Re: MCO Performace

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Remi Arnaud (remi++at++remi.asd.sgi.com)
Mon, 7 Oct 1996 12:53:18 -0700

On Oct 7, 9:32am, Eric Heft wrote:
> Subject: MCO Performace
> Hi,
>
> Anyone have an tips on how to optimize multipipe.c for use
> with a 3 monitor , 1 hw graphics pipe, split using a MCO?
> My sim can do 60hz when its just opening one pipe/monitor.
> When I go to 2 pipes , performance drops to 20-30hz. Even
> when I drop the number of object from 400 to 1!

 You should not use multiple pfPipes on a machine with only one pipe.
 Performer provides multipipes on a single pipe machine for debugging
 purposes only, so you do not need a multipipe machine to develop a program
which target is a multipipe.

 If you want speed, using one pipe and MCO, you have to use a single pfPipe,
with multiple Channels.

 Look at pfChannel and pfPipeVideoChannel man pages.

 -- Remi

PS: The answer Sharon just made is the usual problem seen when running a
multiple pipe application on a multiple pipe machine, but I guess this is not
your case.

-- 




 o o  Remi ARNAUD - Silicon Graphics, Performer, Advanced Systems Dev      o o 
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