perfSONAR User Q&A and Other Discussion

[Joseph Bernard <>]

I didn't know nuttcp did UDP because of the name.  I just tried it.  It
works great on the first try.

Thanks,
Joseph


On 2/15/12 4:57 PM, "Brian Tierney" 
<>
 wrote:

>
>On Feb 15, 2012, at 11:12 AM, Joseph Bernard wrote:
>
>> I replaced the Broadcom with an Intel Gigabit CT Desktop Adapter card
>>and
>> got the same results.  I then noticed that the version of iperf on
>>CentOS
>> 5.7 I've been using is 2.0.4 instead of 2.0.5.  I loaded up PS-PS and
>> replaced 2.0.5 with 2.0.4.  I am now getting 950Mb/s on UDP.  I was
>>using
>> 2.0.5 on my Macs for testing.  I compiled 2.0.4 and went from 800Mb/s to
>> 900Mb/s. So it looks like iperf is the problem here.
>
>Interesting, and good to know. iperf 2.0.4 had some problems with not
>shutting down cleanly that were fixed in 2.0.5, so thats why the version
>on the perfSONAR toolkit is 2.0.5.
>
>FWIW, for UDP testing, I switched to nuttcp about 1 year ago, as I find
>the results much more reliable than iperf.
>