GNU bug report logs - #51143
29.0.50; Long delay after M-x commandname

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Message #11 received at 51143 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Eduardo Ochs <eduardoochs <at> gmail.com>,
 Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: michael_heerdegen <at> web.de, 51143 <at> debbugs.gnu.org
Subject: Re: bug#51143: 29.0.50; Long delay after M-x commandname
Date: Tue, 12 Oct 2021 16:39:32 +0300

> From: Eduardo Ochs <eduardoochs <at> gmail.com>
> Date: Mon, 11 Oct 2021 23:44:57 -0300
> 
> I noticed that when I was invoking commands with M-x commandname and
> using tab for completing parts of the name then sometimes there would
> be a long delay - sometimes as long as 10 seconds, but my laptop is
> quite old - between the RET and the execution of the command. This
> delay was big on emacs28 and practically imperceptible on emacs27, and
> it seemed that it was getting worse in more recent versions of
> emacs28/29.
> 
> I discussed this on help-gnu-emacs before submitting a bug report. The
> main links are these ones:
> 
> https://lists.gnu.org/archive/html/help-gnu-emacs/2021-10/msg00232.html Edrx
> https://lists.gnu.org/archive/html/help-gnu-emacs/2021-10/msg00259.html MH
> https://lists.gnu.org/archive/html/help-gnu-emacs/2021-10/msg00261.html Edrx 2
> https://lists.gnu.org/archive/html/help-gnu-emacs/2021-10/msg00265.html MH 2
> 
> Let me summarize. The part of "M-x commandname" that takes a long time
> is the call to `execute-extended-command--shorter' - like this:
> 
>   (execute-extended-command--shorter "find-eev-quick-intro" "find-eev-qui")
> 
> Michael Heerdegen was able to reproduce the problem and profile it.
> See this message:
> 
> https://lists.gnu.org/archive/html/help-gnu-emacs/2021-10/msg00265.html MH 2

Stefan, any advice?

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