_Performance Testing PASS_

Branch: dpdk-next-net

915b06030494585931db3bc41037bc267a379e40 --> performance testing pass

Test environment and result as below:

Ubuntu 18.04
Kernel: 4.15.0-generic
GCC: 7.4
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     | -0.234                              |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.045                              |
+------------+---------+-------------------------------------+
| 256        | 256     | -0.072                              |
+------------+---------+-------------------------------------+
| 512        | 256     | -0.179                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | 0.006                               |
+------------+---------+-------------------------------------+
| 1518       | 256     | -0.037                              |
+------------+---------+-------------------------------------+

Ubuntu 18.04
Kernel: 4.15.0-generic
GCC: 7.4
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     | -0.082                              |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.161                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 0.015                               |
+------------+---------+-------------------------------------+
| 512        | 256     | 0.036                               |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.006                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | -0.012                              |
+------------+---------+-------------------------------------+

Ubuntu 18.04
Kernel: 4.15.0-generic
GCC: 7.4
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     | -0.089                              |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.192                              |
+------------+---------+-------------------------------------+
| 256        | 256     | -0.028                              |
+------------+---------+-------------------------------------+
| 512        | 256     | 0.024                               |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.004                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | -0.015                              |
+------------+---------+-------------------------------------+

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/tarballs/7982/

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