I think that as a general rule it is not advisable to do performance tests in Debug mode, you should always use Release mode for that. Also, are you using the default optimization flags given by cmake for both compilers? These should be ok.
Erik _____ From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Leeten Sent: Friday, December 19, 2008 10:04 To: osg-users Subject: [osg-users] OSG2.6 libs created by VC2008 are lower than the onescreated by VC2003? Hi, all I use OSG2.6.0 on Windows XP SP3. I generated both OSG2.6 libs under VC 2008 and VC 2003, both under Debug mode. When I test my app's FPS, I found an interesting thing: when I load the same file in the same app, the FPS is different when using different libs. The details are shown in followed table. Geode Num in Input Model OSG vertion IDE Mode FPS 2300 2.6 VC2008 Debug 2 2300 2.6 VC2003 Debug 75 2300 2.2 VC2003 Debug 75 To be attantion, the refresh frequence of my screen is set to 75Hz. When I used VC2008 debug libs, the apps is too slow to stand. I wonder why it happens? did I generate the libs in a wrong way? Thank you for any help. 2008-12-19 _____ Leeten
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