From: Alan Mackenzie <acm@muc.de>
To: "kona.ming" <kona.ming@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: Cc-mode font-lock too slow with large file
Date: Fri, 18 Oct 2013 19:26:31 +0000 [thread overview]
Message-ID: <20131018192631.GA3012@acm.acm> (raw)
In-Reply-To: <bidroomwd4lxj9mwivoiusbd.1381829234559@email.android.com>
On Tue, Oct 15, 2013 at 05:27:14PM +0800, kona.ming wrote:
> I have a large c file,about 10000 lines. I can't scroll it after open,
> has 2 or 3 seconds lag. The font-lock-maxium-decoration is t, set it to
> 2 will better but still lag. How to making emacs working on the file?
This is not usual in C files. For example, xdisp.c (part of Emacs) is
~30,000 lines long, but scrolls reasonably fast. It may be that there's
something unusual about your file which is making C Mode slow - something
like a very large macro, or a very large enum.
Firstly, could you please tell us what version of Emacs and CC Mode
you're using. (M-x emacs-version and M-x c-version).
Is the lag as bad if you start Emacs as emacs -Q?
Would it be possible for you to send me the file? If so, please send it
to <acm@muc.de>, and tell me anything I need to do to make it slow. Then
I can investigate the problem directly.
> 从三星移动设备发送
--
Alan Mackenzie (Nuremberg, Germany).
prev parent reply other threads:[~2013-10-18 19:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-15 9:27 Cc-mode font-lock too slow with large file kona.ming
2013-10-18 19:26 ` Alan Mackenzie [this message]
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