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
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