GNU bug report logs - #32523
27.0.50; Emacs hangs when killing rectangle

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Package: emacs;

Reported by: Joseph Mingrone <jrm <at> ftfl.ca>

Date: Sat, 25 Aug 2018 01:01:01 UTC

Severity: normal

Merged with 3219, 4123, 9589, 13675, 15555, 18530, 22143, 24523, 30457, 40007

Found in versions 23.1, 24.2, 24.2.93, 24.3, 24.5, 26.0.91, 27.0.50, 28.0.50

Fixed in version 29.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

Full log


Message #17 received at 32523 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Kangas <stefan <at> marxist.se>
Cc: jrm <at> ftfl.ca, 32523 <at> debbugs.gnu.org
Subject: Re: bug#32523: 27.0.50; Emacs hangs when killing rectangle
Date: Fri, 21 Aug 2020 16:42:00 +0300
> From: Stefan Kangas <stefan <at> marxist.se>
> Date: Fri, 21 Aug 2020 04:51:37 -0700
> Cc: Eli Zaretskii <eliz <at> gnu.org>, 32523 <at> debbugs.gnu.org
> 
> > The rectangle does eventually get cut for me as well.  Ignoring speed,
> > the problem is that Emacs is unusable afterwards.  For example, if I go
> > away for an hour or so, then return, the Emacs process will still be
> > using something close to 100% CPU and trying to doing something simple,
> > like moving the point forward, may take minutes.
> 
> Are you still seeing this behaviour?

I bet he does.  the problem with the slow responses after cutting the
rectangle is that Emacs performs redisplay each type the user types
some character.  The redisplay can be very small and optimized, but it
can also be much more thorough; for example, typing "M-x" typically
triggers a thorough redisplay.  Each time we need to perform a
non-trivial redisplay, the same problem with long lines hits again.




This bug report was last modified 2 years and 298 days ago.

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