From: Oleg <oleg_inconnu@myrealbox.com>
To: Xavier Leroy <xavier.leroy@inria.fr>, caml-list@inria.fr
Subject: Re: Coyote Gulch test in Caml (was Re: [Caml-list] speed )
Date: Sat, 18 Jan 2003 17:49:47 -0500 [thread overview]
Message-ID: <200301181749.48295.oleg_inconnu@myrealbox.com> (raw)
In-Reply-To: <20030104193118.A26208@pauillac.inria.fr>
On Saturday 04 January 2003 01:31 pm, Xavier Leroy wrote:
> Apparently, the ocamlopt-generated code
> offers less instruction-level parallelism than the g++-generated code
> for the float computations. Still, I haven't really understood where
> the factor of 2 comes from.
It's been a couple of weeks. I'm wondering if you got any new insights into
this?
Just as wild guess: the code contains calls to "sin" and "cos" on the same
value. Perhaps GCC manages to optimize those into one call to "sincos"
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next prev parent reply other threads:[~2003-01-18 22:50 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-03 16:00 [Caml-list] speed onlyclimb
2003-01-03 11:38 ` [Caml-list] speed Clemens Hintze
2003-01-03 11:47 ` [Caml-list] speed Noel Welsh
2003-01-02 16:45 ` Chet Murthy
2003-01-03 13:32 ` Xavier Leroy
2003-01-02 17:52 ` Chet Murthy
2003-01-03 14:53 ` Sven Luther
2003-01-03 15:28 ` Erol Akarsu
2003-01-02 17:53 ` Coyote Gulch test in Caml (was Re: [Caml-list] speed ) Chet Murthy
2003-01-03 15:10 ` Shawn Wagner
2003-01-03 15:56 ` Oleg
2003-01-04 18:31 ` Xavier Leroy
2003-01-18 22:49 ` Oleg [this message]
2003-01-18 23:50 ` Shawn Wagner
2003-01-20 21:23 ` David Chase
2003-01-20 21:39 ` Nickolay Semyonov-Kolchin
2003-01-21 0:54 ` Brian Hurt
2003-01-21 13:09 ` David Chase
2003-01-21 13:15 ` Daniel Andor
2003-01-21 20:26 ` Nickolay Semyonov-Kolchin
2003-01-19 10:33 ` Siegfried Gonzi
2003-01-19 10:34 ` Siegfried Gonzi
2003-01-21 9:56 ` [Caml-list] Re: Coyote Gulch test in Caml Xavier Leroy
2003-01-21 15:57 ` Brian Hurt
2003-01-27 16:58 ` Daniel Andor
2003-01-28 8:27 ` Christian Lindig
2003-01-05 1:13 ` [Caml-list] speed Brian Hurt
2003-01-05 1:48 ` Michael Vanier
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