RESOLVED FIXED 73238
REGRESSION (r101202): Incredibly poor scrolling performance on WebKit Bugzilla bug list page 
https://bugs.webkit.org/show_bug.cgi?id=73238
Summary REGRESSION (r101202): Incredibly poor scrolling performance on WebKit Bugzill...
Mark Rowe (bdash)
Reported 2011-11-28 12:30:43 PST
After r101202 I’m seeing the WebKit Bugzilla new bugs list at <http://webkit.org/new-bugs/3d> scroll at perhaps three or four frames per second. Prior to that revision the page scrolled at around 40fps. A sample shows that almost all of the time is being spent below RenderTable::paint, with most of that inside RenderTableCell::paintCollapsedBorder. A related side-effect is that when switching to a tab containing <http://webkit.org/new-bugs/3d> I often see it flicker blank before the contents appear.
Attachments
Sample (724.38 KB, text/plain)
2011-11-28 12:41 PST, Simon Fraser (smfr) 		no flags
Details
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Radar WebKit Bug Importer
Comment 1 2011-11-28 12:31:19 PST
<rdar://problem/10492343>
Mark Rowe (bdash)
Comment 2 2011-11-28 12:31:59 PST
r101202 was for bug 71244.
Simon Fraser (smfr)
Comment 3 2011-11-28 12:41:05 PST
Created attachment 116800 [details] Sample
Robert Hogan
Comment 4 2011-11-28 15:24:46 PST
Rolled out in http://trac.webkit.org/changeset/101292
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