Yardstick Test Case Description TC009ΒΆ

Packet Loss
test case id OPNFV_YARDSTICK_TC009_NW PERF, Packet loss
metric Number of flows, packets lost and throughput
test purpose To evaluate the IaaS network performance with regards to flows and throughput, such as if and how different amounts of flows matter for the throughput between VMs on different compute blades. Typically e.g. the performance of a vSwitch depends on the number of flows running through it. Also performance of other equipment or entities can depend on the number of flows or the packet sizes used. The purpose is also to be able to spot trends. Test results, graphs ans similar shall be stored for comparison reasons and product evolution understanding between different OPNFV versions and/or configurations.

file: opnfv_yardstick_tc009.yaml

Packet size: 64 bytes

Number of ports: 1, 10, 50, 100, 500 and 1000. The amount of configured ports map from 2 up to 1001000 flows, respectively. Each port amount is run ten times, for 20 seconds each. Then the next port_amount is run, and so on.

The client and server are distributed on different HW.

For SLA max_ppm is set to 1000.

test tool


(Pktgen is not always part of a Linux distribution, hence it needs to be installed. It is part of the Yardstick Docker image. As an example see the /yardstick/tools/ directory for how to generate a Linux image with pktgen included.)





Test can be configured with different packet sizes, amount of flows and test duration. Default values exist.

SLA (optional): max_ppm: The number of packets per million packets sent that are acceptable to loose, not received.

pre-test conditions

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

No POD specific requirements have been identified.

test sequence description and expected result
step 1

The hosts are installed, as server and client. pktgen is invoked and logs are produced and stored.

Result: logs are stored.

test verdict Fails only if SLA is not passed, or if there is a test case execution problem.