NEW 98689
[META] static scrolling example is very slow
https://bugs.webkit.org/show_bug.cgi?id=98689
Summary [META] static scrolling example is very slow
Eric Seidel (no email)
Reported 2012-10-08 14:43:49 PDT
[META] static scrolling example is very slow Attached is a (slightly modified) version of a scrolling test from another member of the Chrome team. Both Safari and Chrome are slow at scrolling this (simple static page!)
Attachments
test case (uses an http://webkit.org link for the images) (5.12 KB, text/html)
2012-10-08 14:44 PDT, Eric Seidel (no email)
no flags
Sample of r130657 scrolling in Safari (1.03 MB, application/zip)
2012-10-08 14:45 PDT, Eric Seidel (no email)
no flags
Eric Seidel (no email)
Comment 1 2012-10-08 14:44:18 PDT
Created attachment 167617 [details] test case (uses an http://webkit.org link for the images)
Eric Seidel (no email)
Comment 2 2012-10-08 14:45:05 PDT
Created attachment 167618 [details] Sample of r130657 scrolling in Safari
James Robinson
Comment 3 2012-10-08 15:00:46 PDT
The -webkit-box-shadows appear to be responsible for the majority of the paint time cost.
Simon Fraser (smfr)
Comment 4 2012-10-08 15:01:08 PDT
Lots of clipping for shadows.
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