From: Joel VanderWerf <vjoel@...>
Date: 2002-12-14T18:12:21+09:00
Subject: Re: Ruby slow??

Josh Huber wrote:
> Chris Thomas <chris@m-audio.com> writes:
> 
> 
>>It's interesting that the fastest implementations listed on that
>>shootout page are also non-native.
> 
> 
> Well, yeah, but they (at least the fastest one) use coroutines, which
> are very lightweight, and require (essentially) no scheduling
> overhead.  Basically, they explicitly pass control between eachother
> at certain points.
> 
> You could implement coroutines in ruby with callcc and get much better
> performance for this benchmark, I suspect.
> 
> A little searching turns up this coroutine module.  I haven't tried
> it, but it looks pretty straightforward:
> 
> http://liber.sourceforge.net/coroutines.rb
> 

But callcc is implemented in terms of threads...