From: skaller <skaller@users.sourceforge.net>
To: "Marcin 'Qrczak' Kowalczyk" <qrczak@knm.org.pl>
Cc: caml-list <caml-list@inria.fr>
Subject: Re: [Caml-list] ackermann test
Date: 10 Feb 2005 02:55:02 +1100 [thread overview]
Message-ID: <1107964501.5022.624.camel@pelican.wigram> (raw)
In-Reply-To: <87vf91kf4h.fsf@qrnik.zagroda>
On Thu, 2005-02-10 at 01:00, Marcin 'Qrczak' Kowalczyk wrote:
> skaller <skaller@users.sourceforge.net> writes:
> > new C w/o old C new Felix old Felix HACKED Ocamlopt Ocamlb
> > y=10 0.5 0.8 1.8 2.9 7 10 0.4 12
> > y=11 7.4 12.5 16 28 55 75 2 50
> > y=12 64 98 113 180 290 370 9 220
>
> A further speedup in C:
>
> __attribute__((regparm(2)))
> int ack(int x, int y) {
> ...
> }
You are certainly not kidding! With that change:
C Felix Ocamlopt
Y=10 0.5 0.8 0.4
Y=11 2.1 9.3 2
Y=12 21.5 87 9
--
John Skaller, mailto:skaller@users.sf.net
voice: 061-2-9660-0850,
snail: PO BOX 401 Glebe NSW 2037 Australia
Checkout the Felix programming language http://felix.sf.net
next prev parent reply other threads:[~2005-02-09 15:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-09 3:57 skaller
2005-02-09 4:09 ` [Caml-list] " Michael Walter
2005-02-09 4:13 ` skaller
2005-02-09 9:26 ` Marcin 'Qrczak' Kowalczyk
2005-02-09 11:17 ` Oliver Bandel
2005-02-09 13:34 ` skaller
2005-02-09 14:00 ` Marcin 'Qrczak' Kowalczyk
2005-02-09 15:55 ` skaller [this message]
2005-02-09 16:51 ` Jon Harrop
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