[dpdk-dev] KNI performance is not what is claimed

[Stephen Hemminger]

I wonder if KNI is claiming performance that was never measured on current CPU, 
OS, DPDK.

With single stream and TCP testing on IXGBE (DPDK), I see lowest performance 
with KNI.

                Rx              Tx
        KNI     3.2 Gbit/sec    1.3 Gbit/sec
        TAP     4.9             4.7
        Virtio  5.6             8.6

Perhaps for 18.11 we should change documentation to remove language claiming
better performance with KNI, and then plan for future deprecation?