Hi Cecil, For precise timing benchmarks, use criterium [1]. For simple, gross timing, use
(map #(time (foo %)) numbers) or to convert your code to something more functional (and including defns for now and foo): (defn now [] (. System currentTimeMillis)) (def numbers '(4 6 8 10)) (defn foo [n] (reverse (map #(* % %) (range (Math/pow n 5))))) (count (foo 10)) (defn timed-foo [times n] (let [start (now)] (foo n) (conj times (- (now) start)))) (reduce timed-foo [] numbers) => [0 0 4 14] [1] https://github.com/hugoduncan/criterium Regards, Fergal On Sat, Apr 12, 2014 at 1:13 PM, Cecil Westerhof <cldwester...@gmail.com>wrote: > At the moment I have the following: > (def numbers '(4 6 8 10)) > > (doseq [number numbers] > (foo number)) > > The call foo generates some output, but I also want to save the time it > took for the call to complete. At the moment I am thinking about > something like: > (def numbers '(4 6 8 10)) > > (def ^:dynamic needed-times ()) > (doseq [number numbers] > (let [start (now)] > (foo number) > (def ^:dynamic needed-times > (cons (- (.getTimeInMillis (now)) > (.getTimeInMillis start)) > needed-times)))) > > But it looks a 'little' cumbersome. Is there a better way to do this? > > Also if I need to use several points in time, do I keep nesting 'let', > or is there a better way? > > -- > Cecil Westerhof > > -- > 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. > -- Fergal Byrne, Brenter IT Author, Real Machine Intelligence with Clortex and NuPIC https://leanpub.com/realsmartmachines <http://www.examsupport.ie>http://inbits.com - Better Living through Thoughtful Technology http://ie.linkedin.com/in/fergbyrne/ https://github.com/fergalbyrne e:fergalbyrnedub...@gmail.com t:+353 83 4214179 Formerly of Adnet edi...@adnet.ie http://www.adnet.ie -- 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.