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Diffstat (limited to 'docs/userguide/opnfv_yardstick_tc002.rst')
| -rw-r--r-- | docs/userguide/opnfv_yardstick_tc002.rst | 97 |
1 files changed, 70 insertions, 27 deletions
diff --git a/docs/userguide/opnfv_yardstick_tc002.rst b/docs/userguide/opnfv_yardstick_tc002.rst index 193fc531f..c98780fd5 100644 --- a/docs/userguide/opnfv_yardstick_tc002.rst +++ b/docs/userguide/opnfv_yardstick_tc002.rst @@ -8,34 +8,37 @@ Yardstick Test Case Description TC002 ************************************* .. _cirros-image: https://download.cirros-cloud.net +.. _Ping: https://linux.die.net/man/8/ping +-----------------------------------------------------------------------------+ |Network Latency | | | +--------------+--------------------------------------------------------------+ -|test case id | OPNFV_YARDSTICK_TC002_NW LATENCY | +|test case id | OPNFV_YARDSTICK_TC002_NETWORK LATENCY | | | | +--------------+--------------------------------------------------------------+ -|metric | RTT, Round Trip Time | +|metric | RTT (Round Trip Time) | | | | +--------------+--------------------------------------------------------------+ -|test purpose | To do a basic verification that network latency is within | -| | acceptable boundaries when packets travel between hosts | -| | located on same or different compute blades. | -| | 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. | +|test purpose | The purpose of TC002 is to do a basic verification that | +| | network latency is within acceptable boundaries when packets | +| | travel between hosts located on same or different compute | +| | blades. | | | | -+--------------+--------------------------------------------------------------+ -|configuration | file: opnfv_yardstick_tc002.yaml | -| | | -| | Packet size 100 bytes. Total test duration 600 seconds. | -| | One ping each 10 seconds. SLA RTT is set to maximum 10 ms. | +| | 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 | ping | | | | +| | Ping is a computer network administration software utility | +| | used to test the reachability of a host on an Internet | +| | Protocol (IP) network. It measures the round-trip time for | +| | packet sent from the originating host to a destination | +| | computer that are echoed back to the source. | +| | | | | Ping is normally part of any Linux distribution, hence it | | | doesn't need to be installed. It is also part of the | | | Yardstick Docker image. | @@ -43,27 +46,55 @@ Yardstick Test Case Description TC002 | | cirros-image_, it includes ping) | | | | +--------------+--------------------------------------------------------------+ -|references | Ping man page | +|test topology | Ping packets (ICMP protocol's mandatory ECHO_REQUEST | +| | datagram) are sent from host VM to target VM(s) to elicit | +| | ICMP ECHO_RESPONSE. | | | | -| | ETSI-NFV-TST001 | +| | For one host VM there can be multiple target VMs. | +| | Host VM and target VM(s) can be on same or different compute | +| | blades. | +| | | ++--------------+--------------------------------------------------------------+ +|configuration | file: opnfv_yardstick_tc002.yaml | +| | | +| | Packet size 100 bytes. Test duration 60 seconds. | +| | One ping each 10 seconds. Test is iterated two times. | +| | SLA RTT is set to maximum 10 ms. | | | | +--------------+--------------------------------------------------------------+ -|applicability | Test case can be configured with different packet sizes, | -| | burst sizes, ping intervals and test duration. | +|applicability | This test case can be configured with different: | +| | | +| | * packet sizes; | +| | * burst sizes; | +| | * ping intervals; | +| | * test durations; | +| | * test iterations. | +| | | +| | Default values exist. | +| | | | | SLA is optional. The SLA in this test case serves as an | -| | example. Considerably lower RTT is expected, and | -| | also normal to achieve in balanced L2 environments. However, | -| | to cover most configurations, both bare metal and fully | -| | virtualized ones, this value should be possible to achieve | -| | and acceptable for black box testing. Many real time | +| | example. Considerably lower RTT is expected, and also normal | +| | to achieve in balanced L2 environments. However, to cover | +| | most configurations, both bare metal and fully virtualized | +| | ones, this value should be possible to achieve and | +| | acceptable for black box testing. Many real time | | | applications start to suffer badly if the RTT time is higher | | | than this. Some may suffer bad also close to this RTT, while | | | others may not suffer at all. It is a compromise that may | | | have to be tuned for different configuration purposes. | | | | +--------------+--------------------------------------------------------------+ -|pre-test | The test case image needs to be installed into Glance | -|conditions | with ping included in it. | +|usability | This test case is one of Yardstick's generic test. Thus it | +| | is runnable on most of the scenarios. | +| | | ++--------------+--------------------------------------------------------------+ +|references | Ping_ | +| | | +| | ETSI-NFV-TST001 | +| | | ++--------------+--------------------------------------------------------------+ +|pre-test | The test case image (cirros-image) needs to be installed | +|conditions | into Glance with ping included in it. | | | | | | No POD specific requirements have been identified. | | | | @@ -71,12 +102,24 @@ Yardstick Test Case Description TC002 |test sequence | description and expected result | | | | +--------------+--------------------------------------------------------------+ -|step 1 | The hosts are installed, as server and client. Ping is | -| | invoked and logs are produced and stored. | +|step 1 | Two host VMs are booted, as server and client. | +| | | ++--------------+--------------------------------------------------------------+ +|step 2 | Yardstick is connected with the server VM by using ssh. | +| | 'ping_benchmark' bash script is copyied from Jump Host to | +| | the server VM via the ssh tunnel. | +| | | ++--------------+--------------------------------------------------------------+ +|step 3 | Ping is invoked. Ping packets are sent from server VM to | +| | client VM. RTT results are calculated and checked against | +| | the SLA. Logs are produced and stored. | | | | | | Result: Logs are stored. | | | | +--------------+--------------------------------------------------------------+ +|step 4 | Two host VMs are deleted. | +| | | ++--------------+--------------------------------------------------------------+ |test verdict | Test should not PASS if any RTT is above the optional SLA | | | value, or if there is a test case execution problem. | | | | |