_Performance Testing PASS_

Branch: dpdk-next-virtio

98ada88ef6b1c03b480e12c3ddccfc429711baea --> 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     | 0.443                               |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.041                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 0.089                               |
+------------+---------+-------------------------------------+
| 512        | 256     | -0.216                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.046                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | 0.027                               |
+------------+---------+-------------------------------------+

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     | -0.205                              |
+------------+---------+-------------------------------------+
| 128        | 256     | -0.061                              |
+------------+---------+-------------------------------------+
| 256        | 256     | 0.030                               |
+------------+---------+-------------------------------------+
| 512        | 256     | -0.020                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | 0.003                               |
+------------+---------+-------------------------------------+
| 1518       | 256     | -0.008                              |
+------------+---------+-------------------------------------+

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     | -0.067                              |
+------------+---------+-------------------------------------+
| 128        | 256     | 0.178                               |
+------------+---------+-------------------------------------+
| 256        | 256     | -0.052                              |
+------------+---------+-------------------------------------+
| 512        | 256     | -0.010                              |
+------------+---------+-------------------------------------+
| 1024       | 256     | -0.003                              |
+------------+---------+-------------------------------------+
| 1518       | 256     | -0.016                              |
+------------+---------+-------------------------------------+

To view detailed results, visit:
https://lab.dpdk.org/results/dashboard/tarballs/9299/

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