FastCGI is a language independent, scalable, open extension to CGI that provides high performance without the limitations of server specific APIs. For more information, see http://www.fastcgi.com/. This is the fork of fcgi implementation for ruby but with ruby1.9 - ruby1.9.1 compability
Gemfile gem 'ruby-fcgi', '~> 0.8.9'
install gem install ruby-fcgi