[Webkit-unassigned] [Bug 34649] Extremely slow DOM access compared to other non-webkit browsers

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sat Aug 13 02:37:50 PDT 2011


Chad <chadwhee at yahoo.com> changed:

           What    |Removed                     |Added
                 CC|                            |chadwhee at yahoo.com

--- Comment #3 from Chad <chadwhee at yahoo.com>  2011-08-13 02:37:50 PST ---
I'm seeing the same problem.

I've made some examples. These examples are the same content with different styling:

1) Normal scrolling. Solid borders and border-collapse:separate


2) Slow scrolling. Solid borders and border-collapse:collapse


3) Very slow scrolling and beach ball of death.
   Semi-transparent RGBA borders and border-collapse:separate


I'm testing with Safari 5.1 and OS X 10.6.8 (+update) on my Late 2006 MacBook Pro.

Firefox 4 sees roughly equal performance on on all of those examples.
Safari 5.0 and earlier sees about the same performance on each example.
Chrome 13.0.7 has similar performance issues with these examples.

Here is another page that exhibits performance problems because of border-collapse:collapse


This is the same bug on Google's bug tracker:


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