If you go to ClusterMonkey.net and search for "netpipe" you will get a bunch of stuff on Ethernet testing and optimization -- the hardware may be a bit dated, but the methods are still sound.
There are few tests I beat to death, netpipe is one of them. -- Doug > This is a bit of a blast from the past question.. Back when Beowulfs were > the new hot thing, we all used Ethernet as the interconnect > There was a bunch of traffic on the list about measuring Ethernet > performance using various utilities, and all the ways to optimize the > performance (zero copy Ethernet drivers and the like, some interfaces just > being slow, etc.). > > Whats the current strategy and tools for looking at the Ethernet stack > and identify? I have a colleague who is working with a software radio > peripheral (USRP) that streams samples out, and hes getting better > performance with USB3 than with GigE - it may be that this is just the way > it works USB is dedicated master/client, while GigE is peer to peer. So > I suggested he do some back to back testing using a pair of PCs to know > what the limit is. > > And he turned it around and asked so what tools can I use? > > iperf? > netcat? > > Ill dig through the archives too.. > > > James Lux, P.E. > Task Manager, DHFR Space Testbed > Jet Propulsion Laboratory > 4800 Oak Grove Drive, MS 161-213 > Pasadena CA 91109 > +1(818)354-2075 > +1(818)395-2714 (cell) > > > -- > Mailscanner: Clean > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf > -- Doug -- Mailscanner: Clean _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
