[Beowulf] ethernet performance testing

Douglas Eadline deadline at eadline.org
Fri Mar 17 09:17:24 PDT 2017

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.


> 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.).
> What’s 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 he’s 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?
> I’ll 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 at beowulf.org sponsored by Penguin Computing
> To change your subscription (digest mode or unsubscribe) visit
> http://www.beowulf.org/mailman/listinfo/beowulf


Mailscanner: Clean

More information about the Beowulf mailing list