Felipe Almeida Lessa <felipe.lessa <at> gmail.com> writes: > > On Mon, Apr 11, 2011 at 10:14 AM, Maciej Marcin Piechotka > <uzytkownik2 <at> gmail.com> wrote: > >> main = mapM (\x -> return $! c_sin_u) [1..n] > > 0.012 s > > This should be > > main = mapM (\x -> return $! c_sin_u x) [1..n] >
So if I must use a safe function returning IO a, there is no way to improve its performance? To give you a benchmark, calling gsl_ran_ugaussian a million times in pure C takes only a second or two on my system. _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
