There is not an official data for PCIe latency and performance, while some customers pay attention to and request these data. This paper utilizes Lmbench lat_mem_rd tool and DPDK qdma_demo to test the PCIe latency and performance separately.
1) Plug Advantech iNIC (LX2160A) into LX2160ARDB.
2) Configure EP ATU outbound window at console.
3) Apply the patch to lmbench-3.0-a9, and recompile lmbench tool.
4) There is qdma_demo in iNIC kernel rootfs by default.