I create many small methods in java without worrying about the performance since it's usually the target of inline optimization. For example,
public class Foo { public static long inc(long l) { return ++l; } public static long f1() { long l = 0; for (int i=0; i < 1000000000; i++) { l++; } return l; } public static long f2() { long l = 0; for (int i=0; i < 1000000000; i++) { l = inc(l); } return l; } } (time (Foo/f1)) (time (Foo/f1)) (time (Foo/f1)) (time (Foo/f2)) (time (Foo/f2)) (time (Foo/f2)) "Elapsed time: 23.309532 msecs" "Elapsed time: 23.333039 msecs" "Elapsed time: 21.714753 msecs" "Elapsed time: 22.943366 msecs" "Elapsed time: 21.612783 msecs" "Elapsed time: 21.71376 msecs" But clojure funtions seem to be never get inlined. (def obj (Object.)) (defn getObj [] obj) (defn f1 [] obj) (defn f2 [] (getObj)) (time (dotimes [n 100000000] (f1))) (time (dotimes [n 100000000] (f1))) (time (dotimes [n 100000000] (f1))) (time (dotimes [n 100000000] (f2))) (time (dotimes [n 100000000] (f2))) (time (dotimes [n 100000000] (f2))) "Elapsed time: 67.758744 msecs" "Elapsed time: 68.555306 msecs" "Elapsed time: 68.725147 msecs" "Elapsed time: 104.810459 msecs" "Elapsed time: 103.273618 msecs" "Elapsed time: 103.374595 msecs" -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.