[osg-users] Framerate vs stats?

[Judd Tracy]

I can confirm that when we run on two monitors and the stats are up that 
the framerate slowly degrades in OSG 2.2 binaries from the website.  It 
went from 60fps to 8fps in about 2 minutes.  We are running WinXP with a 
GeForce 8600 GTS.

Judd

Wojciech Lewandowski wrote:
> Hi again,
>  
> Just out curiosity can anyone with two monitors check if this 
> happens with his setup ? I made this test on XP/GeForce 7800 GTX and 
> Vista/GeForce 8800. If I have two monitors active draw time degrades 
> if only one monitor draw time is stable.
>  
> Thanks in advance,
> Wojtek 
>  
>
>     ----- Original Message -----
>     *From:* Wojciech Lewandowski <mailto:lewandowski at ai.com.pl>
>     *To:* OpenSceneGraph Users
>     <mailto:osg-users at lists.openscenegraph.org>
>     *Sent:* Friday, February 15, 2008 2:42 PM
>     *Subject:* Re: [osg-users] Framerate vs stats?
>
>     Thanks Serge,
>      
>      I have to withdraw my claim. Your mail gave me something to think
>     and I checked whether problem exists in single monitor mode.
>      
>     I turned off my second monitor in Display properties... and  Tada!
>     - problem vanished. Framerate is stable.
>      
>     This is not the first time I observe unusual OSG/OpenGL behaviour
>     in multimonitor mode. I guess its the drivers again. Sometimes
>     changing NVidia multimonitor/mutihreading settings help but most
>     often it does not...;-(
>      
>     Thanks for helping to isolate this issue,
>      
>     Wojtek 
>      
>     ----- Original Message -----
>
>         *From:* Serge Lages <mailto:serge.lages at gmail.com>
>         *To:* OpenSceneGraph Users
>         <mailto:osg-users at lists.openscenegraph.org>
>         *Sent:* Friday, February 15, 2008 1:10 PM
>         *Subject:* Re: [osg-users] Framerate vs stats?
>
>         On Fri, Feb 15, 2008 at 12:57 PM, Wojciech Lewandowski
>         <lewandowski at ai.com.pl <mailto:lewandowski at ai.com.pl>> wrote:
>
>             Hi Robert,
>
>             We noticed another issue. When statistics bars are on -
>             framerate slowly
>             degrades. This happens with osgviewer dumptruck.osg for
>             example. When stats
>             are on draw time slowly grows and framerate starts to
>             decrease.
>
>             Tested with latest svn (2.3.4), windows xp & vista, OSG
>             built with VS 2008.
>
>             Regards,
>             Wojtek
>
>
>         Hi Wojtek,
>
>         I've just tested it (latest SVN, WinXP but VS2005, NVidia
>         8600GTS), and there is no decrease here, my framerate stay at
>         the same value (tested with vsync on and off). Have you
>         noticed this problem with VS 2005 too ?
>
>         -- 
>         Serge Lages
>         http://www.tharsis-software.com
>
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-- 
Judd Tracy
Institute for Simulation and Training
University of Central Florida
407-882-1405