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

[Justin Clark-Casey]

If you don't need to limit script cpu time then there's no fundamental reason not to set the delay factor to 0.

On 25/04/11 15:09, Neil Canham wrote:
> It is in OpenSim.ini -
>
>      ScriptDelayFactor = 0.0
>
> I wasn't aware of it until this thread - so thanks for making me aware - it has speeded up a number of scripts for me -
> of course, the delays are required in public sims where griefing might be an issue, but for private installations, can
> anyone see any reason not to set that to zero?  I guess there might be scripts that are 'accidentally' working by
> relying on the delays, but other than that, no fundamental opensim architectural reason?
>
> Neil
>
> On Mon, Apr 25, 2011 at 2:42 PM, Henry Wills <fubat.enterprises at gmail.com <mailto:fubat.enterprises at gmail.com>> wrote:
>
>     "... /configured all LSL scripting delays down to zero/ :)"
>
>     Where do I find that, Justin? I'm not sure I did that on my sim.
>
>
>     On Sun, Apr 24, 2011 at 8:36 PM, Justin Clark-Casey <jjustincc at googlemail.com <mailto:jjustincc at googlemail.com>> wrote:
>
>         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)
>         http://justincc.org/blog
>         http://twitter.com/justincc
>
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-- 
Justin Clark-Casey (justincc)
http://justincc.org/blog
http://twitter.com/justincc