From: ara.t.howard@...
Date: 2007-03-08T03:49:30+09:00
Subject: Re: make it faster

On Thu, 8 Mar 2007, Ryan Davis wrote:

>
> 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.

lol - i just presented it in class 1 hr ago!  but, as you correctly point out
- it's the concept which is valid, if not the implimentation.

ps.  presented hoe too.

cheers.

-a
-- 
be kind whenever possible... it is always possible.
- the dalai lama