I recently integrated Clojure with two async messaging systems.
I wound up doing "send" operations through a Clojure agent.
I was curious how many agents I could spawn per second and found I
could spawn about 20K agents / second.
Code for testing:
(def t (agent true))
(defn tt [_ num]
(try
(let [x (inc num)])
(catch Throwable t (println "error"))))
(defn agent-speed-test []
(time (loop [b 1]
(send-off t tt b)
(if (> b 20000)
b
(recur (inc b))))))
After a few iterations in the repl (started with -server) my best time
was:
"Elapsed time: 1021.700789 msecs" - which is pretty much exactly 20k/
s.
CPU: 2.4GHz Core2 Duo.
Java 1.6.0_14-ea-b03
Clojure from git/master around Sept/2009.
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