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Re: ediff-next-difference very slow

From: Roland Winkler
Subject: Re: ediff-next-difference very slow
Date: Sat, 20 Apr 2002 14:02:23 +0200

On Fri Apr 19 2002 Michael Kifer wrote:
> To help us find the culprit, we need more info.
> Do you do something unusual, such as running long ediff (not
> emacs) sessions that last several days?

No, I don't have any long ediff sessions. Typically, they do not
last longer than an hour. And my ediff buffers are small, typically
less than 100kb.

> Do you see the slowdown regardless of whether you used ediff in
> the prior days or it depends on how many times you used ediff
> within the same emacs session?

This is more difficult to say because I haven't done any bookkeeping
yet. But I'll watch these thing more carefully and let you know.

What I can say is that I don't use ediff very often. I need it once
every two or three days or so (and, as I said, I have short ediff
session with small buffers).

> Finally, did you notice a similar slowdown with other emacs
> applications?

Since I upgraded from GNU emacs 20 to 21 it SEEMS to me that emacs
in general has slowed down for me. But I haven't been able yet to
pin this down. The present bug report on ediff was actually the
first example where I could be a little more explicit.

Usually, in my emacs sessions I am loading and using a bunch of
packages which make it very difficult to pin down the culprit. But
there are several things I am trying right now, and I'll keep you


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