Bug 21589
| Summary: | High cpu load and slow GIF animation rendering | ||
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| Product: | WebKit | Reporter: | Vilen Tambovtsev <xumix> |
| Component: | Images | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | Major | CC: | dougmencken, ned, pkasting |
| Priority: | P2 | ||
| Version: | 528+ (Nightly build) | ||
| Hardware: | Mac (Intel) | ||
| OS: | OS X 10.5 | ||
Vilen Tambovtsev
Webkit r37469.
Here is the image: http://cache.boston.com/universal/site_graphics/blogs/bigpicture/sol_10_13/sol09.gif
When I try to open this image in Webkit I'm suffering real high cpu load(50-70%) and slow animation at the same time. If I crawl a web page with some more animations Webkit stops responding at all, for instance this page http://habrahabr.ru/blogs/kosmos/42350/
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| Add attachment proposed patch, testcase, etc. |
Vilen Tambovtsev
Same image is rendered smoothly in Firefox, and CPU load is 7-10%
Jussi Hagman
Loooks like #22280.
Douglas
That's right. GIF animation plays very smooth in Firefox and in QuickTime, but in WebKit-Safari it: 1) hangs browser (10-30 seconds showing rainbow cursor), 2) in beginning of animation, plays almost every frame, but then plays every 5-10th frame only and evenually shows rainbow cursor again.
Power Mac G4 800; OS X 10.4.11; WebKit nightly build (March 4)
Vilen Tambovtsev
The page to prove the bug
http://tambovtsev.info/webkit-bug.html
Peter Kasting
*** This bug has been marked as a duplicate of bug 22280 ***