[Haskell-cafe] Haskell performance question

[Thomas Schilling]

On Fri, 2007-11-09 at 00:51 +0600, Mikhail Gusarov wrote:
> "Dan Piponi" <dpiponi at gmail.com> writes:
> 
> > Even though 'n' is 10 times bigger in the C program it runs much
> > faster than the Haskell program on my MacBook Pro with Haskell 6.6.1.
> > I've tried lots of different combinations of flags that I've found in
> > various postings to haskell-cafe but to no avail.
> 
> import Data.List
> 
> main = do
>   print $ foldl' (+) 0 $ take 100000000 [1.0,1.0..]
> 
> works 10 times faster than your C version. You just need to adapt to the
> radically different style of programming.
> 
> Real Fortran programmer may write Fortran programs on any programming
> language :)

Good point, but this is not true for the OP.  Take a look at Dan's blog.
It's linked on planet.haskell.org.

BTW. I prefer:

  print 10000000.0

;)