[osg-users] High CPU usage problems with multi-monitor(TwinView) using Nvidia card, osg2.8
donlvqing at msn.com
Wed Nov 25 05:46:21 PST 2009
Here is my setup:
-- Intel Core 2 6420 2.13GHZ
-- 3G RAM
-- Nvidia GeForce GTX 260 (drivers: 22.214.171.12442 2009-3-9)
-- winxp sp2,vs2005
In single monitor mode everything is working fine.When I run my application,CPU usage is a constant 10%~15%.
But when I use two monitors and set the Nvidia card to "TwinView" mode ,the CPU usage dramatically raise to
50%.It is basically using an entire CPU core since I use a 2 core machine.Then I find the same problem happens when
I run any OSG example or any OSG application in TwinView mode!It is OK when I use other multi-monitor mode such as
"horizontal pan ".
So I think maybe it is something wrong with the OSG2.8 and the "TwinView" mode of Nvidia card?
Any one can help me?
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