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

[Simon Marlow]

On 19/08/2010 18:21, John Millikin wrote:
> On Wed, Aug 18, 2010 at 23:33, Jason Dagit<dagit at codersbase.com>  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