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On 09/03/2014 11:47 AM, Ajay Kalambur (akalambu) wrote:
> Hi
> Looking into the following blueprint which requires that network
> performance tests be done as part of a scenario
> I plan to implement this using iperf and basically a scenario which
> includes a client/server VM pair

My experience with netperf over the years has taught me that when there 
is just the single stream and pair of "systems" one won't actually know 
if the performance was limited by inbound, or outbound.  That is why the 
likes of

http://www.netperf.org/svn/netperf2/trunk/doc/examples/netperf_by_flavor.py

and

http://www.netperf.org/svn/netperf2/trunk/doc/examples/netperf_by_quantum.py

apart from being poorly written python :)  Will launch several instances 
of a given flavor and then run aggregate tests on the Instance Under 
Test.  Those aggregate tests will include inbound, outbound, 
bidirectional, aggregate small packet and then a latency test.

happy benchmarking,

rick jones