[Haskell-cafe] haskell version of fractal benchmark

[Bayley, Alistair]

> [mailto:haskell-cafe-bounces at haskell.org] On Behalf Of Andrew Coppin
> 
> Donald Bruce Stewart wrote:
> > Some things to remember using Doubles:
> >
> >     * {-# OPTIONS -fexcess-precision #-} 
> >     * -fvia-C
> >     * -fbang-patterns
> >     * -optc-O2 -optc-mfpmath=sse -optc-msse2
> >     * -optc-march=pentium4
> 
> 1. What do all those things do?
> 2. Is the effect actually that large?

Large? Depends what you mean by large, but adding a few flags to get
just a 10-20% speedup isn't to be ignored:

 
http://www.haskell.org/haskellwiki/Performance/GHC#Crank_up_the_gcc_flag
s
  http://www.haskell.org/haskellwiki/Performance/Floating_Point

Alistair
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