Manlio Perillo ha scritto:
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moreover, you may set up"growing factor". with a g.f. of 1.5, for example, memory will be collected once heap will become 1.5x larger than real memory usage after last GC. this effectively guarantees that memory overhead will never be over this factor
Thanks. This seems to be effective (but it also reduce performances).
3) With -F1 option [...] I have to parse the whole data set, to check if memory usage is good.
Ok, done: real 49m7.369s user 45m21.642s sys 0m18.893s 814 MB used This is better memory usage, respect to: real 7m17.853s user 3m38.506s sys 0m7.612s 1586 MB used However, Kenneth Hoste reported (http://boegel.kejo.be/): 26 minutes, with 700 MB used. Maybe he was using the latest GHC version. I would also like to check how performances are with other functional languages. Regards Manlio Perillo