From: Peter Hickman <peter@...>
Date: 2006-07-14T20:40:01+09:00
Subject: Re: How to speed up ruby and make it as fast as possible

Profile your code, see where the bottlenecks are and refine the 
algorithms. There are no real tricks, it all comes down to good coding 
that is aware of how the language is best used and how your application 
is structured to handle the commonest usage.

If this is a critical production thing then buy better hardware, it is 
invariably cheaper in the long term than trying to squeeze a few 
percentage points out of your code.

I also rewrite all my performance critical code in C, that is the whole 
application gets rewritten in C once I have used Ruby to prototype the code.