From: Eli Zaretskii <eliz@gnu.org>
To: Antoine Levitt <antoine.levitt@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: window-scroll-functions and performance
Date: Mon, 15 Aug 2011 23:28:38 +0300 [thread overview]
Message-ID: <831uwmv2q1.fsf@gnu.org> (raw)
In-Reply-To: <878vqu1mof.fsf@gmail.com>
> From: Antoine Levitt <antoine.levitt@gmail.com>
> Date: Mon, 15 Aug 2011 21:48:00 +0200
>
> I'm trying to track down the cause of performance issues in erc. One
> problem is with erc-scroll-to-bottom. Here's a simple test: emacs -Q,
> M-x erc, accept the default, M-x erc-scrolltobottom-mode, C-l to force
> scrolltobottom to act, M-x elp-instrument-package erc, press and
> maintain "a" for a while, then M-x elp-results. erc-scrolltobottom gets
> called a lot, and that causes noticeable slowdowns: display doesn't keep
> up with input, and CPU consumption jumps. This gets my emacs to 100% CPU
> just inserting text.
Does the problem go away if you turn bidi-display-reordering off?
Does it go away if you use Emacs 23.3?
If the answer to any of these 2 questions is YES, please try to come
up with a reproducible test case that doesn't involve erc, and I will
take a look.
Thanks.
next prev parent reply other threads:[~2011-08-15 20:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-15 19:48 window-scroll-functions and performance Antoine Levitt
2011-08-15 20:28 ` Eli Zaretskii [this message]
2011-08-15 21:02 ` Antoine Levitt
2011-08-16 5:56 ` Thierry Volpiatto
2011-08-16 6:38 ` Eli Zaretskii
2011-08-16 8:03 ` Thierry Volpiatto
2011-08-16 9:12 ` Eli Zaretskii
2011-08-16 6:49 ` Eli Zaretskii
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