Thx for the answers, but my point is not to make it run faster. I know i could use memoization or use a loop with an accumulator variable.
Rather i want to find out why java is so much faster. Here my java implementation (the same naive algorithm like the clojure version): public static int fib(int n) { if (n < 2) { return n; } return fib(n - 1) + fib(n - 2); } I also did some measurements with: * golang fib(32) took ~15 ms * python fib(32) took ~ 800 ms Hence clojure performance is closer to python (which is slow in my opinion) than to a high optimized compiled language like Java. I didn't understand it, i always thought Clojure performs similar to Java... Daniel Gerlach -- 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/d/optout.