On Mon, Feb 07, 2005 at 09:04:39PM +0100, sejourne_kevin wrote:
> Martin Jambon a écrit :
> >On Mon, 7 Feb 2005, Christophe TROESTLER wrote:
> >
> >
> >>Hi,
> >>
> >>For fun I have implemented an nbody simulation following
> >>http://shootout.alioth.debian.org/benchmark.php?test=nbody&lang=all&sort=cpu
> >>(code is attached).  I've compiled it with
> >>
> >> ocamlopt -o nbody.com -inline 3 -unsafe -ccopt -O2 nbody.ml
> >
> >
> >-inline 100 gives better results for me (around -25%)
> >This should be enough to beat Java :-p if you get the same improvement on
> >your side.
> Same for me, but "-ccopt -O2" don't change anything.


If using gcc, you have to use -O3 to enable inlining.

If using only -O2, inlining is not enabled automatically by the gcc.


Ciao,
   Oliver