GNU bug report logs - #18696
Emacs freezes for a while visitin Conf (.ini)) buffers

Previous Next

Full log

Message #14 received at 18696 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
To: Angelo Graziosi <angelo.graziosi <at> alice.it>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 18696 <at> debbugs.gnu.org
Subject: Re: bug#18696: Emacs freezes for a while visitin Conf (.ini)) buffers
Date: Tue, 14 Oct 2014 14:43:49 -0400

> Indeed.. it is this in my initialization file:
>   (which-function-mode t)
> and, considering the structure of that setup.ini file, this 'freezing' could
> be expected..

Actually IIUC which-function-mode shouldn't cause such a slow down.
If it does, it's probably because the major mode doesn't have special
support for which-function-mode, so it falls back on using imenu's
support, i.e. it needs to scan the whole buffer.

This said, scanning the whole buffer shouldn't be that sow, unless you
really have very many sections.  So it might also simply be a bug in the
way the major mode supports imenu (e.g. the regexp used is inefficient).


        Stefan

Previous Next

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