Wierd, on my Dual PII 300 I'm getting around 8MB/sec to an 800MHz
athlon. The athlon is using a 3com 905b I believe, and the PII is using an
intel fxp type card. Granted this is from my living room to my bedroom so
that may be part of what I see. Also, the Dual PII is running -STABLE as
of a week ago, and the Athlon is running -CURRENT as of about a week ago.

Ken

On Fri, 30 Nov 2001, James C. Durham wrote:

> (snip...a large number of postings regarding slow performance by 4.x
> kernels with TCP/IP)
> 
> A friend who works for a local university and I tried moving large
> files using variouis OS'es and hardware. These are FTP transfers
> with file sizes from 100 to 300 megabytes..
> 
> The conclusion we arrived at was that the TCP performance of FreeBSD
> 4.x and Linux is aproximately the same and that processor speed
> makes the most difference. In one case, a fast laptop with 16 bit
> pcmcia NIC did poorly. 
> 
> Moving large files on 100mb/s ethernet backbones gave the folowing
> results...
> 
> Dual 800 mhz PIII processors with Linux 6.1:
>       10mB/s. 
> 
> Sunblade 100's:
>        10mB/s.
> 
> Single 1.4ghz processors (noname box)with 3C905 NICS,
>   FreeBSD-stable (June 2001).:
>        9.5 mB/s.
> 
> In the case wehere we had only one machine of a type, we
> used the dual 800mhz machines as a "sink"...with the following
> results (this is probably questionable):
> 
> Dual 333 Linux 5.1 5mB/s
> 
> Pentium 350 III with 3C905 NIC, Linux 5.1:
>        2mB/sec
> 
> K6-2 400 with smc NIC, Linux 5.1:
>       2.8mB/sec
> 
> Dell 500mhz PowerEdge with 4.3 with 3C905 NIC to HP Netserver PII 266,
>   both running 4.3-RELEASE:
>       3.0 mB/sec.
> 
> Dell 500mhz PowerEdge with 4.3 to Dell 850mhz laptop running
>   4.4 with Dlink PCMCIA ethernet card:
>       1.0 mB/sec. (caused by pcmcia NIC?)
> 
> PIIMMX 200mhz box running 4.4-Relese with 3C905 to same Dell Laptop:
>       500kB/sec.
> 
> Unfortunately, we didn't have any 7.x Linux available or 3.X FreeBSD.
> 
> FWIW...
> 
> Jim Durham
> 
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