From: Jon Harrop <jdh30@cam.ac.uk>
To: caml-list@inria.fr
Subject: Re: [Caml-list] help
Date: Mon, 26 Apr 2004 20:13:42 +0100 [thread overview]
Message-ID: <200404261842.59208.jdh30@cam.ac.uk> (raw)
In-Reply-To: <Pine.LNX.4.44.0404251444530.2880-100000@lcmpc4.epfl.ch>
On Sunday 25 April 2004 1:45 pm, Henri DF wrote:
> > I deliberately made "wnum" a reference so that it can be set:
>
> any reason not to make it a mutable ?
No good reason. ;)
I've just been looking at the assembler output from ocamlopt on this. I think
that a mutable record field represents one fewer levels of indirection
compared to a reference record field. On a contrived example, using mutable
is twice as fast.
Comparing a mutable record field to a reference (not in a record), the latter
comes out as slightly quicker in my timings. But I think this is
insignificant as the assembler output seems to be identical.
Cheers,
Jon.
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next prev parent reply other threads:[~2004-04-26 19:17 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-25 16:30 mohammad siddiqui
2004-04-25 1:53 ` mohammad siddiqui
2004-04-25 12:13 ` Jon Harrop
2004-04-25 12:45 ` Henri DF
2004-04-26 19:13 ` Jon Harrop [this message]
2004-04-26 22:38 ` Andrew Lenharth
2004-04-25 16:44 ` [Caml-list] help Brian Hurt
2004-04-25 17:28 ` [Caml-list] help Matt Gushee
2004-04-25 17:06 ` Jon Harrop
2004-04-25 17:39 ` Matt Gushee
2004-04-26 0:45 ` skaller
-- strict thread matches above, loose matches on Subject: below --
2004-04-23 2:31 mohammad siddiqui
2004-04-23 4:17 ` Jon Harrop
2004-04-23 6:52 ` Jean-Christophe Filliatre
2004-04-23 15:43 ` Brian Hurt
2004-04-22 23:34 mohammad siddiqui
2004-04-22 23:57 ` Karl Zilles
2004-04-16 18:04 mohammad siddiqui
2004-04-16 18:59 ` skaller
2004-04-17 0:34 ` Shawn Wagner
2004-04-08 22:57 mohammad siddiqui
2004-04-09 6:56 ` Basile STARYNKEVITCH
2004-04-09 9:04 ` Richard Jones
2002-11-05 12:22 ÀîÒÇ
2002-11-05 13:39 ` Alessandro Baretta
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