On Wednesday, February 12, 2014 2:47:07 PM UTC, Stuart Sierra wrote: > > On Wednesday, February 12, 2014 8:46:41 AM UTC-5, Vincent wrote: >> >> On a slightly different topic: why reduce and not apply? >> > > The implementation of `+` with more than 2 arguments uses `reduce` > internally. So they amount to the same thing. >
Ah ok, interesting. I do seem to have, in the past, come across a function that was significantly faster when used with apply rather than reduce, but I can't remember which one. > There isn't really a performance difference: > > user=> (dotimes [i 7] (time (reduce + (range 10000000)))) > "Elapsed time: 354.475 msecs" > "Elapsed time: 346.235 msecs" > "Elapsed time: 348.124 msecs" > "Elapsed time: 348.894 msecs" > "Elapsed time: 379.9 msecs" > "Elapsed time: 356.337 msecs" > "Elapsed time: 362.788 msecs" > nil > user=> (dotimes [i 7] (time (apply + (range 10000000)))) > "Elapsed time: 360.067 msecs" > "Elapsed time: 353.281 msecs" > "Elapsed time: 345.694 msecs" > "Elapsed time: 355.162 msecs" > "Elapsed time: 346.511 msecs" > "Elapsed time: 350.61 msecs" > "Elapsed time: 353.674 msecs" > nil > Thanks, Vincent -- 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.
