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: Putting an end to "compiled closures" Date: Mon, 02 Mar 2009 00:34:18 +0100 Message-ID: <87bpskzukl.fsf@gnu.org> References: <87ljs7cjtf.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1235950487 20568 80.91.229.12 (1 Mar 2009 23:34:47 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 1 Mar 2009 23:34:47 +0000 (UTC) To: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Mon Mar 02 00:36:03 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 1LdvCU-0006gP-BT for guile-devel@m.gmane.org; Mon, 02 Mar 2009 00:36:02 +0100 Original-Received: from localhost ([127.0.0.1]:41964 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LdvB9-0006xg-Be for guile-devel@m.gmane.org; Sun, 01 Mar 2009 18:34:39 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LdvB3-0006xM-3v for guile-devel@gnu.org; Sun, 01 Mar 2009 18:34:33 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LdvB1-0006x1-N2 for guile-devel@gnu.org; Sun, 01 Mar 2009 18:34:32 -0500 Original-Received: from [199.232.76.173] (port=33675 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LdvB1-0006wy-HT for guile-devel@gnu.org; Sun, 01 Mar 2009 18:34:31 -0500 Original-Received: from main.gmane.org ([80.91.229.2]:44530 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 1LdvB1-0004ll-4q for guile-devel@gnu.org; Sun, 01 Mar 2009 18:34:31 -0500 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1LdvAz-0003aP-La for guile-devel@gnu.org; Sun, 01 Mar 2009 23:34:29 +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 ; Sun, 01 Mar 2009 23:34:29 +0000 Original-Received: from ludo by reverse-83.fdn.fr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sun, 01 Mar 2009 23:34:29 +0000 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 38 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: 12 =?iso-8859-1?Q?Vent=F4se?= an 217 de la =?iso-8859-1?Q?R=E9volution?= 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: i686-pc-linux-gnu User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.90 (gnu/linux) Cancel-Lock: sha1:p+bNaqeZDjliFTSslA2xT1Rfl4s= 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:8202 Archived-At: Hello! ludo@gnu.org (Ludovic Courtès) writes: > The attached patch creates a new type tag, `scm_tc7_gsubr', whereby the > 24 MSBs are used to store gsubr arity information as returned by > `SCM_GSUBR_MAKTYPE ()'. This makes cclos useless, which simplifies the > code and reduces the overhead when creating and invoking such > procedures. I committed it: http://git.savannah.gnu.org/gitweb/?p=guile.git;a=commitdiff;h=e20d7001c3f7150400169fecb0bf0eefdf122fe2 http://git.savannah.gnu.org/gitweb/?p=guile.git;a=commitdiff;h=54d14084e229f90b75475a866e3f458be30fa233 I also committed a simple benchmark for subr invocation [0]. The result is as follows (truncated for clarity): - before patch ("subr.bm: subr invocation: simple subr" 700000 total 0.99) ("subr.bm: subr invocation: generic subr" 700000 total 1.77) ("subr.bm: subr application: simple subr" 700000 total 1.75) ("subr.bm: subr application: generic subr" 700000 total 2.31) - after patch ("subr.bm: subr invocation: simple subr" 700000 total 0.98) ("subr.bm: subr invocation: generic subr" 700000 total 1.38) ("subr.bm: subr application: simple subr" 700000 total 1.76) ("subr.bm: subr application: generic subr" 700000 total 2.16) That is, roughly a 20% improvement on gsubr invocation. Thanks, Ludo'. [0] http://git.savannah.gnu.org/gitweb/?p=guile.git;a=commitdiff;h=b786a5bbf825f61e04ccd9a54f93cb1e40ac67d9