I failed to get JavaFX compiler running on my Ubuntu, but I easily ran Chris's JRuby 1.1.6 test; so for calibration, my laptop comes in at 3:52, vs 4:22 on Chris's machine. Presumably we can scale results on my machine by 1.13.
Here's my Clojure version of the test:
(defn tak [#^Integer x #^Integer y #^Integer z]
(if (>= y x)
(recur (tak (- x 1) y z)
(tak (- y 1) z x)
(tak (- z 1) x y))))
(dotimes [n 1000] (tak 24 16 8))
It runs in about 50 seconds, or 56 after normalizing to Chris' machine speed. This puts Clojure north of JRuby and Groovy, but still 5 times slower than JavaFX.
If you remove the type hints, it runs in 4 minutes, or about the same time as JRuby -- and about 4 or 5 times slower than with type hints.