From: Hendrik Tews <H.Tews@cs.ru.nl>
To: Hendrik Tews <H.Tews@cs.ru.nl>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] caml_oldify_local_roots takes 50% of the total runtime
Date: Fri, 15 Dec 2006 11:56:08 +0100 [thread overview]
Message-ID: <wwuvekdxwaf.fsf@tandem.cs.ru.nl> (raw)
In-Reply-To: <17727.34685.561877.977822@tandem.cs.ru.nl> (Hendrik Tews's message of "Wed, 25 Oct 2006 17:49:17 +0200")
Hi,
issue 4145 (http://caml.inria.fr/mantis/view.php?id=4145) has
been closed in the meantime because
doligez - 2006-11-15 13:19
----------------------------------------------------------------------
Unfortunately, we cannot know which global C roots point to the minor heap,
since we don't have a write barrier on C variables.
I find this reason not satisfying at all. If a write barrier is
needed, then one could easily stipulate one by providing a
suitable macro CAML_modify_global_root.
With the above line of reasoning it should not be allowed to hold
any ocaml value in a C variable, because a write barrier is
needed for objects that are not in the young generation.
Hendrik
prev parent reply other threads:[~2006-12-15 10:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-25 15:49 Hendrik Tews
2006-10-25 18:21 ` [Caml-list] " Markus Mottl
2006-10-25 19:01 ` skaller
2006-10-26 9:50 ` Hendrik Tews
2006-10-26 13:48 ` Gerd Stolpmann
2006-10-27 11:36 ` Hendrik Tews
2006-10-27 13:17 ` Brian Hurt
2006-10-27 20:05 ` Robert Roessler
2006-10-27 21:16 ` Pierre Etchemaïté
2006-10-30 7:50 ` Hendrik Tews
2006-10-26 9:47 ` Hendrik Tews
2006-10-26 14:54 ` Markus Mottl
2006-12-15 10:56 ` Hendrik Tews [this message]
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