[j-nsp] Finding drops

[Olivier Benghozi]

My 2 cents: it could be interesting to check if running the system in hyper-mode makes a difference (that should normally be expected).

> Le 22 janv. 2019 à 20:42, adamv0025 at netconsultings.com a écrit :
> 
> That sort of indicates that for the 64B stream the packets are dropped by the platform -do you get the confirmation on the RX end of the tester about the missing packets? Not sure if this is about misaligned counters or actually about dropped packets?
> 
> How I read your test is that presumably this is 40G in and 40G out the same PFE (back to back packets @ 64B or 100B packets) 
> So we should just consider single PFE performance but still the resulting PPS rate is noooowhere near the theoretical PPS budget.
> How are the PFEs on 204 linked together (any sacrifices in the PFE BW/PPS budget to account for the fabric)? On MPC7E all 4 PFEs would be connected via fabric.  
> So nothing really adds up here...  shouldn't be happening -not at these rates