RubyOnRails max perfomance


I use rubyonrails with apache2. I have configured apache with FastCGI.
When I test my project with fastcgi it's normal, that perfomance
(speed) is very hight. But when I change some ruby-libs (rb-files), I
must restart apache.
With CGI project works very slow. Exist any method for develop
rubyonrails project with fastcgi?

I don't think anyone does that. people normally use ruby script/server
(which runs webrick or mongrel) in development.