From: Ryan Davis <ryand-ruby@...>
Date: 2007-03-08T03:40:55+09:00
Subject: Re: make it faster


On Mar 5, 2007, at 1:34 PM, Eric Hodel wrote:

> On Mar 4, 2007, at 21:28, Ara.T.Howard wrote:
>> you know those threads where someone posts a bit of slow ruby  
>> code, then
>> people rework it until it's orders of magnitude faster?
>>
>> what's the BEST one you can remember?
>
> I liked the one I posted with my writeup of making png.rb faster  
> with RubyInline since Dominik (sp?) gained similar speedups with  
> pure-ruby.  I think the pure-ruby speed-up ended up within an order  
> of magnitude of the selectively-optimized RubyInline version.   
> Instead of making the operations faster, Dominik changed the data  
> structures slightly for speed to reduce work.

I tried to apply dominik's changes and the problem was that they  
broke a lot of stuff. I don't see his numbers as being entirely  
valid, but his approach was.