RESOLVED DUPLICATE of bug 94012 94175
[Chromium] Compositor hangs while updating resources if vsync is disabled. 
https://bugs.webkit.org/show_bug.cgi?id=94175
Summary [Chromium] Compositor hangs while updating resources if vsync is disabled.
David Reveman
Reported 2012-08-15 20:00:02 PDT
Looks like manual vsync ticks are not generated when scheduler is updating resources. This happens when there's nothing to draw but resources to update. To reproduce go to a page that generates more than 48 resource updates per frame. E.g. http://www.corp.google.com/~reveman/texture-uploads/test.html with the browser window relatively large. Or it will reproduce on any composited page after lowering the textureUpdatesPerFrame constant in CCTextureUpdateController.cpp to 5.
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John Bates
Comment 1 2012-08-15 20:43:15 PDT
I think Brian just fixed this today, or has a fix in progress: https://bugs.webkit.org/show_bug.cgi?id=94012
David Reveman
Comment 2 2012-08-15 20:47:00 PDT
yup, that's the same issue. thanks. *** This bug has been marked as a duplicate of bug 94012 ***
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