_Performance Testing PASS_

Branch: dpdk-next-net

d27d8f2d85bb50660c439316e75a945165bff954 --> 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     | 0.069                               |
+------------+---------+-------------------------------------+
| 128        | 256     | 0.025                               |
+------------+---------+-------------------------------------+
| 256        | 256     | 0.053                               |
+------------+---------+-------------------------------------+
| 512        | 256     | 0.232                               |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.085                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | -0.003                              |
+------------+---------+-------------------------------------+

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     | 0.128                               |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.057                              |
+------------+---------+-------------------------------------+
| 256        | 256     | -0.073                              |
+------------+---------+-------------------------------------+
| 512        | 256     | 0.024                               |
+------------+---------+-------------------------------------+
| 1024       | 256     | 0.011                               |
+------------+---------+-------------------------------------+
| 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     | 0.182                               |
+------------+---------+-------------------------------------+
| 128        | 256     | 0.142                               |
+------------+---------+-------------------------------------+
| 256        | 256     | -0.545                              |
+------------+---------+-------------------------------------+
| 512        | 256     | 0.021                               |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.031                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | 0.006                               |
+------------+---------+-------------------------------------+

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/tarballs/13133/

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