Re: [Haskell] Re: [Haskell-cafe] ANNOUNCE: enumerator, an alternative iteratee package

On 19/08/2010 18:21, John Millikin wrote:

On Wed, Aug 18, 2010 at 23:33, Jason Dagit wrote:

...

The main reason I would use iteratees is for performance reasons. To help me, as a potential consumer of your library, could you please provide benchmarks for comparing the performance of enumerator with say, a) iteratee, b) lazy/strict bytestring, and c) Prelude functions? I'm interested in both max memory consumption and run-times. Using criterion and/or progression to get the run-times would be icing on an already delicious cake!

Oleg has some benchmarks of his implementation at< http://okmij.org/ftp/Haskell/Iteratee/Lazy-vs-correct.txt>, which clock iteratees at about twice as fast as lazy IO. He also compares them to a native "wc", but his comparison is flawed, because he's comparing a String iteratee vs byte-based wc.

Handle IO is also doing Unicode encoding/decoding, which iteratees bypass. Have you thought about how to incorporate encoding/decoding? Cheers, Simon