On Mon, 14 Oct 2002 09:11:18 +0100 Derek Fountain wrote:

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What should I expect for a 100Mbs network running full duplex. What sort of speed should I be looking at for when transferring files through Samba or NFS?

I get about 2 Megabytes/second to my machines. Is this right? Or is it not?

This may not directly apply to your situation, but I had a similar problem using NFS to transfer files between a laptop and a desktop. It was slow, would sometimes hang for no reason, etc. It turned out the problem was an irq conflict in the laptop. The network card was sharing an irq with the printer or sound (can't remember which). I made sure the irqs were different, and it was "full speed again". It may be worth looking into. -- use Perl; #powerful programmable prestidigitation

Thanks for your responses so far... Okay then: http://tigersden.co.uk/data.html The "ftp server" used was pureftpd The 128M file was created with : dd if=/dev/urandom of=./128MB.img bs=1k count=131072 The SMB/NFS filesystems were unmounted then remounted before each test. What approximate speeds should I expect from a 100Mbs duplex network? The main problem I have is that I just simply do not know what the transfer rate *should* be? I tried some maths: 100Mbs duplex is 200Mbits/s signalling rate. 8 bits = 1 byte, so a signalling rate of 25MBytes/s assuming 50% of the information is ethernet "junk" [I have no idea about the actual proportions, but it seemed like that would be excessive enough to give a good enough ball park figure ;o)] then thats about a 12 MByte/sec transfer rate. 6 times faster than I have now. Am I missing something on the calculation, or am I right there? The network cables are no longer than 2 meters each between the computers and the switch. The network cards do not share their IRQs with any other devices [see html file above]. Switch shows Link/Act, 100M, FDX lights for both computers. Thanks!