Yardstick Test Case Description TC0042ΒΆ

Network Performance
test case id OPNFV_YARDSTICK_TC042_DPDK pktgen latency measurements
metric L2 Network Latency
test purpose Measure L2 network latency when DPDK is enabled between hosts on different compute blades.
configuration

file: opnfv_yardstick_tc042.yaml

  • Packet size: 64 bytes
  • SLA(max_latency): 100usec
test tool

DPDK Pktgen-dpdk

(DPDK and Pktgen-dpdk are not part of a Linux distribution, hence they needs to be installed. As an example see the /yardstick/tools/ directory for how to generate a Linux image with DPDK and pktgen-dpdk included.)
references

DPDK

Pktgen-dpdk

ETSI-NFV-TST001
applicability Test can be configured with different packet sizes. Default values exist.
pre-test conditions

The test case image needs to be installed into Glance with DPDK and pktgen-dpdk included in it.

The NICs of compute nodes must support DPDK on POD.

And at least compute nodes setup hugepage.

If you want to achievement a hight performance result, it is recommend to use NUAM, CPU pin, OVS and so on.
test sequence description and expected result
step 1 The hosts are installed on different blades, as server and client. Both server and client have three interfaces. The first one is management such as ssh. The other two are used by DPDK.
step 2 Testpmd is invoked with configurations to forward packets from one DPDK port to the other on server.
step 3

Pktgen-dpdk is invoked with configurations as a traffic generator and logs are produced and stored on client.

Result: Logs are stored.
test verdict Fails only if SLA is not passed, or if there is a test case execution problem.