[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


Oliver Hunt <oliver at apple.com> changed:

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  Attachment #41379|review?                     |review+, commit-queue+
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--- Comment #23 from Oliver Hunt <oliver at apple.com>  2009-12-12 23:22:35 PST ---
(From update of attachment 41379)
I found another testcase where we get pathologically bad perf due to this issue
which would imply that there's just too much cost in not clipping prior to
calling the graphics library -- my test case just created many many many
(~50000 odd) nodes mostly off the screen and this patch represents a huge
improvement in that case.

Still not sure why i don't see the perf problems you do in your example, but
with a testcase that is too slow this shows up as a clear problem in shark.

r=me.

The patch applies cleanly lets see how the commit bot deals with the changelog.

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