From: Alain.Frisch@ens.fr
To: Jacques Carette <carette@mcmaster.ca>
Cc: "'caml-list'" <caml-list@inria.fr>
Subject: RE: [Caml-list] Functors
Date: Tue, 4 May 2004 00:51:23 +0200 (MET DST) [thread overview]
Message-ID: <Pine.SOL.4.44.0405040038500.14397-100000@clipper.ens.fr> (raw)
In-Reply-To: <005001c4313f$fcb30d70$1b447182@cas.mcmaster.ca>
On Mon, 3 May 2004, Jacques Carette wrote:
> > Do you have an explanation for this fact ? Given that ocamlopt can inline
> > function and propagate constants across compilation unit boundaries, what
> > kind of extra optimizations do you get with a single compilation unit ?
>
> It appears to be inlining of functions across compilation unit boundaries
> that makes the difference.
Well, precisely, ocamlopt can inline accross compilation unit boundaries,
so what's the benefit of having a single compilation unit ?
> Note that this is second-hand, if people really want to know details, it
> would take me a couple of days to get them from the right people.
FWIW, I just tried to put all the .ml/.mli of a medium-sized project (18
kloc) into a single file. Observations:
- ocamlopt crashes because of a stack overflow; ocamlopt.opt works fine.
- compilation is about 3 times slower.
- there is no noticeable difference on the runtime performance.
-- Alain
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next prev parent reply other threads:[~2004-05-03 22:51 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-02 9:12 Jon Harrop
2004-05-02 10:24 ` Martin Jambon
2004-05-02 13:34 ` Jon Harrop
2004-05-02 14:12 ` skaller
2004-05-02 16:49 ` Jon Harrop
2004-05-03 0:20 ` skaller
2004-05-03 14:43 ` Jacques Carette
2004-05-03 16:09 ` Alain.Frisch
2004-05-03 18:53 ` Jacques Carette
2004-05-03 19:17 ` [Caml-list] Mathematica Jon Harrop
2004-05-03 22:51 ` Alain.Frisch [this message]
2004-05-03 16:02 ` [Caml-list] Functors Julien Signoles
2004-05-03 18:41 ` Jon Harrop
2004-05-04 7:25 ` Jean-Christophe Filliatre
2004-05-05 8:15 ` Julien Signoles
2004-05-05 20:41 ` brogoff
2004-05-06 11:16 ` Jon Harrop
2004-05-06 20:23 ` Alain.Frisch
2004-05-06 18:26 ` Olivier Grisel
2004-05-06 12:26 ` Julien Signoles
2004-05-06 16:35 ` brogoff
2004-05-02 17:18 ` David Brown
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