I'm surprised we don't see more "use jRuby" replies. Most of these discussions come from businesses "already using Rails". jRuby has immediate, major improvemen

I'm surprised we don't see more "use jRuby" replies. Most of these discussions come from businesses "already using Rails". jRuby has immediate, major improvements to performance and many codebases "just work". In my case, I just had to mess with the Gemfile a bit.