Hello Peter, Friday, February 20, 2009, 6:18:50 PM, you wrote: > So GHC is about 3 to 4 times slower as Visual C++ / GCC without > loop unrolling why stop on disabling loop unrolling? there are lot of options we can use if we want to make gcc slower :D -- Best regards, Bulat mailto:Bulat.Ziganshin at gmail.com