GNU bug report logs - #78520
31.0.50; Performance issue in dired+isearch with dired-isearch-filenames

Previous Next

Full log

Message #32 received at 78520 <at> debbugs.gnu.org (full text, mbox):

From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: spacibba <at> aol.com, 78520 <at> debbugs.gnu.org, Juri Linkov <juri <at> linkov.net>
Subject: Re: bug#78520: 31.0.50; Performance issue in dired+isearch with
 dired-isearch-filenames
Date: Fri, 23 May 2025 23:09:25 +0200

Eli Zaretskii <eliz <at> gnu.org> writes:

> > Would it be possible to speed this up by searching as usual, but then
> > rejecting matches whose positions don't have the 'filename' property?
> > Or was this tried and found to be not faster?

IIRC (and understand correctly): It had been tried and was faster, but:
we then had dismissed this idea.  One reason was that we wanted to make
^ and $ match the beginning and end of the file names when using regexp
file name isearch.  There were other reasons - lazy highlight, I don't
recall.  There were a few problems, you find it somewhere.  The decision
was not taken lightly - the result was just not convincing, and the
problems not fixable in a sensible way.


Michael.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.