Manlio Perillo ha scritto:
[...]
I have executed the program, using the same RTS flags as yours:
real 6m13.523s
user 0m53.931s
sys 0m7.812s
815 MB usage
This is an huge improvement!
Now I have to check if using insert will further improve memory usage.
And ... surprise!
real 6m12.036s
user 0m51.303s
sys 0m8.433s
813 MB usage
As I suspected (you just have to read the IntMap code), there is
*no reason* why empty + insert should be better then singleton + union.
So the culprit is elsewhere.
It may be the use of uvector, or probably it is because you force strict
evaluation more often then me.
> [...]
Regards Manlio
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