[Webkit-unassigned] [Bug 30055] Bad DOM performance in large SVG files

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=30055





--- Comment #10 from Patrick R. Gansterer <paroga at paroga.com>  2009-10-28 13:40:14 PDT ---
(In reply to comment #9)
> Why are you checking for intersection prior to applying the local transform to
> the paintInfo region?
I only tried to find an easy way to demonstate the performance problem. The
paintInfo.context->save(); stuff takes a significant amount of time on my
machine. In my optinion there must be a better way to handle "DOM repaints" in
general. Always iterateing over _all_ items isn't very cool.
Maybe you can confirm this issue and tell me the prefered solution.

If you take a look at http://paroga.com/webkit/livedemo.php you can see a (not
so good) example what people do with SVG.

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