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Stefan Peter wrote:
>
> In this case I still do not understand how can the PCI bus be so
> limitative?
>
> I have 32 bit/33 MHz PCI bus on the X330 IBM server. As a rough
> calculation, the speed of the PCI bus is 32000000 1/s * 32 bit = 976
> Mbit/s.
The problem is that PCI is a bus designed for bursts. It had a lot
of overhead. If you want sustained throughput (like for video) you need
another bus (eg AGP). The maximum ethernet throughput on a 33MHz PCI bus
is about 400Mbps. You can't get 1Gbps.
Your problem is at a much lower saturation, 8Mbps. I really don't know
what that's about.
Joe
--
Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
contractor to the National Environmental Supercomputer Center,
mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA
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