hi there,
I know that there will be a conference or workshop on RT Linux in a near
future ... Can somebody let me know where I should look to have
information ?
I remember reading something about New York or Paris ?
Thank you
Michel
-----------------------------------
Michel Doyon, M.Eng.
Senior STVF Control Engineer
Canadian Space Agency
6767 route de l'aeroport
St-Hubert (Quebec)
J3Y 8Y9 - CANADA
Tel.: (450) 926 4679 - Fax : (450) 926 4695
[EMAIL PROTECTED]
On Thu, 10 Feb 2000, Christophe Kumsta wrote:
> Kulwinder Atwal wrote:
> >
> > AGP is meant to allow a card to use system memory, instead of having to
> > add more memory to the card. AGP allows the card's processor (ie. video
> > processor) to bypass the CPU and directly access main memory. This
> > allows a CPU to do more important things with its time.
> >
>
> I don't think that's really right, cause the usage of memory directly
> from PCI is available too.
> It's called bus-master transfert ( from or to the PCI-card ), and this
> operation is done without main CPU.
>
> The first advantage of AGP bus is that this one can be considered as 'a
> second' PCI bus with only one peripheral ( this explain the full
> bandwith operation for one slot ) and the frequency of the bus which is
> 66MHz against 33MHz for the PCI.
>
> This point of view explain why there is only one AGP bus on the system.
> ( if you look at linux /proc/pci file info, you will see that the AGP
> card is considered as a PCI card on bus=1 while others cards are all on
> bus=0 )
>
> Chris.
>
> --
> Kumsta Christophe
> <[EMAIL PROTECTED]>
> Real-Time System developper
> RT-Linux/RTAI ( Use the Source Luck !)
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