Yardstick Test Case Description TC061ΒΆ

Network Utilization
test case id OPNFV_YARDSTICK_TC061_Network Utilization
metric Network utilization
test purpose To evaluate the IaaS network capability with regards to network utilization, including Total number of packets received per second, Total number of packets transmitted per second, Total number of kilobytes received per second, Total number of kilobytes transmitted per second, Number of compressed packets received per second (for cslip etc.), Number of compressed packets transmitted per second, Number of multicast packets received per second, Utilization percentage of the network interface. This test case should be run in parallel to other Yardstick test cases and not run as a stand-alone test case. Measure the network usage statistics from the network devices Average, minimum and maximun values are obtained. 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: netutilization.yaml (in the ‘samples’ directory)

  • interval: 1 - repeat, pausing every 1 seconds in-between.
  • count: 1 - display statistics 1 times, then exit.
test tool

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

man-pages

ETSI-NFV-TST001
applicability

Test can be configured with different:

  • interval;
  • count;
  • runner Iteration and intervals.

There are default values for each above-mentioned option. Run in background with other test cases.
pre-test conditions

The test case image needs to be installed into Glance with sar included in the image.

No POD specific requirements have been identified.
test sequence description and expected result.
step 1

The host is installed as client. The related TC, or TCs, is invoked and sar logs are produced and stored.

Result: logs are stored.
test verdict None. Network utilization results are fetched and stored.