[Opensim-dev] Auditorium for 500

John Sheridan john at pseudospace.net
Sat Dec 13 20:38:04 UTC 2008


Well, if most of the load is coming from physics then would it make a 
difference if basic physics were used instead of ODE?  Sure all of the 
prims will be phantom but it can be designed so that the terrain can 
support the avatars instead of prims.  Just a thought... :)

Thanks,
 - John Sheridan / Orion Shamroy / Orion Pseudo
Dahlia Trimble wrote:
> I did some testing a couple months ago and found that sitting avatars 
> present much less load than avatars that are standing, walking, or 
> flying. Also there are other things going on that can compete for CPU 
> resources, such as scripts and updates for excessive prims. If you 
> have few scripts running and fewer prims/unique textures to download 
> for each client who attaches to the region, and if avatars are seated 
> and requiring less processing from the physics engine, then it stands 
> to reason there will be more CPU resources available to process chat 
> and viewer updates from the stage performance. This behavior is 
> consistent with tests I've run.
>
> On the subject of neighboring regions, OpenSim does little processing 
> to test whether agents on neighboring sims should be receiving update 
> events and this may cause excessive update traffic if there are 
> several neighboring regions hosting avatars, even if they aren't 
> watching the events of interest. Keeping your high traffic regions 
> isolated to as small as possible of a cluster size may help reduce the 
> effects of this potential performance drain.
>
> On Sat, Dec 13, 2008 at 9:36 AM, Americo Damasceno 
> <adamascj at hotmail.com <mailto:adamascj at hotmail.com>> wrote:
>
>      
>      Thanks, Kyle. Your answer was very important to me. I am one of
>     the few guys in Brazil trying the use of OpenSim and have
>     received, some days ago, a consult from an important brazilian
>     university asking me about the possibility of the creation of a 3D
>     "virtual campus" having many resourses, included the auditorium
>     for 500. My answer was: "We need to wait a little more to know if
>     this is possible. My first impression is that it is not an easy
>     task to do it.".
>      I am not an OpenSim expert like you but your answers confirm
>      that didn't say anything very wrong.
>      
>      Americo Damasceno
>      
>      http://www.dmu.com
>      
>      
>
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