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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