From: Olivier Andrieu <andrieu@ijm.jussieu.fr>
To: Richard Jones <rich@annexia.org>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Memory usage/ garbage collection question
Date: Fri, 14 Oct 2005 12:08:55 +0200 [thread overview]
Message-ID: <17231.33719.811325.429104@karryall.dnsalias.org> (raw)
In-Reply-To: <20051014094948.GA11039@furbychan.cocan.org>
Hi,
Richard Jones [Friday 14 October 2005] :
> I'm trying to optimise a program which is using a large amount of
> memory and consequently thrashing.
>
> The core of the program is an iteration over a list of something like
> a million elements which consumes about 1/2 gig of RAM. The iteration
> is:
>
> List.iter (
> fun row ->
> (* put row into database and forget about it *)
> ) rows;
> (* no further references to rows after this *)
>
> This is the stdlib implementation of List.iter. Should the garbage
> collector be able to collect the part of the list which has been
> iterated over, during the iteration? At the moment it doesn't look
> like it's doing so.
« Short answer: with ocamlc, no. With ocamlopt, yes. »
cf. these informatives messages by Xavier:
http://groups.google.com/group/fa.caml/msg/f194a3240d240e71
http://groups.google.com/group/fa.caml/msg/d36cb040d0d87ca6
--
Olivier
next prev parent reply other threads:[~2005-10-14 10:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-14 9:49 Richard Jones
2005-10-14 10:02 ` [Caml-list] " skaller
2005-10-14 10:08 ` Olivier Andrieu [this message]
[not found] ` <c7ee61120510140258q5b7f393l8e3c2c3d45f49008@mail.gmail.com>
2005-10-14 10:27 ` Richard Jones
2005-10-14 10:51 ` Frederic van der Plancke
-- strict thread matches above, loose matches on Subject: below --
2005-10-14 9:36 yoann padioleau
2005-10-14 10:10 ` Richard Jones
2005-10-14 10:07 ` Gerd Stolpmann
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