[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Cc-mode font-lock too slow with large file
From: |
Alan Mackenzie |
Subject: |
Re: Cc-mode font-lock too slow with large file |
Date: |
Fri, 18 Oct 2013 19:26:31 +0000 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
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 <address@hidden>, 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).