[Haskell] Programming language shootout (completing the Haskell entry)

haskell at ser.fdns.net haskell at ser.fdns.net
Tue Mar 30 07:07:43 EST 2004

On Tuesday 30 March 2004 05:50, John Hughes wrote:
> execution time is due to data cache misses, and so a speed up of at most
> 2.5x is possible by improving the cache behaviour. That's certainly very

That's decent, if it could be achieved.

> The paper reports a 22% speed-up from prefetching to avoid write misses.
> If I remember rightly, we also got some decent speed-ups from
> optimisations aimed at improving the cache behaviour, although this
> wasn't using the GHC code generator, so the results aren't directly
> comparable.

So... was there a reason the GHC work of this research wasn't merged into the 
GHC distribution?  I understood the report to say that the GHC compiler was 
indeed modified to implement the simple prefetching.

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