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Re: Odd slowness in grep and dired modes

From: Smith_RS
Subject: Re: Odd slowness in grep and dired modes
Date: Fri, 21 Mar 2014 09:41:33 -0700 (PDT)
User-agent: G2/1.0

On Friday, March 21, 2014 1:57:07 AM UTC-7, Eli Zaretskii wrote:
> Sorry, I don't understand: lag between which events?

Both dired and grep-find give you a list of targets that you can select via 
mouse-1 or mouse-2, which causes the target file to open in another window. 
While this list is active you can mouse-over the targets and Emacs will change 
the face from the default face to the highlighted face, this is the part that's 
slowing down.

> Did this start lately?  If so, what changed around the time this
> started happening?

It started happening when I started using grep-find mode more intensely, to 
search through hundreds or even thousands of files. I then started noticing 
dired do the same thing but not to the same extent because I wasn't working 
with super-long lists of results.

I'm a heavy org-mode user so I often need to find something in a notes file 
that's several years old (grepping through old notes files is basically how I 
do my life. :)

> Also, does this happen in "emacs -Q"?  If not, I'd suspect some
> customization you have on your .emacs init file.


(NOTE: See below, Drew's idea worked. Thanks for your help)

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