Bug 8945 - REGRESSION: Scrolling is very slow when dragging the thumb
Summary: REGRESSION: Scrolling is very slow when dragging the thumb
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 420+
Hardware: Mac OS X 10.4
: P1 Blocker
Assignee: Tim Omernick
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-05-16 13:23 PDT by Dave Hyatt
Modified: 2006-05-18 02:11 PDT (History)
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Description Dave Hyatt 2006-05-16 13:23:09 PDT 
On practically every page I go to, scrolling is now very slow when dragging the thumb quickly.  I strongly suspect display throttling or coalesced updates.
Comment 1 Dave Hyatt 2006-05-16 13:38:40 PDT 
This is caused by display throttling.

defaults write com.apple.Safari WebKitThrottleWindowDisplay 0

will make the problems go away.
Comment 2 Tim Omernick 2006-05-16 14:17:48 PDT 
This was caused by my tweak to the window display throttle code to make it remember the last flush time (as opposed to the last display time).

Fixed on TOT by rolling out the change in question.
Comment 3 Dave Hyatt 2006-05-18 00:03:49 PDT 
This is not fixed for me.  With a completely current build I still have horrible scrolling issues.
Comment 4 Dave Hyatt 2006-05-18 02:11:04 PDT 
Pilot error.  Glyph map regression caused horrible slowness in TOT.