchmark on some of the Mac perf bots.

Here's the log from one of the failing test runs. I think it's a tab crash?
https://chromium-swarm.appspot.com/task?id=3ba6a19eb900cc10
Status: Fixed (was: Assigned)
This was reverted cause of other crashes -- hopefully will not re-occur when i re-enable (if so, please re-file).

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