
ketil@ii.uib.no (Ketil Z. Malde) writes:
Thanks for all your help, though!
One interesting(?) observation, using a custom data type of data STuple = STuple !Int Foo is slightly less efficient than using a normal tuple (Int,Foo) Seems to go against theory, in which STuple should use three words plus the Foo, while (,) should use three words plus the Foo, plus two for the Int. Perhaps the Ints are constructed anyway, since they are inserted from a function parameter? Sounds reasonable, I suppose; memory use seemed to be the same (from "top"), and there was only a speed difference. And one more thing, would parametrised types make a difference? E.g. my array is data MyArray label elts = MA label (Array Int elts) which means I have data Foo l a = Foo (MyArray l a) !Int and so on. As far as I can see, this shouldn't matter (a heap object is a heap object), but am I seeing far enough, I wonder? -kzm -- If I haven't seen further, it is by standing in the footprints of giants