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 <hogehogegeheg...@gmail.com>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
>
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