[Beowulf] ethernet performance testing
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
> 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?
> 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)395-2714 (cell)
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