From: John Johnson <johnatl@...>
Date: 2006-07-18T04:27:18+09:00
Subject: [Fwd: Re: How to speed up ruby and make it as fast as possible]

 > I have a server that is dedicated solely for running a single ruby

> application. Is there a ruby configuration file that I can change to
> help speed ruby up and take as much resources as it needs? Basically
> make sure there is no memory limit, processing limit, and give it the
> highest priority process as possible. Also is there anything else I
> can do to get the most speed out of ruby?

If you're using a UNIX like server, you might try running the process at a
higher priority using the 'nice' command, or have the ruby program change
it's priority before and after the critical section of code:

#!/usr/bin/env ruby

ruby_pid = $$
...
%x{ renice -20 #{ ruby_pid } }
# critical code
%x{ renice 0 #{ ruby_pid } }

Of course you'll have to run it as root to be able to change your priority
higher (more negative) than 0.

I would be interested to hear your results.

Regards,
  JJ