At what point did you do a cvs update?  This morning I checked in some
improvements.  BTW, by default the viewer should run thread per
context, and fallback to single threaded on one screen systems, the
new thread per camera threading isn't on by default.

To switch on the thread per context you need to press 'm' in osgviewer
to get it switch to the new threading model.

I've made the update half an hour before I wrote that email. I again recompiled everything and now it seems to be working. To a degree...

First the stats:
Single Threaded: ~140Fps
Thread Per Context: ~140Fps
Thread Per Camera : ~260Fps

The problem is this 260Fps performance boost vanishes after a few seconds and I get again 140 frames. I can observe that in the beginning both of the cores are almost %100 busy and then one of the cores is not used anymore. From time to time second core is utilized again so what I see here is that performance makes jumps between 140 and 260fps (most of the time 140 though :) )

BTW, is there any chance I could get access to your big town model for
testing purposes :-)
I've talked to my employer about this. If you can sign an NDA we can provide you one of our town models. A really big one is not possible but I can provide you a moderately sized one in IVE format.

Tugkan

--
Tugkan Calapoglu

VIRES Simulationstechnologie GmbH
+49.(0)8031/463641
[EMAIL PROTECTED]
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