Hello, Here is a temptative of automated GC tweaking.
It mainly tries to guess a minor_heap_size that will both increase speed and
reactivity !!!
It has a description in it ! It also move to a proportional increment of
major_heap instead
of a constant one, but this is not very usefull in my tests.
To use it, adjust the parameter at the beginning of the file and just link with
it !
The main questions are
- more testing : I am interested on the behavior on your programs especially
* interactive ones !
* seems not to do oscillation very much ... do you have a program where
minor heap size oscillates
* does it reaches the maximum minor_heap_size for you (with not a too low
reactivity parameter)
- measuring the value of the "gamma" constant uses in the program on real OCaml
program:
let gamma = 3.0 (* time in major slice attached to a minor GC / time for minor
GC
: should use a real estimation, here just a guess !!! *)
Is this a universal constant that does not depend too much on the program and
architecture ?
Probably not, because of the grey_val for instance ...
Cheers,
Christophe
--
Christophe Raffalli
Universite de Savoie
Batiment Le Chablais, bureau 21
73376 Le Bourget-du-Lac Cedex
tel: (33) 4 79 75 81 03
fax: (33) 4 79 75 87 42
mail: christophe.raffa...@univ-savoie.fr
www: http://www.lama.univ-savoie.fr/~RAFFALLI
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