when I benchmarked rails on jruby on my machine I managed to get half the number of concurrent requests that I could get with mod_rails + apache, and the .war f

when I benchmarked rails on jruby on my machine I managed to get half the number of concurrent requests that I could get with mod_rails + apache, and the .war file took several minutes too boot sometimes, and sometimes it didn't boot at all. (java 1.5 + tomcat 6, and a rails app that we previously been running on mod_rails). I don't call that production ready. When MRI is slow, why go with something even slower? Is performance better with java 1.6 and glassfish? probably, but I haven't tried that yet so I don't know.