Where are the SL bottlenecks? (was Re: [sldev] branches/shadow-draft missing llrender.cpp)

talin sands talinsands at googlemail.com
Tue May 27 13:08:39 PDT 2008


go to the nvidia control panel and set Multi-display/mixed-GPU acceleration
to single display performance...that should fix it

2008/5/27 Carsten Juttner <carjay at gmx.net>:

> Scott Squires wrote:
>
>> I have an 8800GT, and have never seen > 35fps, and that is when starring
>> out at the ocean.  In a regular scene with no avatars, it is typically <
>>
>>
>
> One possible explanation that comes to mind is that maybe your refresh rate
> is locked to the monitor's vertical sync.
>
> If you set the monitor to run at 85 Hz you'd only ever receive as much as
> 42.5 Hz if the highest "unlocked" frame rate would be around 60 Hz.
>
> For NVidia cards you can decide if the application controls the vsync
> setting or you can override the default in the Nvidia control center (not
> sure where, currently don't have a Win-PC in front of me but it should be
> easy to locate).
>
> As for the application, the SL viewer has a debug setting called
> "DisableVerticalSync" which - as you probably guessed - has to be set to
> "TRUE".
>
> Carsten
>
>
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