[plug] gigabit lan
Brad Campbell
brad at wasp.net.au
Wed Jan 9 19:10:39 WST 2008
Kev wrote:
> So, I am now getting better than 100Mbit, but not quite what I
> expected. Are my expectations too high? Tomorrow I think I'll have
> some play time, so I'll get mii-tool also and have a play and see what I
> can find out.
Just some meaningless data points for you.
I added an additional GB switch into my network last night to get GB to my Mac Mini..
3 machines. One athlon server (2600XP), one athlon client (2800XP) and a dual core Mac Mini.
Between two athlon boxes with the skge driver I get about 350Mb/s. Between one of the athlons and
the Mac Mini with the Sky2 driver I get about 250Mb/s.
I think at one point I did see as much as 750Mb/s between the two athlons but that was a) a long
time ago and my memory is now hazy, b) on completely unloaded and idle boxes and c) using a
crossover cable. The server now is quite a busy machine and there are about 7 devices on the network.
I used iperf -s on the server and iperf -c on the clients. No other switches/tweaks.
Running a simultaneous test from both the Mac and the athlon client to the server seemed to give me
about 270Mb/s from the athlon and 180Mb/s from the Mac..
I'm using 2 cheap 5-port GB switches that store&forward.
I was getting about 95Mb/s from the Mac when it was on a 100BaseT port.
(all measurements in Mega BITS)
I was hoping for more, but given all the athlons are VIA chipsets with the NIC's sitting on the PCI
bus, and the hardware is now 4 years old I guess I can't complain that much. Disappointed with the
performance of the Mac Mini though.
Brad
--
"Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so." -- Douglas Adams
More information about the plug
mailing list