I had my cpu monitor open while running osgviewer. I just noticed that
after closing the cpu monitor, my vsync'd framerate immediately jumped
to 60 (the monitor native rate).
So, it seems that Heisenberg has struck again. I can't measure the
thing with out radically changing it. Or perhaps I'm just not using the
right tools. Does anybody have any suggestions for decent Windows
performance analysis tools? I was using SysInternal's ProcessExplorer.
Cory
Cory Riddell wrote:
Hi Robert,
On Fri, Jun 5, 2009 at 8:21 PM, Cory Riddell<[email protected]> wrote:
Does anybody see less than 100% CPU utilization when running osgviewer
cow.osg on an ATI card? I had just been accepting that as normal.
100% CPU is not normal at all.
Yikes! I think there must be something seriously wrong with my system
then.
I updated my video drivers to the latest this morning and enabled
vsync. Enabling vsync sent my framerate from 1200 fps to 15 fps! Vsync
on or off made no difference on the cpu load- I always have 100%
utilization on one core.
I have a FireGL V7700 with 512 MB of RAM. I'm running the 8.603 drivers
on quad core XP Pro machine. My one-and-only monitor is a 24" Dell
panel at 1920x1200.
I turned vsync back off. With it on, my cow looked like it was being
rotated by a stepper motor.
If you or anybody else has troubleshooting suggestions, I would be very
happy to hear them.
Cory
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