Adrian, I have observed an intermittent problem on Windows in which osgviewer starts up using a high CPU %, but then cycling through the threading modes with 'm' makes the problem go away - even when you return to the mode in which you started. I never did figure out why.
Just a data point... Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : +1.703.652.4791 On Sun, Feb 1, 2009 at 7:45 AM, Adrian Egli OpenSceneGraph (3D) <[email protected]> wrote: > Hi Cory, > > I am working with Windows Vista dual core system. I get 50% CPU usage when i > am running osgviewer cow.osg if i start > osgviewer cow.osg --SingleThreaded i have no longer 50% CPU usage , now i > have about 0.5-3% CPU usage !!!!! > > i am very busy at the moment, but may tomorrow i will debug the OSG core, > may there is a bug inside or a thread running at max. > or robert has some idea,where i can start with debugging. may it's a windows > vista bug > > adrian > > > 2009/2/1 Robert Osfield <[email protected]> >> >> Hi Cory, >> >> I'll have to defer to others on the situation under Windows when doing >> remote desktop. My guess is that it's likely to be a driver issue. >> >> Robert. >> >> On Sat, Jan 31, 2009 at 3:27 PM, Cory Riddell <[email protected]> wrote: >> > I'm not sure about vysync. I'll look that up and check it. >> > >> > I thought about the possibility of it being a debug build and I don't >> > think >> > that's it. In my bin directory I have osgviewer.exe at 25,600 bytes and >> > osgviewerd.exe at 81,920 bytes. Both executables give me the same CPU >> > pegging behavior (as observed by SysInternals Process Explorer). >> > >> > My command line is "osgviewer.exe --window 100 100 200 200 cessna.osg". >> > My >> > video card is an ATI FireGL V7700 and the drivers are up to date. >> > >> > Ah- I just noticed something-- an error message: >> > Windows Error #127: [Screen #0] ChooseMatchingPixelFormat() - >> > wglChoosePixelFormatARB extension not found, trying GDI. Reason: The >> > specified procedure could not be found. >> > >> > I'm running over remote desktop right now, so perhaps that's related. I >> > don't recall seeing this error message before. >> > >> > Cory >> > >> > On Sat, Jan 31, 2009 at 3:54 AM, Robert Osfield >> > <[email protected]> >> > wrote: >> >> >> >> Hi Cory, >> >> >> >> It's not normal to have this high level of CPU usage for this model, >> >> the expceptions to this would be: >> >> >> >> You have vysync switched off, so the app is racing as fast it can >> >> to dispatch frames >> >> You've compiled the OSG with debug build. >> >> >> >> Robert. >> >> >> >> On Fri, Jan 30, 2009 at 8:36 PM, Cory Riddell <[email protected]> >> >> wrote: >> >> > When I run the osg viewer app and load just about any osg file (like >> >> > cesna.osg), my CPU usage is a constant 23% - 30%. This is with no >> >> > interaction, it is basically using an entire CPU core. Fortunatelly I >> >> > have a >> >> > 4 core machine, so it hasn't been a problem so far, but I'm wondering >> >> > what >> >> > this means for single core machines (which most of our customers >> >> > have). >> >> > >> >> > Is this typical? >> >> > >> >> > Cory >> >> > >> >> > _______________________________________________ >> >> > osg-users mailing list >> >> > [email protected] >> >> > >> >> > >> >> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> >> > >> >> > >> >> _______________________________________________ >> >> osg-users mailing list >> >> [email protected] >> >> >> >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> > >> > >> > _______________________________________________ >> > osg-users mailing list >> > [email protected] >> > >> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> > >> > >> _______________________________________________ >> osg-users mailing list >> [email protected] >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > -- > ******************************************** > Adrian Egli > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
