27 Nov
2009
27 Nov
'09
10:59 p.m.
Hi Daniel Wow that's fantastic. Could you explain those further optimisations a bit more please? Especially the whole "more lazyness" thing. Timings here: Your last ByteString code: 128s That with corrected index calculation: 172s Correct indices and distance orig new = f m n instead of memf m n: 99s That and an array for the substitution cost: 64s String IO, substitution cost array and a suitably lazy break-early distance function: 1.7s That and a lazier surcharge function: 1.5s The same with ByteString IO: 1.4s Yes, I'd say that qualifies as a significant speedup. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe