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RE: bandwidth concerns




	http://www.netperf.org/netperf/numbers/NetperfBrowse.html
> -----Original Message-----
> From:	Sarath Madakasira [SMTP:smadakas@purros.poly.edu]
> Sent:	Friday, March 24, 2000 12:21 PM
> To:	pci-sig@znyx.com
> Subject:	bandwidth concerns
> 
> Hi all!
> 	 I am designing a PCI based SONET(sts-3c) network interface card
> for Packet over SONET purposes. The available bandwidth for data in such a
> card would be roughly of the order of 140 Mbps one way. We plan to use
> this
> card to test large file transfers using up most of the bandwidth provided
> by the card, atleast in one direction. My questions are: 
> 	1. Can the PCI bus support this rate of data transfers for long
> 	  durations(order of 10's of milliseconds) ? 
> 	2. How would this kind of latency affect the performance of other
> 	  bandwidth hungry devices on the bus like the Graphics(monitor)? 
> 	3. Are there any timeout values or priority bits to be set to use
> 	  the PCI bus for such long transfers?
> 	4.Intel I960 is a I/O processor series which creates a secondary
>          PCI bus on which devices can be mounted. So if I choose to
> 	 use this processor, should I be putting all my existing devices on
> 	 the the secondary bus for optimal utilization of the existing
> 	 primary bus?
> 
> 
> 	Any help regarding these issues is immensely useful to me.PLease
> send me in any suggestions you can make about this stuff. Thanks a lot for
> your time. 
> 			bye,
> 					Sarath.
>