_Performance Testing PASS_

Branch: dpdk-next-net

a658d9e116088790dd6b976f64e5303d59eb950b --> performance testing pass

Test environment and result as below:

Ubuntu 18.04
Kernel: 4.15.0-generic
Compiler: 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     | 0.030                               |
+------------+---------+-------------------------------------+
| 128        | 256     | 0.090                               |
+------------+---------+-------------------------------------+
| 256        | 256     | 0.258                               |
+------------+---------+-------------------------------------+
| 512        | 256     | 0.025                               |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.177                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | 0.033                               |
+------------+---------+-------------------------------------+

Ubuntu 18.04
Kernel: 4.15.0-generic
Compiler: 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     | -0.164                              |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.055                              |
+------------+---------+-------------------------------------+
| 256        | 256     | -0.024                              |
+------------+---------+-------------------------------------+
| 512        | 256     | -0.086                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.008                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | 0.005                               |
+------------+---------+-------------------------------------+

Ubuntu 18.04
Kernel: 4.15.0-generic
Compiler: 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     | 0.040                               |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.150                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 0.221                               |
+------------+---------+-------------------------------------+
| 512        | 256     | 0.038                               |
+------------+---------+-------------------------------------+
| 1024       | 256     | 0.010                               |
+------------+---------+-------------------------------------+
| 1518       | 256     | -0.007                              |
+------------+---------+-------------------------------------+

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/tarballs/11716/

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