Hello, I am testing single round-trip latency of a single message using DPDK and POSIX.
The round-trip latency that I am talking about is that I send one message in other words rte_mbuf *m[1] from client to server, and the server echos back to the client . I have tested this same thing on both POSIX and DPDK, and DPDK performance is really bad when I do this. for example when using POSIX the total round-trip latency is 1275.666667 usec while when I use DPDK the total round-trip latency is 61322 In the past, I have only tested DPDK based on run-time on sending a bulk of data, for example 10 Gigabyte of files, in that case, I remember that DPDK outperforms POSIX. I believe that I am using the DPDK in the wrong way, or missing something very critical. the test cases that I have built can be viewed here. https://github.com/SungHoHong2/Ceph-Experiment/tree/master/DPDK-FUSE/FUSE-2nd Would it be possible to know how I can improve the performance of a round-trip latency of a single message? (Or is this not ideal for DPDK?) Best Sungho Hong
