For those of you playing with JRuby, if you run across benchmarks of any 
kind that show JRuby running slower than Ruby 1.8.x, we'd appreciate you 
filing them as bugs:

http://jira.codehaus.org/browse/JRUBY

In general, performance in JRuby should be better for normal execution, 
so we'd like to find any remaining performance bottlenecks. Poor 
performance is a bug!

Thanks for your help!

- Charlie