_Performance Testing PASS_

Branch: dpdk-next-net

a0538b8e14714288b4bc7f4fb50cf472f90aee5d --> 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     | 26.861                              |
+------------+---------+-------------------------------------+
| 128        | 256     | 26.145                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 24.627                              |
+------------+---------+-------------------------------------+
| 512        | 256     | 18.783                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | 9.580                               |
+------------+---------+-------------------------------------+
| 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     | 56.584                              |
+------------+---------+-------------------------------------+
| 128        | 256     | 50.571                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 38.066                              |
+------------+---------+-------------------------------------+
| 512        | 256     | 22.200                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | 11.569                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | 8.646                               |
+------------+---------+-------------------------------------+

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     | 28.543                              |
+------------+---------+-------------------------------------+
| 128        | 256     | 25.811                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 19.168                              |
+------------+---------+-------------------------------------+
| 512        | 256     | 11.742                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | 5.984                               |
+------------+---------+-------------------------------------+
| 1518       | 256     | 4.062                               |
+------------+---------+-------------------------------------+

https://lab.dpdk.org/results/dashboard/tarballs/4303/

UNH-IOL DPDK Performance Test Lab