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Issue 663996 link

Starred by 2 users
Status: Available
Owner: ----
Cc:
ajuma@chromium.org
enne@chromium.org
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OS: ----
Pri: 2
Type: Bug



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High CPU time in PictureLayer::PushPropertiesTo

Project Member Reported by vmi...@chromium.org, Nov 10 2016 
Version: 56.0.2906.0
OS: Linux

I'm getting surprising traces on MotionMark leaves test.  http://browserbench.org/MotionMark/developer.html

* With fixed complexity at 100, PictureLayer::PushPropertiesTo is 2~5ms each.
* With fixed complexity at 200, PictureLayer::PushPropertiesTo is 0.03ms each.

Comment 1 by vmi...@chromium.org, Nov 10 2016 

Traces attached.
trace_leaves-100.json.gz
1.1 MB Download
trace_leaves-200.json.gz
1.3 MB Download

Comment 2 by vmi...@chromium.org, Nov 10 2016 

This might be related to complexity of the InvalidationRegion.

For <=256 we keep individual invalidation rectangles.
For >256 invalidations we squash all invalidations into one bounding rectangle.

Comment 3 by jaydasika@chromium.org, May 13 2017

Owner: ----
Status: Available (was: Assigned)
Project Member

Comment 4 by sheriffbot@chromium.org, May 14 2018

Labels: Hotlist-Recharge-Cold
Status: Untriaged (was: Available)
This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Comment 5 by reve...@chromium.org, May 18 2018

Status: Available (was: Untriaged)
►

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