Here's a quick version of the framework optimization index. Higher is better (ratio of framework performance to raw platform performance, multiplied by 100 for scale):
Framework Framework Index
Gemini 87.88
Vert.x 76.29
Express 68.85
Sinatra-Ruby 67.88
WebGo 51.08
Compojure 45.69
Rails-Ruby 31.75
Wicket 29.33
Rails-Jruby 20.09
Play 18.02
Sinatra-Jruby 15.96
Tapestry 13.57
Spring 13.48
Grails 7.11
Cake 1.17
