8 Jul
2007
8 Jul
'07
8:17 a.m.
Neil Mitchell wrote:
Hi
I guess the question that's really burning in my mind is "if ByteString is so much faster than [x], why can't you just do the same optimisations to [x]?" In other words, "why should I need to alter my code to get all this fusion goodness?"
You already get some benefit of fusion with lists:
* http://research.microsoft.com/~simonpj/Papers/rules.htm
People are working on more:
* http://www-users.cs.york.ac.uk/~ndm/supero/ * http://www.cse.unsw.edu.au/~dons/papers/CLS07.html * many, many others
I always have trouble tracking exactly which version(s) of GHC actually implement all this stuff... ;-) Maybe I'll go find a Linux box sometime and try the head version, just for kicks...