_Performance Testing issues_

Branch: dpdk-next-crypto

08a234788ee548796fd6b394c7e897a2bf1df1b3 --> performance testing fail

Test environment and result as below:

Ubuntu 18.04
Kernel: 4.15.0-generic
GCC: 7.4
NIC: Intel Corporation Ethernet Converged Network Adapter 82599ES 10000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 0/3

Detail performance results: 
+------------+---------+-------------------------------------+
| frame_size | txd/rxd | throughput difference from expected |
+============+=========+=====================================+
| 64         | 128     | 0.110                               |
+------------+---------+-------------------------------------+
| 64         | 512     | -0.454                              |
+------------+---------+-------------------------------------+
| 64         | 2048    | 0.066                               |
+------------+---------+-------------------------------------+

Ubuntu 18.04
Kernel: 4.15.0-generic
GCC: 7.4
NIC: Intel Corporation Ethernet Converged Network Adapter XL710-QDA2 40000 Mbps
Target: x86_64-native-linuxapp-gcc
Fail/Total: 1/2

Detail performance results: 
+------------+---------+-------------------------------------+
| frame_size | txd/rxd | throughput difference from expected |
+============+=========+=====================================+
| 64         | 512     | -2.173                              |
+------------+---------+-------------------------------------+
| 64         | 2048    | 0.347                               |
+------------+---------+-------------------------------------+

https://lab.dpdk.org/results/dashboard/tarballs/7096/

UNH-IOL DPDK Performance Test Lab

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