GNU bug report logs - #16251
24.3.50; `icomplete-mode' breaks my file opening now

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Package: emacs;

Reported by: Drew Adams <drew.adams <at> oracle.com>

Date: Wed, 25 Dec 2013 05:59:02 UTC

Severity: normal

Found in version 24.3.50

Done: Stefan Monnier <monnier <at> IRO.UMontreal.CA>

Bug is archived. No further changes may be made.

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Message #20 received at 16251 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Daniel Colascione <dancol <at> dancol.org>
Cc: 16251 <at> debbugs.gnu.org, drew.adams <at> oracle.com
Subject: Re: bug#16251: 24.3.50; `icomplete-mode' breaks my file opening now
Date: Wed, 25 Dec 2013 20:02:33 +0200

> Date: Wed, 25 Dec 2013 00:30:07 -0800
> From: Daniel Colascione <dancol <at> dancol.org>
> 
> Why is finding the list of files so slow for you? Don't you experience 
> the same performance problem after typing a character and forcing 
> completions to show up? We call the completion function inside 
> while-no-input, so we should abort the "several seconds" of work as soon 
> as you start typing.

Maybe because input on Windows is not signal-driven, and therefore
while-no-input relies on the Lisp code paying frequent attention to
QUIT.

I tried just now enabling icomplete-mode in "emacs -Q", and can
confirm that "C-x C-f" becomes painfully slow to react to typing in a
large directory, especially with a cold cache.
This bug report was last modified 11 years and 208 days ago.

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