MacNean Tyrrell wrote: > I finally got around to putting together a file server from an old desktop > PC, was lucky enough the MOBO in there has SATA 1 connections, so i picked > up a 500gb sata for $80 and threw it in there and installed ubuntu server. > Now my wife uses ubuntu but i have to use xp for a specific program that > only runs on windows. Both laptops run on our wireless network. I want to > test the speed between the server and the 2 laptops, does anyone know a > program that works in linux as well as windows to test this? Or i guess if > one runs linux i can just test between the server and my wife's laptop. >
The speed of what? Network? Now, when I say network, I mean exclusive of any filesystem read/write costs. It is hard to avoid influence of the OS, though. <heh> I have used ttcp (or one of its relatives, such as nttcp, or iperf). There's an overview at http://sd.wareonearth.com/~phil/net/ttcp/ that may be useful. There are examples, too. iperf may be the easiest to use It looks like it may even be available for windows (although I haven't tried it) -- try a google search on iperf+windows Example: - - - pick one end to be the receiver (aka "server" in iperf) (let's suppose this end has IP address 102.168.1.101 you can determine that by running /sbin/ifconfig) tell the receiver to start ("listen", ie wait for a connection) iperf -s the other end is the transmitter (aka "client" in iperf) tell it to connect to the receiver and start sending iperf -c 192.168.1.101 wait until it finishes (repeat if desired, possibly with different command-line options) then go back to the server and stop the server-end with Ctrl-C - - - It may be interesting to test in the reverse direction, and vary some of the parameters. You can get help via iperf --help or man iperf For comparison, I get speeds nicely approaching 100 Mbps (typ. ~93 Mbps) on a wired connection using nominal "100 Mbps" hardware. I get only 20 Mbps on a nominal 54 Mbps 802.11b wireless -- I haven't tried to determine if that's normal, or if I have an underperforming component. If you want to know the end-to-end speed of file transfer operations, then ask again, but perhaps the raw underlying network transfer will be interesting in itself. Regards, ..jim -- KPLUG-Newbie@kernel-panic.org http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-newbie
