2.4.7. VM vhost Connections

Following sections include summary graphs of VPP Phy-to-VM(s)-to-Phy performance with VM virtio and VPP vhost-user virtual interfaces, including NDR throughput (zero packet loss) and PDR throughput (<0.5% packet loss). Performance is reported for VPP running in multiple configurations of VPP worker thread(s), a.k.a. VPP data plane thread(s), and their physical CPU core(s) placement.

2.4.7.1. NDR Throughput

VPP NDR 64B packet throughput in 1t1c setup (1thread, 1core) is presented in the graph below.

Figure 1a. VPP 1thread 1core - NDR Throughput for Phy-to-VM-to-Phy VM vhost-user selected TCs.

CSIT source code for the test cases used for above plots can be found in CSIT git repository.

Figure 1b. VPP 1thread 1core - NDR Throughput for Phy-to-VM-to-Phy VM vhost-user selected TCs.

CSIT source code for the test cases used for above plots can be found in CSIT git repository.

VPP NDR 64B packet throughput in 2t2c setup (2thread, 2core) is presented in the graph below.

Figure 2a. VPP 2threads 2cores - NDR Throughput for Phy-to-VM-to-Phy VM vhost-user selected TCs.

CSIT source code for the test cases used for above plots can be found in CSIT git repository.

Figure 2b. VPP 2threads 2cores - NDR Throughput for Phy-to-VM-to-Phy VM vhost-user selected TCs.

CSIT source code for the test cases used for above plots can be found in CSIT git repository.

2.4.7.2. PDR Throughput

VPP PDR 64B packet throughput in 1t1c setup (1thread, 1core) is presented in the graph below. PDR measured for 0.5% packet loss ratio.

Figure 3a. VPP 1thread 1core - PDR Throughput for Phy-to-VM-to-Phy VM vhost-user selected TCs.

CSIT source code for the test cases used for above plots can be found in CSIT git repository.

Figure 3b. VPP 1thread 1core - PDR Throughput for Phy-to-VM-to-Phy VM vhost-user selected TCs.

CSIT source code for the test cases used for above plots can be found in CSIT git repository.

VPP PDR 64B packet throughput in 2t2c setup (2thread, 2core) is presented in the graph below. PDR measured for 0.5% packet loss ratio.

Figure 4a. VPP 2thread 2core - PDR Throughput for Phy-to-VM-to-Phy VM vhost-user selected TCs.

CSIT source code for the test cases used for above plots can be found in CSIT git repository.

Figure 4b. VPP 2thread 2core - PDR Throughput for Phy-to-VM-to-Phy VM vhost-user selected TCs.

CSIT source code for the test cases used for above plots can be found in CSIT git repository.