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: Changing the Emacs engine to Guile Date: Mon, 21 Jun 2010 21:22:17 +0200 Organization: Decebal Computing Message-ID: <87lja81992.fsf@linux-lqcw.site> References: <87fx0g2yu6.fsf@linux-lqcw.site> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: dough.gmane.org 1291837764 10824 80.91.229.12 (8 Dec 2010 19:49:24 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 8 Dec 2010 19:49:24 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Dec 08 20:49:21 2010 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 4.69) (envelope-from ) id 1PQQ0s-00061s-8r for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Dec 2010 20:49:18 +0100 Original-Received: from localhost ([127.0.0.1]:52513 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PQQ0r-0003PP-Lg for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Dec 2010 14:49:17 -0500 Original-Path: usenet.stanford.edu!news.tele.dk!news.tele.dk!small.news.tele.dk!newsgate.cistron.nl!newsgate.news.xs4all.nl!194.109.133.85.MISMATCH!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Original-Newsgroups: gnu.emacs.help X-Homepage: http://www.decebal.nl/ User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) Cancel-Lock: sha1:17dyxhpP6CRJbbVBPLQdx2kLmys= Original-Lines: 19 Original-NNTP-Posting-Host: 84.53.123.169 Original-X-Trace: 1277148099 news.xs4all.nl 22943 decebal/[::ffff:84.53.123.169]:28805 Original-X-Complaints-To: abuse@xs4all.nl Original-Xref: usenet.stanford.edu gnu.emacs.help:179146 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:75922 Archived-At: Op maandag 21 jun 2010 17:24 CEST schreef Cecil Westerhof: > I read somewhere (I think this list) that there is the idea to change > the engine from Emacs to Guile. I am afraid that this could result in a > very big performance hit. A little script I wrote in Emacs Lisp takes 43 > seconds. When implemented in Guile it takes 102 seconds. So almost 2½ > times as long. So I was wondering: why do they want to change the Emacs > engine? Some other metrics: Common Lisp 45 seconds Perl 27 seconds (with a Perl optimisation) AWK 29 seconds sed 260 seconds -- Cecil Westerhof Senior Software Engineer LinkedIn: http://www.linkedin.com/in/cecilwesterhof