[Haskell-cafe] Performance question

Lennart Augustsson lennart at augustsson.net
Thu Feb 26 07:01:22 EST 2009

C's rand() function is very bad and should never be used really.

On Thu, Feb 26, 2009 at 11:37 AM, Felipe Lessa <felipe.lessa at gmail.com> wrote:
> On Thu, Feb 26, 2009 at 7:56 AM, Eugene Kirpichov <ekirpichov at gmail.com> wrote:
>> Here is a variant that uses mersenne-random-pure64 and works less than
>> 2x slower than C++:
> And I would like to notice that rand() is incredibly dumber than the
> Mersenne twister, so probably if we took rand()'s code from glibc and
> rewrote it in Haskell, there would be another performance increase.
> --
> Felipe.
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