[wp-trac] [WordPress Trac] #17688: Backspace Lag in Visual Editor under FF 4 with Win 7

[WordPress Trac]

#17688: Backspace Lag in Visual Editor under FF 4 with Win 7
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 Reporter:  macmanx       |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  TinyMCE       |    Version:  3.1.3
 Severity:  normal        |   Keywords:
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 Two of our users on WordPress.com have so far reported that backspacing is
 strangely slow in the Visual editor when using Firefox 4.0.1 while
 hardware acceleration is active.

 Both users are running Windows 7, but with different hardware.

 I was unable to duplicate the problem under Windows Vista, so this looks
 like it's specific to just Windows 7. Co-worker Veselin Nikolov noticed a
 16 millisecond lag when backspacing on his rather powerful Windows 7
 machine, which could certainly magnify itself on much slower PCs.

 He tested again on a self-hosted 3.1.3 blog and noticed a 12 millisecond
 lag, so this appears to definitely be related to TinyMCE, though I suppose
 it could also be a bug with Firefox 4 running under Windows 7.

 To reproduce, type something the Visual editor via Firefox 4 under Windows
 7 with hardware acceleration active, and start backspacing.

 Original report:  http://en.forums.wordpress.com/topic/very-slow-typing-
 and-slow-dashboard

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Ticket URL: <http://core.trac.wordpress.org/ticket/17688>
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