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

sherman wilcox wilcox.sherman at gmail.com
Mon Oct 15 16:37:22 PDT 2007


Ummm....this looks suspicious. Same hardware yet different times on
the Windows platform? What about checked iterators under 2005? Are you
disabling those?

Checked iterators:
http://msdn2.microsoft.com/en-us/library/aa985965(VS.80).aspx

With checked iterators, you'd need to disable them for the OSG libs as well.

Do you have access to a Intel compiler for Windows? I'd encourage you
to try that as well.

On 10/15/07, Adrian Egli <3dhelp at gmail.com> 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 ....
>
> ************************************************************
> 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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>
>



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