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Diffstat (limited to 'docs/userguide/opnfv_yardstick_tc011.rst')
| -rw-r--r-- | docs/userguide/opnfv_yardstick_tc011.rst | 81 |
1 files changed, 58 insertions, 23 deletions
diff --git a/docs/userguide/opnfv_yardstick_tc011.rst b/docs/userguide/opnfv_yardstick_tc011.rst index cf2fd5055..48bdef497 100644 --- a/docs/userguide/opnfv_yardstick_tc011.rst +++ b/docs/userguide/opnfv_yardstick_tc011.rst @@ -13,28 +13,22 @@ Yardstick Test Case Description TC011 |Packet delay variation between VMs | | | +--------------+--------------------------------------------------------------+ -|test case id | OPNFV_YARDSTICK_TC011_Packet delay variation between VMs | +|test case id | OPNFV_YARDSTICK_TC011_PACKET DELAY VARIATION BETWEEN VMs | | | | +--------------+--------------------------------------------------------------+ |metric | jitter: packet delay variation (ms) | | | | +--------------+--------------------------------------------------------------+ -|test purpose | Measure the packet delay variation sending the packets from | -| | one VM to the other. | +|test purpose | The purpose of TC011 is to evaluate the IaaS network | +| | performance with regards to network jitter (packet delay | +| | variation). | +| | It measures the packet delay variation sending the packets | +| | from one VM to the other. | | | | -+--------------+--------------------------------------------------------------+ -|configuration | File: opnfv_yardstick_tc011.yaml | -| | | -| | * options: | -| | protocol: udp # The protocol used by iperf3 tools | -| | bandwidth: 20m # It will send the given number of packets | -| | without pausing | -| | * runner: | -| | duration: 30 # Total test duration 30 seconds. | -| | | -| | * SLA (optional): | -| | jitter: 10 (ms) # The maximum amount of jitter that is | -| | accepted. | +| | The purpose is also to be able to spot the trends. | +| | Test results, graphs and similar shall be stored for | +| | comparison reasons and product evolution understanding | +| | between different OPNFV versions and/or configurations. | | | | +--------------+--------------------------------------------------------------+ |test tool | iperf3 | @@ -46,14 +40,34 @@ Yardstick Test Case Description TC011 | | | | | (iperf3 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.) | +| | image. As an example see the /yardstick/tools/ directory for | +| | how to generate a Linux image with pktgen included.) | | | | +--------------+--------------------------------------------------------------+ -|references | iperf3_ | +|test | iperf3 test is invoked between a host VM and a target VM. | +|description | | +| | Jitter calculations are continuously computed by the server, | +| | as specified by RTP in RFC 1889. The client records a 64 bit | +| | second/microsecond timestamp in the packet. The server | +| | computes the relative transit time as (server's receive time | +| | - client's send time). The client's and server's clocks do | +| | not need to be synchronized; any difference is subtracted | +| | outin the jitter calculation. Jitter is the smoothed mean of | +| | differences between consecutive transit times. | | | | -| | ETSI-NFV-TST001 | ++--------------+--------------------------------------------------------------+ +|configuration | File: opnfv_yardstick_tc011.yaml | +| | | +| | * options: | +| | protocol: udp # The protocol used by iperf3 tools | +| | bandwidth: 20m # It will send the given number of packets | +| | without pausing | +| | * runner: | +| | duration: 30 # Total test duration 30 seconds. | +| | | +| | * SLA (optional): | +| | jitter: 10 (ms) # The maximum amount of jitter that is | +| | accepted. | | | | +--------------+--------------------------------------------------------------+ |applicability | Test can be configured with different: | @@ -67,6 +81,15 @@ Yardstick Test Case Description TC011 | | serves as an example. | | | | +--------------+--------------------------------------------------------------+ +|usability | This test case is one of Yardstick's generic test. Thus it | +| | is runnable on most of the scenarios. | +| | | ++--------------+--------------------------------------------------------------+ +|references | iperf3_ | +| | | +| | ETSI-NFV-TST001 | +| | | ++--------------+--------------------------------------------------------------+ |pre-test | The test case image needs to be installed into Glance | |conditions | with iperf3 included in the image. | | | | @@ -76,12 +99,24 @@ Yardstick Test Case Description TC011 |test sequence | description and expected result | | | | +--------------+--------------------------------------------------------------+ -|step 1 | The hosts are installed, as server and client. iperf3 is | -| | invoked and logs are produced and stored. | +|step 1 | Two host VMs with iperf3 installed are booted, as server and | +| | client. | +| | | ++--------------+--------------------------------------------------------------+ +|step 2 | Yardstick is connected with the host VM by using ssh. | +| | A iperf3 server is started on the server VM via the ssh | +| | tunnel. | +| | | ++--------------+--------------------------------------------------------------+ +|step 3 | iperf3 benchmark is invoked. Jitter is calculated and check | +| | against the SLA. Logs are produced and stored. | | | | | | Result: Logs are stored. | | | | +--------------+--------------------------------------------------------------+ +|step 4 | The host VMs are deleted. | +| | | ++--------------+--------------------------------------------------------------+ |test verdict | Test should not PASS if any jitter is above the optional SLA | | | value, or if there is a test case execution problem. | | | | |