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Subject: bug#39130: Speed up C Foreign Function Interface
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From: Amirouche <amirouche@HIDDEN>
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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?
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
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