[osg-users] Performance Windows (Visual Studio) compared to MAC OS/X

Paul Melis paul at science.uva.nl
Mon Oct 15 00:37:41 PDT 2007


Adrian Egli wrote:

> Hi all,
>
> same code, allways default project settings, release, same CPU/RAM/... 
> windows native and os/x native dual boot....
>
> what you think about this !!!! results are equal, but computing time ....

With "results" I assume you mean the image output? As the number of tree 
nodes checked and triangles intersected is obviously not equal. Which 
should explain at least some of the differences. Are the Kd-trees equal 
among the different platforms?

Paul

>
> ************************************************************
> MAC OS/X XCode
> ************************************************************
> Ray Trace Time          =       2.97638s
>
> Rays                          =       787307          (264K Rays/s)
> Nodes Checks            =       24939199
> Bounding Checks        =       49512447
> Triangles Checks        =       16703960
>
>
> ************************************************************
> Visual Studio 2003
> ************************************************************
> Ray Trace Time          =       3.77131s
>
> Rays                    =       786152          (208K/s)
> Nodes Checks            =       24806690
> Bounding Checks         =       49252143
> Triangles Checks        =       16609007
>
> ************************************************************
> Visual Studio 2005
> ************************************************************
>
> Ray Trace Time          =       4.62109s
>
> Rays                    =       786152          (170K/s)
> Nodes Checks            =       24806705
> Bounding Checks         =       49252212
> Triangles Checks        =       16608961
> -- 
> ********************************************
> Adrian Egli
>
>------------------------------------------------------------------------
>
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