Re: [Haskell-cafe] "Out of memory" if compiled with -O2, why?

Hello Jason, Wednesday, December 1, 2010, 8:54:58 PM, you wrote:

I'm using ghc7 here.  If I run your program with -O2, it takes 1943 MB of memory max. If I comment out everything except g then with -O2 it takes 1521 MB.

I'm not sure where the extra 400 MB of memory are going.

i think, it's because memory isn't collected immediately, so in first case you just have more garbage hanging around. if you need to measure real workset of your program, you should apply very aggressive (and slow) garbage collection settings -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com