It wasn't very complicated, I just started from zero experience worrying about this stuff.
- switch map to loop+recur - add primitive type hints to args and return values - make sure you get the types right (e.g. make sure your longs are longs, not ints) Cheers, Jay On Mar 28, 2012, at 10:17 PM, endbegin wrote: > On Tuesday, March 27, 2012 2:51:41 PM UTC-4, Jay Fields wrote: > I recently ran into some code** that was in Java, and ran in single > digit microseconds (not millis). I converted it to clojure, and got it > running at about the same speed... though it did take me a day to > figure out all the tweaks. > It can be done, if you're willing to invest the time and learn the tricks. > > Cheers, Jay > > > > That is good to know. Is there a place where the tricks involved were > documented? As in, "here" is what you should think about to get Java-like > performance. I've seen fragments in different places, and a lot of them > applied to Clojure 1.2 or earlier. Based on what I have seen on Stack > Overflow, it seems like if you want Java performance, then you have dig down > into direct Java interop, and use things like Java arrays. > > -- > 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 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
