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Re: Low redisplay performance (23 regression)

From: Chong Yidong
Subject: Re: Low redisplay performance (23 regression)
Date: Mon, 20 Apr 2009 18:33:24 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.91 (gnu/linux)

David Reitter <address@hidden> writes:

> I'm wondering if others get the same on other platforms comparing 22
> and 23, or if this is a problem specifically in the NS port (for
> example, with setting drawing color or the like).

On GNU/Linux, I do not experience much of a difference in performance
between Emacs 22 and Emacs 23.

If you are trying to track down the problem, you could first try to see
if the problem is occurring in Lisp or in the C code.  For instance,
does scrolling in buffers trigger GCs?  Is there any difference in
performance if you disable the tool-bar or other parts of the graphical

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