"Dorlet Emmanuel" <Emmanuel.Dorlet@cea.fr> writes:

> Does any one has a good and simple suggestion?

To monitor global memory usage, I use the following code :

# let stat = Gc.stat ()
  and control = Gc.get () in
  let max_words_total = stat.Gc.heap_words + control.Gc.minor_heap_size in
  Printf.printf "Maximum memory used (allocated): %d kBytes\n" 
          (max_words_total * Sys.word_size / 8 / 1024);;

  Maximum memory used (allocated): 624 kBytes
- : unit = ()

It gives you the total heap allocated.

Moreover, at the following URL, you'll find a program, "size", to
compute memory size of an OCaml value :

 http://www.lri.fr/~filliatr/software.en.html


If you have more precise ways to know memory behavior, I would be very
interested in them.

Best regards,
d.
-- 
 David.Mentre@irisa.fr -- http://www.irisa.fr/prive/dmentre/
 Opinions expressed here are only mine.