Re: PCI Burst and Overall System Speed (XEON)

[Davide Rossetti]

Brian McGrew wrote:

> I have a question about the PCI Bursting and overall processing speed on a dual Xeon box; but first I have to give a slight bit of background, (all of it relevant to the question) I'll try and keep it short.
>
>  
what do you mean by "PCI Bursting" ?? are you using DMA (PCI card Mem 
Write Multiple) or MMIO read (CPU Mem Read Line) ?

anyway on my system, 2 CPU Xeon 2.6GHz GC-LE + a custom PCI-X 100MHz 
card, I get
- 440.755 MByte/s, only 1 process
- 424.683 MByte/s, the process below running:
sh -c 'while true ; do echo miao ; done' > /dev/null

it's:
Linux xeino 2.4.22-1.2199.nptlsmp #1 SMP Wed Aug 4 11:48:29 EDT 2004 
i686 i686 i386 GNU/Linux

what is your kernel version?

regards

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