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Memory usage/ garbage collection question
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Date: -- (:)
From: Olivier Andrieu <andrieu@i...>
Subject: Re: [Caml-list] Memory usage/ garbage collection question
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