Oops, sorry, I thought my post was stuck in the moderation queue and
have only just noticed the replies while browsing through the list
history! Thanks to everyone who replied.
Your version looks to be about six times faster than mine was. Thanks
ever so much!
In fact I wouldn't have noticed the d
On Mar 4, 7:23 am, Stuart Sierra wrote:
> On Mar 1, 5:33 pm, John Lawrence Aspden
> wrote:
>
> > Is the reason the Clojure version is slow that recursive calls to draw-
> > tree are boxing and unboxing primitive types?
>
> Recursive calls, like all Clojure function calls, force boxing. This
>
On Mar 1, 5:33 pm, John Lawrence Aspden
wrote:
> Is the reason the Clojure version is slow that recursive calls to draw-
> tree are boxing and unboxing primitive types?
Recursive calls, like all Clojure function calls, force boxing. This
may or may not have anything to do with the performance di
Hi John,
You can get some speedup by using unboxed math in draw-tree (see
below). What kind of speed difference are you seeing?
Stu
(import '(javax.swing JFrame JPanel )
'(java.awt Color Graphics Graphics2D))
(defn draw-tree [ #^Graphics g2d angle x y length branch-angle depth]
(w
How are you measuring the difference between these two programs? What
settings are you passing to the JVM when running the Clojure version?
David
On Mon, Mar 1, 2010 at 5:33 PM, John Lawrence Aspden wrote:
> Hi, the other day I was at a conference in London and learned Scala.
>
> As my first pr
Hi, the other day I was at a conference in London and learned Scala.
As my first program I translated a favourite fractal tree program
(which I stole from: http://marblemice.com/2009/04/26/clojure-fractal-tree/).
The programs are almost exactly the same in the two languages.
The Scala version see
