By the way, I think vmthread are no use for a program like Glsurf:

They are two threads and once the openGL thread has called Glut.mainLoop 
it will only call Caml code from callback from C ... and is seems that 
this prevent the premption of the thread and the computing thread will 
never have a chance to run, even if I call Thread.yield in the Idle 
callback function (at least this is what I observed)

Am I right ?

This limits a lot the use of vmthread : no native code compilation, 
requirement for all threads to run "toplevel" Caml code (no Caml code 
from C) often and may be other limitation that I don't know of. That's a 
lot :-(

And just a remark, like other people, I feel my machine is much faster 
(not for pure computation) under FreeBSD than Linux (mdk 9.0). Starting 
KDE or compiling ocaml (especially the ./configure script), seemed much 
faster. I should do some timing.

  --
Christophe Raffalli
Université de Savoie
Batiment Le Chablais, bureau 21
73376 Le Bourget-du-Lac Cedex

tél: (33) 4 79 75 81 03
fax: (33) 4 79 75 87 42
mail: Christophe.Raffalli@univ-savoie.fr
www: http://www.lama.univ-savoie.fr/~RAFFALLI
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