From: Xavier Leroy <xleroy@pauillac.inria.fr>
To: Fergus Henderson <fjh@cs.mu.OZ.AU>
Cc: caml-list@pauillac.inria.fr
Subject: Re: [Caml-list] why does hashtbl not use lists?
Date: Tue, 10 Jul 2001 16:44:00 +0200 [thread overview]
Message-ID: <20010710164400.A24756@pauillac.inria.fr> (raw)
In-Reply-To: <20010710194255.A15865@hg.cs.mu.oz.au>; from fjh@cs.mu.OZ.AU on Tue, Jul 10, 2001 at 07:42:55PM +1000
> I thought about mentioning the time saving from the reduced number of
> allocations, but then I wondered whether it would really save any time.
> If you have a compacting garbage collector, as I'm pretty sure Ocaml does,
> and a good compiler, then the compiler would be able to combine the two
> allocations into a single one. Does Ocamlopt do that?
Yes, it does. Still, you save two stores at allocation time with the
flat representation -- in addition to the more significant time
savings at access time (one fewer indirection).
- Xavier Leroy
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next prev parent reply other threads:[~2001-07-11 15:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-10 8:34 Chris Hecker
2001-07-10 9:00 ` Fergus Henderson
2001-07-10 9:05 ` Jean-Christophe Filliatre
2001-07-10 9:42 ` Fergus Henderson
2001-07-10 14:44 ` Xavier Leroy [this message]
2001-07-10 17:04 Charles Martin
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