[Opensim-users] Scripting: 10x speed boost with C#

[Justin Clark-Casey]

Very interesting, Jeff.  The scripting engine in OpenSim transforms LSL to C# before compiling it so there wouldn't be a 
time difference due to interpretation.

Of course, I'm presuming that you had configured all LSL scripting delays down to zero :)

On 23/04/11 11:20, Jeff Kelley wrote:
> I like physics. And I like colors.
>
> I scripted a blackbody spectrum in LSL for a science sim. It was reasonably
> fast, 1.8s for a 400 points spectrum (380 to 780 nm) including Planck's law
> computation, CIE to RGB colorspace mapping with gamma correction, display
> with osDynamicTexture.
>
> That was fast, but not enough in my mind. Real-time interaction should be
> in the 1/10s range, not the second.
>
> So I rewrote the thing in C#. The key was to get rid of all llFunctions,
> LSL lists and string handling functions, math functions, even building
> manually the drawlist instead of calling osDraw routines. Execution time is
> now in the 0.1-0.2s range.
>
> Running Opensim 0.7.0.2 + MONO on a MacMini server, 2.53GHz Core Duo, 4GB.
>
> LSL code:	http://pastebin.com/MxsivsKS
> C# code:	http://pastebin.com/UR2gsnU7
>
> Nice!
>
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Justin Clark-Casey (justincc)
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