Yardstick Test Case Description TC072

Latency, Network Utilization, Throughput, Packet Loss
test case id	OPNFV_YARDSTICK_TC072_Latency, Network Utilization, Throughput,Packet Loss
metric	Number of flows, latency, throughput, Network Utilization, packet loss
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 hosts 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 and similar shall be stored for comparison reasons and product evolution understanding between different OPNFV versions and/or configurations.
configuration	file: opnfv_yardstick_tc072.yaml Packet size: 64 bytes Number of ports: 1, 10, 50, 100, 300, 500, 750 and 1000. The amount configured ports map from 2 up to 1001000 flows, respectively. Each port amount is run two times, for 20 seconds each. Then the next port_amount is run, and so on. During the test Network Utilization on both client and server, and the network latency between the client and server are measured. The client and server are distributed on different HW. For SLA max_ppm is set to 1000.
test tool	pktgen Pktgen is not always part of a Linux distribution, hence it needs to be installed. It is part of the Yardstick Glance image. (As an example see the /yardstick/tools/ directory for how to generate a Linux image with pktgen included.) ping Ping is normally part of any Linux distribution, hence it doesn’t need to be installed. It is also part of the Yardstick Glance image. (For example also a cirros image can be downloaded, it includes ping) sar The sar command writes to standard output the contents of selected cumulative activity counters in the operating system. sar is normally part of a Linux distribution, hence it doesn’t needs to be installed.
references	Ping and sar man pages pktgen ETSI-NFV-TST001
applicability	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 lose, 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.