Hi Ulrich,
Sorry about the lack of system specs.
I'm actually using an NVIDIA 7950 GT with the latest drivers.
Some other system specs:
AMD FX-62 Dual-Core
Vista 64-bit
If it matters any, I'm using the SVN build of OSG.
Thanks for the help.
Regards,
Kim.
> Date: Thu, 17 Sep 2009 09:45:13 +0200
> From: u.hertl...@sandbox.de
> To: osg-users@lists.openscenegraph.org
> Subject: Re: [osg-users] OSG CPU Utilization
>
> Hi Kim,
>
> On 17/09/09 7:08 AM, Kim Cheung wrote:
> > Hello all, I've been seeing a problem with high CPU utilization when
> > using OSG. In my tests, I run osgViewer, and it seems to use most of
> > core 1 on my dual-core machine, while core 0 is basically idle, in the
> > DrawThreadPerContext threading model.
> >
> > I do have vsync enabled.
> >
> > The thing I find most interesting is that this unusually-high CPU
> > utilization only occurs when I the window does not have focus when in
> > fullscreen mode.
> >
> > So far, any other window usage will trigger this high CPU utilization.
> >
> > There were some previous topics regarding this issue, and I do believe
> > it may be a busy-wait as Jean-Sebastian pointed out, however this CPU
> > usage does affect performance when other programs need the clocks.
>
> Is this with an ATI graphics card?
> Cheers,
> /ulrich
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