[CEF3][Mac] An off-screen renderer browser sends more scrolling events than non-off-screen one.

apimall / chromiumembedded

Automatically exported from code.google.com/p/chromiumembedded

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[CEF3][Mac] An off-screen renderer browser sends more scrolling events than non-off-screen one. #982

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago

What steps will reproduce the problem?
Run telemetry smoothness benchmark with and without off-screen rendering.

What is the expected output? What do you see instead?
I expected similar results.
Average mean frame time is two times smaller in off-screen rendering mode (more 
fps).

Trunk, r. 1255, Mac OS X Mountain Lion.

Reason: An off-screen rendering cefclient sends two times more scrollWheel 
events than content module (non-OSR) does. Recording tracing while scrolling 
pages in the two modes shows up this issue too.

Original issue reported on code.google.com by iohan...@gmail.com on 21 May 2013 at 8:45

GoogleCodeExporter commented 9 years ago

Original comment by iohan...@gmail.com on 21 May 2013 at 8:49

Attachments:

Results_OSR_vs_NoOSR.png

GoogleCodeExporter commented 9 years ago

I attached a fix for this issue.

Original comment by iohan...@gmail.com on 21 May 2013 at 8:51

Attachments:

scroll.patch

GoogleCodeExporter commented 9 years ago

Thanks, and good blog post (linked below for future reference).

http://blogs.adobe.com/webplatform/2013/05/22/testing-performance-in-cef/

Original comment by magreenb...@gmail.com on 27 May 2013 at 2:16

Changed state: Accepted
Added labels: CEF3, NextRelease, OpSys-OSX

GoogleCodeExporter commented 9 years ago

Added in trunk revision 1267 and 1453 branch revision 1268 with minor style 
changes.

Original comment by magreenb...@gmail.com on 31 May 2013 at 4:23

Changed state: Fixed