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authorrexlee8776 <limingjiang@huawei.com>2017-03-08 07:12:55 +0000
committerrexlee8776 <limingjiang@huawei.com>2017-03-08 07:12:55 +0000
commitfd54fcc22170aa880fc49730730ad80896e2e608 (patch)
tree025941493c552421e46f4c323bab1694c6d7fe01 /docs/userguide/opnfv_yardstick_tc002.rst
parent536076de790aed38b462edd8f8b2f079d3e828b2 (diff)
Yardstick Preliminary Documentation
JIRA: YARDSTICK-554 align with opnfvdocs path structure about testing projects Change-Id: I6c2f2d37e41447dccd76b9f4426d00fd85cb1e3b Signed-off-by: rexlee8776 <limingjiang@huawei.com>
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-.. This work is licensed under a Creative Commons Attribution 4.0 International
-.. License.
-.. http://creativecommons.org/licenses/by/4.0
-.. (c) OPNFV, Ericsson AB and others.
-
-*************************************
-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_NETWORK LATENCY |
-| | |
-+--------------+--------------------------------------------------------------+
-|metric | RTT (Round Trip Time) |
-| | |
-+--------------+--------------------------------------------------------------+
-|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. |
-| | |
-| | 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. |
-| | (For example also a Cirros image can be downloaded from |
-| | cirros-image_, it includes ping) |
-| | |
-+--------------+--------------------------------------------------------------+
-|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. |
-| | |
-| | 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 | 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 |
-| | 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. |
-| | |
-+--------------+--------------------------------------------------------------+
-|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. |
-| | |
-+--------------+--------------------------------------------------------------+
-|test sequence | description and expected result |
-| | |
-+--------------+--------------------------------------------------------------+
-|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. |
-| | |
-+--------------+--------------------------------------------------------------+