Thanks Adam (def applet (new PApplet)) -> (def ^PApplet (new PApplet)) results in amazing speed!
And, quil certainly uses these type hints, sorry. In this trouble, I learned the principle of using type hints for much java method call. Ideally I wish clojure compiler may automatically add type when using (new ...). 2014年3月29日土曜日 23時28分29秒 UTC+9 Adam Clements: > > Have you got type hints? If you do a java method call on something which > isn't type hinted then clojure has to use reflection to look up a list of > the available methods, which is sloooow. If however you tell it what type > you expect it to be, it can better optimise it. So in the above code you > would have something more like (defn draw [^Applet applet] (.line applet > ....)) > > Look up how to turn on reflection warnings in your project and that will > highlight all the lines which need attention. > > Hopefully it's as simple as that, but I would have expected quil to have > type hints already, so possibly not... > > Adam > > > Adam > > > On Sat, Mar 29, 2014 at 6:20 AM, tamichan <hogehoge...@gmail.com<javascript:> > > wrote: > >> Hi All >> >> I'm writing graphic clojure code with Processing jars. >> When I wrote heavy draw code, I found clojure code is slower than an >> equivalent of java. >> >> Probably, the cause is java method call. >> I call processing drawing method thousands times per one frame. >> (.line applet x1 y1 z1 x2 y2 z2) >> >> So decrease the call count, increase draw performance. >> Do you know anything speed up way of java method call? >> >> I tied quil, but it was same performance. >> clojure version is 1.5.1 >> >> thanks >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clo...@googlegroups.com<javascript:> >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+u...@googlegroups.com <javascript:> >> 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+u...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- 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.
