[Soekris] Net 4801 performance

[Jason Dixon]

On Sep 5, 2006, at 9:05 AM, farlies wrote:

> schule wrote:
>> When I up, or download a file (~60MB iso) per ftp, I get only
>> ~850 kb/sec throughput.
>> I tried OpenBSD as well, and I get about 870kb/sec.
>>
>> That seems a bit to little to me.
>>
>> On the monowall website they speak of about 50mb/sec(with FeeBSD  
>> 4.11),
>> so I expected a little more.
>>
>> How much throughput do you get with your net4801?
>
> I've been using "iperf" (http://sourceforge.net/projects/iperf)
> to test my 4801 on an unloaded 100BT LAN and have also been a
> bit surprised by lower throughput than expected.  The best I
> have been able to get out of OpenBSD 3.9 is ~21 MBit; this is
> with pf disabled, and window size 256k. Throughput between
> a pair of Linux/Dell desktops over the same wiring is ~93 Mbit.
>
> This test may be probing a different boundary that Schule's,
> but I would be interested if anyone has wrung more performance
> out of the 4801 interfaces (National DP83816)?

Run "vmstat 1" before starting the transfer.  I'm betting that you'll  
see your traps (and by extension, cpu load) jump through the roof as  
soon as you start the test.  From my experience, the sis interfaces  
suck.

--
Jason Dixon
DixonGroup Consulting
http://www.dixongroup.net