GNU logs - #39130, boring messages


Message sent to bug-guile@HIDDEN:


X-Loop: help-debbugs@HIDDEN
Subject: bug#39130: Speed up C Foreign Function Interface
Resent-From: Amirouche <amirouche@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-guile@HIDDEN
Resent-Date: Tue, 14 Jan 2020 12:16:01 +0000
Resent-Message-ID: <handler.39130.B.157900413223283 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
X-GNU-PR-Message: report 39130
X-GNU-PR-Package: guile
X-GNU-PR-Keywords: 
To: 39130 <at> debbugs.gnu.org
X-Debbugs-Original-To: bug-guile@HIDDEN
Received: via spool by submit <at> debbugs.gnu.org id=B.157900413223283
          (code B ref -1); Tue, 14 Jan 2020 12:16:01 +0000
Received: (at submit) by debbugs.gnu.org; 14 Jan 2020 12:15:32 +0000
Received: from localhost ([127.0.0.1]:60756 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>)
	id 1irL6V-00063P-Ul
	for submit <at> debbugs.gnu.org; Tue, 14 Jan 2020 07:15:32 -0500
Received: from lists.gnu.org ([209.51.188.17]:51860)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <amirouche@HIDDEN>) id 1irL6O-00063B-Pa
 for submit <at> debbugs.gnu.org; Tue, 14 Jan 2020 07:15:26 -0500
Received: from eggs.gnu.org ([2001:470:142:3::10]:34377)
 by lists.gnu.org with esmtp (Exim 4.90_1)
 (envelope-from <amirouche@HIDDEN>) id 1irL6J-0005wE-OE
 for bug-guile@HIDDEN; Tue, 14 Jan 2020 07:15:20 -0500
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org
X-Spam-Level: 
X-Spam-Status: No, score=0.1 required=5.0 tests=BAYES_50,RCVD_IN_DNSWL_LOW
 autolearn=disabled version=3.3.2
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
 (envelope-from <amirouche@HIDDEN>) id 1irL6E-00078r-FA
 for bug-guile@HIDDEN; Tue, 14 Jan 2020 07:15:15 -0500
Received: from relay11.mail.gandi.net ([217.70.178.231]:38401)
 by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)
 (Exim 4.71) (envelope-from <amirouche@HIDDEN>) id 1irL6E-00078L-8y
 for bug-guile@HIDDEN; Tue, 14 Jan 2020 07:15:10 -0500
Received: from webmail.gandi.net (webmail14.sd4.0x35.net [10.200.201.14])
 (Authenticated sender: amirouche@HIDDEN)
 by relay11.mail.gandi.net (Postfix) with ESMTPA id 549B9100006
 for <bug-guile@HIDDEN>; Tue, 14 Jan 2020 12:15:06 +0000 (UTC)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII;
 format=flowed
Content-Transfer-Encoding: 7bit
Date: Tue, 14 Jan 2020 12:15:06 +0000
From: Amirouche <amirouche@HIDDEN>
Message-ID: <8bbf48a40a280fb121bb5036ffd46b70@HIDDEN>
X-Sender: amirouche@HIDDEN
User-Agent: Roundcube Webmail/1.3.8
X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]
 [fuzzy]
X-Received-From: 217.70.178.231
X-Spam-Score: -1.6 (-)
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -2.6 (--)

I benchmarked Chez Scheme vs. Guile. Guile is 3 to 5 times slower
than Chez.  I attribute that mostly to C Foreign Function Interface.

The application will parse a text file (n-turtle format) and store
in an embedded database (wiredtiger).  Most the CPU time should be
spent during parsing [0], then packing scheme objects into
bytevectors [1] and at last C FFI.

[0] 
https://github.com/amirouche/nomunofu/blob/master/nomunofu/index.scm#L13

[1] 
https://github.com/amirouche/nomunofu/blob/master/nomunofu/okvs/pack.scm#L208

The chez code is in wip-chez branch.

The Guile FFI code of that particular application can be improved.

Still, I read on IRC that there is some interests to improve C FFI,
that is why I fill this issue to be able to keep track of it.

One step forward, would be to have C FFI benchmarks that are easy
to run with Chez, Guile, and Gambit.

Anyone up for the task?




Message sent:


Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Mailer: MIME-tools 5.505 (Entity 5.505)
Content-Type: text/plain; charset=utf-8
X-Loop: help-debbugs@HIDDEN
From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Amirouche <amirouche@HIDDEN>
Subject: bug#39130: Acknowledgement (Speed up C Foreign Function Interface)
Message-ID: <handler.39130.B.157900413223283.ack <at> debbugs.gnu.org>
References: <8bbf48a40a280fb121bb5036ffd46b70@HIDDEN>
X-Gnu-PR-Message: ack 39130
X-Gnu-PR-Package: guile
Reply-To: 39130 <at> debbugs.gnu.org
Date: Tue, 14 Jan 2020 12:16:02 +0000

Thank you for filing a new bug report with debbugs.gnu.org.

This is an automatically generated reply to let you know your message
has been received.

Your message is being forwarded to the package maintainers and other
interested parties for their attention; they will reply in due course.

Your message has been sent to the package maintainer(s):
 bug-guile@HIDDEN

If you wish to submit further information on this problem, please
send it to 39130 <at> debbugs.gnu.org.

Please do not send mail to help-debbugs@HIDDEN unless you wish
to report a problem with the Bug-tracking system.

--=20
39130: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D39130
GNU Bug Tracking System
Contact help-debbugs@HIDDEN with problems



Last modified: Tue, 14 Jan 2020 12:30:02 UTC

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997 nCipher Corporation Ltd, 1994-97 Ian Jackson.