Bagley shootout. Was: Lightningspeed haskell

[John Atwood]

I notice that the reverse file program, while concise, is quite slow.
  The program in its entirety is:
     main = interact $ unlines . reverse . lines

Any thoughts on why its time is 5.68 seconds, vs 3.56 for tcl, 2 for 
perl, 0.19 for gcc, 0.18 for ocaml; and how it might be sped up? Is the 
lack of speed all in the stdio I/O?

Is there a way to tell which benchmarks have no haskell entry?

John Atwood
--

Josef Svenningsson wrote:
> 
> Hi all.
> 
> Some days ago someone posted this url:
> http://www.bagley.org/~doug/shootout/
> 
> which is a page benchmarking a number of different languages and
> compilers where ghc is one of them. Some benchmarks lacked a haskell
> versions (and some still do) and so I decided to fill in some of the gaps.
> 
> One benchmark turned out to give pretty remarkable results. It's the
> producer/consumer benchmark. I suggest you all take a look at it. The
> haskell version is six (SIX!!!) times faster than the c version. Hey,
> what's going on here? I would really like to hear some comments from our
> dear implementors.
> 
> It should be noted that synchronisation is achieved by using
> slightly different kinds of primitives. But still... six times...
> 
> I lift my hat of for the ghc-implementors.
> 
> 	/Josef
> 
> 
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