GNU bug report logs - #26402
25.2; Font rendering extremely slow on any non-default font

Previous Next

Package: emacs;

Reported by: Gennady Uraltsev <gennady.uraltsev <at> gmail.com>

Date: Sat, 8 Apr 2017 13:50:02 UTC

Severity: normal

Found in version 25.2

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

Bug is archived. No further changes may be made.

Full log

Message #26 received at 26402 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: gennady.uraltsev <at> gmail.com
Cc: 26402 <at> debbugs.gnu.org
Subject: Re: bug#26402: 25.2;
 Font rendering extremely slow on any non-default font
Date: Sun, 09 Apr 2017 12:45:54 +0300

> Date: Sun, 09 Apr 2017 08:44:55 +0300
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: 26402 <at> debbugs.gnu.org
> 
> > The profiler profiles are attached.
> 
> The profiles clearly tell the problem is related to font metrics, but
> they don't tell what exactly causes the slow-down or why.  Sorry.

How proficient are you with using GDB?  If I ask you to step through a
certain Emacs function and tell which of its parts is the slow one,
can you do that?  I can give more detailed instructions if needed.

TIA
This bug report was last modified 5 years and 192 days ago.

Previous Next

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