From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: ludo@gnu.org (Ludovic =?iso-8859-1?Q?Court=E8s?=) Newsgroups: gmane.lisp.guile.devel Subject: Re: guile performance - Ackermann function: way slower than emacs, slower still if compiled Date: Sat, 08 Aug 2009 23:52:46 +0200 Message-ID: <87ab2aotw1.fsf@gnu.org> References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1249768399 15877 80.91.229.12 (8 Aug 2009 21:53:19 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 8 Aug 2009 21:53:19 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Sat Aug 08 23:53:13 2009 Return-path: Envelope-to: guile-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1MZtqi-00015i-0X for guile-devel@m.gmane.org; Sat, 08 Aug 2009 23:53:12 +0200 Original-Received: from localhost ([127.0.0.1]:33587 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MZtqh-00038m-DX for guile-devel@m.gmane.org; Sat, 08 Aug 2009 17:53:11 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MZtqf-00038h-PU for guile-devel@gnu.org; Sat, 08 Aug 2009 17:53:09 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MZtqb-00038T-89 for guile-devel@gnu.org; Sat, 08 Aug 2009 17:53:09 -0400 Original-Received: from [199.232.76.173] (port=43217 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MZtqb-00038K-6S for guile-devel@gnu.org; Sat, 08 Aug 2009 17:53:05 -0400 Original-Received: from main.gmane.org ([80.91.229.2]:41401 helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1MZtqa-0006df-Pj for guile-devel@gnu.org; Sat, 08 Aug 2009 17:53:04 -0400 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1MZtqW-00032A-C7 for guile-devel@gnu.org; Sat, 08 Aug 2009 21:53:00 +0000 Original-Received: from reverse-83.fdn.fr ([80.67.176.83]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 08 Aug 2009 21:53:00 +0000 Original-Received: from ludo by reverse-83.fdn.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 08 Aug 2009 21:53:00 +0000 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 13 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: reverse-83.fdn.fr X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 21 Thermidor an 217 de la =?iso-8859-1?Q?R=E9volutio?= =?iso-8859-1?Q?n?= X-PGP-Key-ID: 0xEA52ECF4 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 821D 815D 902A 7EAB 5CEE D120 7FBA 3D4F EB1F 5364 X-OS: x86_64-unknown-linux-gnu User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux) Cancel-Lock: sha1:cLW+J31gpcPrW/0Goh851kro7h4= X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.devel:9041 Archived-At: Hello! Andy Wingo writes: > Perhaps the deal is that 1+ is not being inlined. It seems to be calling > out to the 1+ procedure, which is a primitive, actually making it a > bit slower. I'll see what I can do. Currently, invoking subrs conses, which is Bad(TM). Code that keeps invoking `1+' and `1-' must suffer from this. Thanks, Ludo'.