[Beowulf] 10G networking?

Joe Landman landman at scalableinformatics.com
Fri Jan 23 09:04:41 PST 2015


On 01/23/2015 12:03 PM, Gavin W. Burris wrote:
>
>> min packet ping-pong latency is the standard metric, though packets/sec
>> rate might be interesting as well.
>
> # ping -q -s 1 -f hpcc001-i -c 1000000
>      1000000 packets transmitted, 1000000 received, 0% packet loss, time 47132ms
>      ipg/ewma 0.047/0.000 ms
>
> 1000000/47132 =  21.217 packets/ms
>
> Good? Bad? Meh?
>


Don't use ping for HPC latency/throughput tests.

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