For storing timing results of expressions, I make use of an agent to store them in, and a modified time macro.
(def timings (agent [])) (defmacro send-timing "Evaluates expr and prints the time it took. Returns the value of expr." {:added "1.0"} [agnt expr] `(let [start# (System/currentTimeMillis) ret# ~expr end# (System/currentTimeMillis)] (send ~agnt conj {:expression '~expr :start start# :end end# :duration (- end# start#)}) ret#)) (send-timing timings (Thread/sleep 3000)) @timings => [{:expression (Thread/sleep 3000), :duration 3000, :start 1397313034715, :end 1397313037715}] On Saturday, April 12, 2014 2:13:44 PM UTC+2, Cecil Westerhof 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.