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32- and 64-bit performance
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Date: -- (:)
From: Jon Harrop <jon@f...>
Subject: Re: [Caml-list] Re: 32- and 64-bit performance
On Thursday 31 March 2005 16:05, Stefan Monnier wrote:
> > I just bought a new Athlon 64 laptop and installed 32- and 64-bit Debian.
> > Here are some timings, showing the performance change when moving from
> > 32- to 64-bit using ocamlopt (3.08.2) and g++ (3.4.4):
>
> 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 but I'm quite happy to take a performance hit in a few programs. 
Particularly because arrays are so much more useful now. :-)

-- 
Dr Jon D Harrop, Flying Frog Consultancy Ltd.
Objective CAML for Scientists
http://www.ffconsultancy.com/products/ocaml_for_scientists