_Performance Testing PASS_

Branch: dpdk-next-net

8b34df43a7dfe535cf196aa23b86e8f9220cdc41 --> performance testing pass

Test environment and result as below:

Ubuntu 16.04
Kernel: 4.4.0-109-generic
GCC: 5.4.0-6ubuntu1~16.04.6
NIC: Mellanox ConnectX-4 Lx 40000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 0/6

Detail performance results: 
+------------+---------+-------------------------------------+
| frame_size | txd/rxd | throughput difference from expected |
+============+=========+=====================================+
| 64         | 256     | 26.868                              |
+------------+---------+-------------------------------------+
| 128        | 256     | 26.349                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 24.695                              |
+------------+---------+-------------------------------------+
| 512        | 256     | 18.783                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | 9.570                               |
+------------+---------+-------------------------------------+
| 1518       | 256     | 6.500                               |
+------------+---------+-------------------------------------+

Ubuntu 16.04
Kernel: 4.4.0-109-generic
GCC: 5.4.0-6ubuntu1~16.04.6
NIC: Mellanox ConnectX-5 100000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 0/6

Detail performance results: 
+------------+---------+-------------------------------------+
| frame_size | txd/rxd | throughput difference from expected |
+============+=========+=====================================+
| 64         | 256     | 56.338                              |
+------------+---------+-------------------------------------+
| 128        | 256     | 50.392                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 38.036                              |
+------------+---------+-------------------------------------+
| 512        | 256     | 22.100                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | 11.512                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | 8.602                               |
+------------+---------+-------------------------------------+

Ubuntu 16.04
Kernel: 4.4.0-109-generic
GCC: 5.4.0-6ubuntu1~16.04.6
NIC: Mellanox ConnectX-4 Lx 25000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 0/6

Detail performance results: 
+------------+---------+-------------------------------------+
| frame_size | txd/rxd | throughput difference from expected |
+============+=========+=====================================+
| 64         | 256     | 28.410                              |
+------------+---------+-------------------------------------+
| 128        | 256     | 25.843                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 19.115                              |
+------------+---------+-------------------------------------+
| 512        | 256     | 11.734                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | 5.985                               |
+------------+---------+-------------------------------------+
| 1518       | 256     | 4.063                               |
+------------+---------+-------------------------------------+

https://lab.dpdk.org/results/dashboard/tarballs/4279/

UNH-IOL DPDK Performance Test Lab