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Re: Low redisplay performance (23 regression)

From: David Reitter
Subject: Re: Low redisplay performance (23 regression)
Date: Tue, 21 Apr 2009 11:30:39 -0400

On Apr 21, 2009, at 10:56 AM, William Xu wrote:

David Reitter <address@hidden> writes:

With font-lock-mode (in c-mode) enabled, the difference is even larger:

About 2.5 seconds in Emacs 22, and more than 7 seconds in 23/NS.

Is my macbook too fast?  With font-lock-mode enabled (23/NS), page
scrolling in buffer emacs.c responds nearly instantly.  I see no delay
at all.

I can't see a delay when scrolling just one page. The above figures are for scrolling page-wise through the whole buffer.

I've tried building with -O9 and tune settings for the CPU - this doesn't see to do much.

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