GNU bug report logs - #45379
28.0.50; Degraded Performance of describe-buffer-bindings

Previous Next

Full log

Message #8 received at 45379 <at> debbugs.gnu.org (full text, mbox):

From: "Sheng Yang" <styang <at> fastmail.com>
To: "Juri Linkov" <juri <at> linkov.net>
Cc: Stephen Berman <stephen.berman <at> gmx.net>, Stefan Kangas <stefan <at> marxist.se>,
 martin rudalics <rudalics <at> gmx.at>, Stefan Monnier <monnier <at> iro.umontreal.ca>,
 Eli Zaretskii <eliz <at> gnu.org>, 45379 <at> debbugs.gnu.org
Subject: Re: 28.0.50; Degraded Performance of describe-buffer-bindings
Date: Fri, 08 Jan 2021 10:47:47 -0600

[Message part 1 (text/plain, inline)]

Hi Juri,

I recently came across a regression of performance in Emacs for describe bindings, which I have reported as bug#45379. After bisection, the offending seems to be a commit a649034336 you pushed in November 2020, to fix bug#5423. Since I have received no reply after bug#45379 was reported (more than 2 weeks), I guess it's better to contact you and cc every participants of bug#5423. I am including the description of the bug report here for your convenience.

> `describe-buffer-bindings` has become significantly slower since the
following commit

a649034336 * bad Don't show key ranges if shadowed by different commands

This also makes `describe-bindings` and anything depending on it hardly
usable. For me, it takes about 2 seconds on vanilla Emacs in an org-mode
buffer, and a few minutes on my Emacs configuration (was almost instant
before the offending commit).
> 

Sheng Yang(杨圣), PhD candidate
Computer Science Department
University of Maryland, College Park
E-mail: styang <at> fastmail.com
E-mail (old but still used): yangsheng6810 <at> gmail.com

[Message part 2 (text/html, inline)]

Previous Next

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