From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: pjb@informatimago.com (Pascal J. Bourguignon) Newsgroups: gmane.emacs.help Subject: Re: Poor Performance w/ Long Files Date: Thu, 20 Aug 2009 15:50:07 +0200 Organization: Anevia SAS Message-ID: <7cr5v64msw.fsf@pbourguignon.anevia.com> References: <87skfnwdkv.fsf@galatea.local> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1250779303 28727 80.91.229.12 (20 Aug 2009 14:41:43 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 20 Aug 2009 14:41:43 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Aug 20 16:41:37 2009 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1Me8pc-00015o-HU for geh-help-gnu-emacs@m.gmane.org; Thu, 20 Aug 2009 16:41:36 +0200 Original-Received: from localhost ([127.0.0.1]:45565 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Me8pb-0004XN-Ty for geh-help-gnu-emacs@m.gmane.org; Thu, 20 Aug 2009 10:41:35 -0400 Original-Newsgroups: gnu.emacs.help Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en X-Disabled: X-No-Archive: no User-Agent: Gnus/5.101 (Gnus v5.10.10) Emacs/22.2 (gnu/linux) Cancel-Lock: sha1:Specxrc6ZGPJb40j8XOJCwnNptA= Original-Lines: 42 Original-NNTP-Posting-Date: 20 Aug 2009 15:50:08 MEST Original-NNTP-Posting-Host: 88.170.236.224 Original-X-Trace: 1250776208 news-2.free.fr 426 88.170.236.224:56673 Original-X-Complaints-To: abuse@proxad.net Original-Path: news.stanford.edu!newsfeed.stanford.edu!newsserver.news.garr.it!kanaga.switch.ch!switch.ch!news.in2p3.fr!in2p3.fr!feed.ac-versailles.fr!exabot.com!proxad.net!feeder1-2.proxad.net!cleanfeed2-a.proxad.net!nnrp4-1.free.fr!not-for-mail Original-Xref: news.stanford.edu gnu.emacs.help:172144 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:67299 Archived-At: Tim Visher writes: > On Wed, Aug 19, 2009 at 8:09 PM, Pascal J. > Bourguignon wrote: >> Tim Visher writes: >> >>> Hello Everyone, >>> >>> I work with many large files (+10,000,000 ASCII characters) at work >>> and I've noticed that Emacs does extremely poorly with those files. I >>> have taken to opening them up in something like Notepad++ to look at >>> them and editing the programs that operate on them in Emacs. I'd love >>> to be able to just stick with Emacs. >>> >>> Is there something that I just haven't set yet or does Emacs have >>> trouble with large files? >> >> Perhaps you could disable some emacs options that might take time, >> like font-locking. Basically, if you edit this files in fundamental-mode, >> with truncate-line turned off with C-u 1 M-x toggle-truncate-lines RET and >> with font-locking turned off with C-u -1 M-x font-lock-mode RET, >> it should go faster. > > This fixed things. I hadn't even thought of it but the file I was > opening tried to open in tcl and pabbrev modes and that's what seems > to have caused the slowdown. Putting thing back into Fundamental with > pabbrev off quickened things right up. > > Is there a way to manually force a file to open in a particular mode > without setting an auto-mode in .emacs? M-x find-file-literally RET It's written right down at the bottom of the help page for find-file ;-) To visit a file without any kind of conversion and without automatically choosing a major mode, use M-x find-file-literally. -- __Pascal Bourguignon__