From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Martin Ward Newsgroups: gmane.lisp.guile.bugs Subject: Serious performance issues with 1.9.0 Date: Wed, 15 Jul 2009 11:07:54 +0100 Message-ID: <200907151107.54800.martin@gkc.org.uk> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1247719702 5958 80.91.229.12 (16 Jul 2009 04:48:22 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 16 Jul 2009 04:48:22 +0000 (UTC) To: bug-guile@gnu.org Original-X-From: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Thu Jul 16 06:48:08 2009 Return-path: Envelope-to: guile-bugs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1MRIsV-0006v1-4U for guile-bugs@m.gmane.org; Thu, 16 Jul 2009 06:47:31 +0200 Original-Received: from localhost ([127.0.0.1]:46755 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MRIsU-0001Nk-AQ for guile-bugs@m.gmane.org; Thu, 16 Jul 2009 00:47:30 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MR1PA-0002HB-Gr for bug-guile@gnu.org; Wed, 15 Jul 2009 06:08:04 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MR1P5-0002DA-68 for bug-guile@gnu.org; Wed, 15 Jul 2009 06:08:03 -0400 Original-Received: from [199.232.76.173] (port=56809 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MR1P4-0002D7-On for bug-guile@gnu.org; Wed, 15 Jul 2009 06:07:58 -0400 Original-Received: from mk-outboundfilter-6-a-2.mail.uk.tiscali.com ([212.74.114.16]:34218) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MR1P4-0001Bn-Am for bug-guile@gnu.org; Wed, 15 Jul 2009 06:07:58 -0400 Original-X-Trace: 122469738/mk-outboundfilter-6.mail.uk.tiscali.com/F2S/$F2S-ACCEPTED/f2s-freedom2Surf-customers/195.137.55.119/None/martin@gkc.org.uk X-SBRS: None X-RemoteIP: 195.137.55.119 X-IP-MAIL-FROM: martin@gkc.org.uk X-SMTP-AUTH: X-MUA: KMail/1.8.2 X-IP-BHB: Once X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvYEAF9HXUrDiTd3/2dsb2JhbACBUc58hAkF X-IronPort-AV: E=Sophos;i="4.42,403,1243810800"; d="scan'208";a="122469738" X-IP-Direction: IN Original-Received: from gkc.org.uk (HELO pingu4.martin.home) ([195.137.55.119]) by smtp.f2s.tiscali.co.uk with ESMTP/TLS/RC4-MD5; 15 Jul 2009 11:07:55 +0100 User-Agent: KMail/1.8.2 Content-Disposition: inline X-detected-operating-system: by monty-python.gnu.org: Genre and OS details not recognized. X-Mailman-Approved-At: Thu, 16 Jul 2009 00:46:48 -0400 X-BeenThere: bug-guile@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Errors-To: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.bugs:4265 Running a test program on Guile 1.8.7 takes 100 seconds CPU time. On Guile 1.9.0 (beta) the same program takes 237 seconds CPU time! For comparison: Gambit v4.4.4 takes 60 seconds. SCM version 5e5 takes 20.7 seconds. Hobbit compiled code running under SCM takes 1.1 seconds! There was some talk a few years ago about integrating the Hobbit compiler with Guile: but nothing seems to have come of it. I can send you the code if you like (its the FermaT Transformation System which is released under the GPL) its about 7.7MB of Scheme source, so I didn't want to include it in this message :-) -- Martin martin@gkc.org.uk http://www.cse.dmu.ac.uk/~mward/ Erdos number: 4 G.K.Chesterton web site: http://www.cse.dmu.ac.uk/~mward/gkc/