[Webkit-unassigned] [Bug 113786] Throttle repaints during page loading in tile controller

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=113786





--- Comment #9 from Simon Fraser (smfr) <simon.fraser at apple.com>  2013-04-02 10:56:26 PST ---
(In reply to comment #8)
> (In reply to comment #7)
> > So maybe we should really just throttle compositing layer flushes during page load, which will have the side-effect of throttling repaints.
> 
> Sounds plausible. Is all that code already safe to be wildly out of sync with the current state of renderlayer/object tree?

Throttling flushes will allow the CALayer tree to get out of sync with the GraphicsLayer tree, which is fine. The only thing that might be an issue is the layer registered with the ScrollingCoordinator; we might have to also throttle scrolling tree commits (which, ideally, would be tied to layer flushes).

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