From: Dmitry Antipov <dmantipov@yandex.ru>
To: Randy Yates <yates@digitalsignallabs.com>
Cc: emacs-devel@gnu.org
Subject: Re: emacs takes exhorbitantly long to read long, one-line files.
Date: Mon, 20 May 2013 12:40:58 +0400 [thread overview]
Message-ID: <5199E19A.3020503@yandex.ru> (raw)
In-Reply-To: <87ppwn62yr.fsf@digitalsignallabs.com>
On 05/19/2013 07:52 AM, Randy Yates wrote:
> I have a file (a matlab .m file of a vector of data) that is all on
> one line and about 2 MB:
>
> http://www.digitalsignallabs.com/dspin.m
>
> emacs takes a very long time (6 minutes?) to read this in, and
> practically becomes unusable in the mean time.
In this particular case, Emacs just thinks that your file is an Objective-C
source code, and tries to fontify it accordingly. This attempt implies a lot
of buffer scans, and substantial amount of them may be slow for the very
long lines. Since I suspect that you don't want to edit this as Obj-C, try:
emacs --eval "(setq auto-mode-alist (cons '(\"\\.m\" . fundamental-mode) auto-mode-alist))" dspin.m
Dmitry
next prev parent reply other threads:[~2013-05-20 8:40 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-19 3:52 emacs takes exhorbitantly long to read long, one-line files Randy Yates
2013-05-19 14:41 ` Eli Zaretskii
2013-05-20 8:40 ` Dmitry Antipov [this message]
2013-05-20 11:03 ` Randy Yates
2013-05-20 11:27 ` Dmitry Antipov
2013-05-20 14:32 ` Karl Fogel
2013-05-20 15:59 ` Eli Zaretskii
2013-05-20 16:25 ` Dmitry Antipov
2013-05-20 16:41 ` Eli Zaretskii
2013-05-20 21:43 ` Randy Yates
2013-05-21 2:21 ` Stephen J. Turnbull
2013-05-21 2:47 ` Eli Zaretskii
2013-05-21 7:57 ` Ulrich Mueller
2013-05-21 10:20 ` Dmitry Antipov
2013-05-21 12:06 ` Ulrich Mueller
2013-05-21 17:21 ` Eli Zaretskii
2013-05-21 17:18 ` Eli Zaretskii
2013-05-21 17:55 ` Eli Zaretskii
2013-05-21 18:03 ` Randy Yates
2013-05-21 18:28 ` Dmitry Antipov
2013-05-22 5:10 ` Ulrich Mueller
2013-05-22 14:51 ` Eli Zaretskii
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