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Issue 602588 link

Starred by 3 users

Issue metadata

Status: WontFix
Owner: ----
Closed: Aug 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Android
Pri: 3
Type: Bug-Regression



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Chrome performance regression on CSS poster-circle demo

Project Member Reported by qiankun....@intel.com, Apr 12 2016

Issue description

OS: Android
Device: Nexus 4 and Nexus 6

What steps will reproduce the problem?
(1) open https://webkit.org/blog-files/3d-transforms/poster-circle.html
(2) see the animation in the page and measure the FPS (frame per second)


What is the expected output?
The animation should be smooth.

What do you see instead?
The animation is slow.

This regression is caused by https://codereview.chromium.org/1262163004. FPS drops from ~50 to ~40 after the CL landed.


 
Cc: sunn...@chromium.org
Components: -Blink>CSS>3D Blink>Scheduling
Status: Available (was: Untriaged)
Brianderson@, can you take a look at this performance regression?
Status: WontFix (was: Available)
That patch would hurt the fps in cases like this where we aren't quite hitting 60fps. It would improve latency though for content that mostly hits 60fps with a hiccup here and there.

Here are a summary of the perfbot alerts for that patch:
https://chromeperf.appspot.com/group_report?rev=351836

They are mostly green, with large wins in latency and small regressions in throughput.

Closing as WontFix.

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