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On 12/16/2014 11:33 AM, Georgios Dimitrakakis wrote:
> Rick,
>
> I haven't tried that yet
>
> I 'll do it asap and post the results.
>
>
> Can you recommend any specific tests that I should run on netperf?

I would start with this on the VM from which you are executing the scp:

netperf -t TCP_STREAM -H <name or IP of other VM>

If you happen to install from source (preferably top of trunk) I would 
suggest:

./configure --enable-demo

before building the netperf binary and then you can do something like:

netperf -t TCP_STREAM -H <name or IP of other VM> -D 1.0 -l <time>

where I would make <time> 10 or 20 seconds longer than it takes before 
the scp starts slowing down.

rick

>
>
> Regards,
>
>
> George
>
>> On 12/16/2014 11:09 AM, Georgios Dimitrakakis wrote:
>>> Changing
>>>
>>> gso on
>>> tso on
>>> gro off
>>>
>>>
>>> got me back to the initial status.
>>>
>>>
>>> Although now it starts with approximately 65-70MB/s  for a few seconds
>>> but then it drops down to 30MB/s
>>
>> What do you see if you use a "pure" networking benchmark such as
>> netperf or iperf?
>>
>> rick jones
>>
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> --