If you look at the results in the link I posted, you'll see that Play ends up being 6 times the speed of Rails. I know about JRuby and have used it much, but that sort of speed improvement can't be ignored, especially considering how close Play comes to making Java beautiful...
Re:Rails Performance Needs an Overhaul
by jamesbritt on Tuesday June 08, 2010 @12:51PM
(#1414486)
Very interesting. Thanks.
Almost missed seeing the Snap and Play stats because the preformatted text was getting formated into a side-scrolling pane.
Not that I want to code in Java, but the speed is impressive.
Still, I have to wonder what the JRuby speed would be for some of the other Ruby frameworks that are faster than Rails, such as Ramaze and Sinatra. (I doubt they would beat those Play numbers, but they would still do better than Rails. A Duby version of Ramaze might rock.)
And if they do, why not use the Ruby app of choice under JRuby? Pretty much all of the dozen+ Ruby Web frameworks can be bundled up as WAR files and dropped off for Glassfish (or tomcat or whatever) to handle.