From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Cecil Westerhof Newsgroups: gmane.emacs.help Subject: Re: Using Emacs Lisp for script writing Date: Tue, 22 Dec 2009 01:06:16 +0100 Organization: Decebal Computing Message-ID: <87y6kv7tzb.fsf@Traian.DecebalComp> References: <87hbrrrl3c.fsf@Traian.DecebalComp> <87vdg09ls9.fsf@Traian.DecebalComp> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1261442485 12237 80.91.229.12 (22 Dec 2009 00:41:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 22 Dec 2009 00:41:25 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Dec 22 01:41:18 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 1NMsoP-0006aW-D3 for geh-help-gnu-emacs@m.gmane.org; Tue, 22 Dec 2009 01:41:17 +0100 Original-Received: from localhost ([127.0.0.1]:37081 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NMsoP-0002Fy-FK for geh-help-gnu-emacs@m.gmane.org; Mon, 21 Dec 2009 19:41:17 -0500 Original-Path: news.stanford.edu!usenet.stanford.edu!goblin1!goblin.stu.neva.ru!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Original-Newsgroups: gnu.emacs.help X-Homepage: http://www.decebal.nl/ User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.3 (gnu/linux) Cancel-Lock: sha1:OHk0m8M0ayJPaN2rw89mFjPAEQ0= Original-Lines: 34 Original-NNTP-Posting-Host: 84.53.123.169 Original-X-Trace: 1261440376 news.xs4all.nl 22938 decebal/[::ffff:84.53.123.169]:18291 Original-X-Complaints-To: abuse@xs4all.nl Original-Xref: news.stanford.edu gnu.emacs.help:175714 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:70788 Archived-At: Sam Steingold writes: >>> I use clisp for all scripting, interactive and not. >>> Common Lisp is more powerful than Emacs Lisp and clisp is faster than >>> emacs. >> >> I have been experimenting with clisp. But I think that Emacs Lisp does a >> pretty good job. I translated a script I wrote in Emacs Lisp to CL. The >> Emacs Lisp version needed 51 seconds on a certain data set. When using >> clisp with the converted code, clisp needs 79 seconds. That is more as >> 50% longer. >> > > did you compile the CL code? > if it is a script, you might want to add "-C" to the "#!/.../clisp" line > to enable on-the-fly compilation. Yes, I did. I call my code mostly with clisp -C. But your tip is valuable. When calling as a script without the -C the script takes 2:35 and with the -C it takes 1:19. The only problem is that I always use: #!/usr/bin/env clisp That is not possible with -C, so now I have to use: #!/usr/bin/clisp -C It is not a big deal, but when the script is put on another system and on this system clisp is in another location, the script has to be modified (or a link has to be created). But halving the execution time is important enough. -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof