From: Stefan Monnier <monnier@iro.umontreal.ca>
To: caml-list@inria.fr
Subject: Re: 32- and 64-bit performance
Date: Sat, 02 Apr 2005 15:23:21 -0500 [thread overview]
Message-ID: <87zmwh3p8m.fsf-monnier+gmane.comp.lang.caml.inria@gnu.org> (raw)
In-Reply-To: <200503311940.18701.jon@ffconsultancy.com>
>> Is there a GNU/Linux (and OCaml) mode supporting the half-way case where
>> you use the new amd64 registers but still stay with 32bit pointers?
>> That should fix the one case where the amd64 mode is slower because of the
>> extra memory use.
> I do not believe there is such a mode, no. I'm not entirely sure how this
> could work
Under Alpha they called it "taso". Mostly used for compatibility with apps
that were assuming the size of ptrs is the same as the size of int: it just
made the C library use only the bottom 4GB of the address space such that
the compiler could use only 32bit to store pointer values.
Stefan
next prev parent reply other threads:[~2005-04-02 20:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-30 2:40 Jon Harrop
2005-03-30 7:46 ` [Caml-list] " Alex Baretta
2005-03-30 8:00 ` Ville-Pertti Keinonen
2005-03-30 8:41 ` Alex Baretta
2005-03-30 9:01 ` Ville-Pertti Keinonen
2005-03-30 12:53 ` Jon Harrop
2005-03-30 14:34 ` Ville-Pertti Keinonen
2005-03-30 8:10 ` Robert Roessler
2005-03-30 8:11 ` Alexander S. Usov
2005-03-30 13:46 ` Eijiro Sumii
2005-03-31 13:42 ` Jon Harrop
2005-03-31 15:05 ` Stefan Monnier
2005-03-31 18:40 ` [Caml-list] " Jon Harrop
2005-03-31 22:41 ` Richard Jones
2005-04-02 20:23 ` Stefan Monnier [this message]
2005-04-02 20:50 ` David Brown
2005-04-03 10:01 ` Ville-Pertti Keinonen
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