From: skaller <skaller@maxtal.com.au>
To: Damien Doligez <Damien.Doligez@inria.fr>
Cc: caml-list@inria.fr
Subject: Re: speed versus C
Date: Wed, 13 Oct 1999 06:42:26 +1000 [thread overview]
Message-ID: <38039D32.9B6A60BE@maxtal.com.au> (raw)
In-Reply-To: <199910121321.PAA18541@tobago.inria.fr>
Damien Doligez wrote:
> As far as I can tell, you've been asking for three things:
>
> 1. Efficient finalization, with finalization functions written in O'Caml.
> 2. Correct finalization of circular references.
> 3. Immediate finalization: as soon as a value becomes unreachable, the
> finalization function is called.
> I don't know how to get all three together. It is likely that we'll
> have 1 and 2 in a future release of O'Caml.
1 and 2 is good news! Now, Python does (3) by reference counting.
So it is always possible to do reference counting to get immediate
finalisation, there is an overhead in both time and space when
the garbage collector is used as well, and of course it doesn't
finalise unreachable circular references immediately.
But it is a good compromise, I believe Perl does something like this
(reference count, and clean up with a GC at the end).
--
John Skaller, mailto:skaller@maxtal.com.au
1/10 Toxteth Rd Glebe NSW 2037 Australia
homepage: http://www.maxtal.com.au/~skaller
downloads: http://www.triode.net.au/~skaller
next prev parent reply other threads:[~1999-10-13 7:11 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-10-12 13:21 Damien Doligez
1999-10-12 20:42 ` skaller [this message]
[not found] <Pine.LNX.4.03.9910081713230.31666-100001@post.tepkom.ru>
1999-10-10 4:51 ` skaller
1999-10-11 9:08 ` Anton Moscal
-- strict thread matches above, loose matches on Subject: below --
1999-10-08 6:57 Pascal Brisset
1999-10-07 13:00 STARYNKEVITCH Basile
1999-10-03 21:35 Jan Brosius
1999-10-04 21:59 ` skaller
1999-10-05 23:22 ` chet
1999-10-06 10:22 ` skaller
1999-10-05 20:20 ` Gerd Stolpmann
1999-10-06 15:21 ` William Chesters
1999-10-06 22:49 ` Gerd Stolpmann
1999-10-07 10:26 ` Michel Quercia
1999-10-07 10:46 ` William Chesters
1999-10-07 15:48 ` Pierre Weis
1999-10-07 19:21 ` Gerd Stolpmann
1999-10-08 0:26 ` William Chesters
1999-10-10 16:27 ` Gerd Stolpmann
1999-10-10 20:48 ` William Chesters
1999-10-10 23:54 ` Alain Frisch
1999-10-11 17:58 ` William Chesters
1999-10-11 19:32 ` John Prevost
1999-10-11 20:50 ` Gerd Stolpmann
1999-10-12 20:07 ` skaller
1999-10-08 9:56 ` Pierre Weis
1999-10-07 15:25 ` Markus Mottl
1999-10-07 6:56 ` skaller
1999-10-07 12:37 ` Xavier Urbain
1999-10-07 22:18 ` Gerd Stolpmann
1999-10-08 19:15 ` skaller
1999-10-08 13:40 ` Anton Moscal
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