On Tue, Mar 17, 2009 at 12:17:39AM +0100, Laurent GUERBY wrote: > > > we have also ordered a few SheevaPlugs but our retailer said that it > > > will take at least two more weeks to deliver. We are very interested > > > in data throughput, could you please post some very basic ethernet > > > performace numbers? > > > > My main concern so far has been to get a working kernel image into the > > archive as soon as possible, so I haven't had a chance to look at > > performance yet. > > > > What kind of test would you like to see? > > Basic test from the plug "gcc55" to my PC "pc2": > > gcc55 ~ # iperf -c pc2 -N -n 1000M > ------------------------------------------------------------ > Client connecting to pc2, TCP port 5001 > TCP window size: 16.0 KByte (default) > ------------------------------------------------------------ > [ 3] local 192.168.1.118 port 45282 connected with 192.168.1.101 port 5001 > [ 3] 0.0-51.5 sec 1000 MBytes 163 Mbits/sec > > My PC has: > 02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. > RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 02) > > Note: the plug was running two compilations by farm users during the > network test and the kernel has lock checking enabled so it's > unlikely an upper bound :).
On the 6281 at 1.2 GHz, I get wire speed TCP transmit when GSO is enabled, and wire speed TCP receive when LRO is enabled (which mv643xx_eth supports since recently -- it's currently in net-next). Note that the onboard (PCI) gige network card in my desktop machine was the bottleneck in most of the tests I tried initially -- I couldn't saturate the KW board until I put a relatively beefy PCIe NIC in my desktop. (The desktop machine itself is a Core 2 Quad, so that isn't the issue, it's purely the onboard PCI NIC being crap.) -- To UNSUBSCRIBE, email to debian-arm-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org