docs/userguide/opnfv_yardstick_tc038.rst

   1 .. This work is licensed under a Creative Commons Attribution 4.0 International
   2 .. License.
   3 .. http://creativecommons.org/licenses/by/4.0
   4 .. (c) OPNFV, Ericsson AB and others.
   5
   6 *************************************
   7 Yardstick Test Case Description TC038
   8 *************************************
   9
  10 .. _cirros: https://download.cirros-cloud.net
  11 .. _pktgen: https://www.kernel.org/doc/Documentation/networking/pktgen.txt
  12
  13 +-----------------------------------------------------------------------------+
  14 |Latency, CPU Load, Throughput, Packet Loss (Extended measurements)           |
  15 |                                                                             |
  16 +--------------+--------------------------------------------------------------+
  17 |test case id  | OPNFV_YARDSTICK_TC038_Latency,CPU Load,Throughput,Packet Loss|
  18 |              |                                                              |
  19 +--------------+--------------------------------------------------------------+
  20 |metric        | Number of flows, latency, throughput, CPU load, packet loss  |
  21 |              |                                                              |
  22 +--------------+--------------------------------------------------------------+
  23 |test purpose  | To evaluate the IaaS network performance with regards to     |
  24 |              | flows and throughput, such as if and how different amounts   |
  25 |              | of flows matter for the throughput between hosts on different|
  26 |              | compute blades. Typically e.g. the performance of a vSwitch  |
  27 |              | depends on the number of flows running through it. Also      |
  28 |              | performance of other equipment or entities can depend        |
  29 |              | on the number of flows or the packet sizes used.             |
  30 |              | The purpose is also to be able to spot trends. Test results, |
  31 |              | graphs ans similar shall be stored for comparison reasons and|
  32 |              | product evolution understanding between different OPNFV      |
  33 |              | versions and/or configurations.                              |
  34 |              |                                                              |
  35 +--------------+--------------------------------------------------------------+
  36 |configuration | file: opnfv_yardstick_tc038.yaml                             |
  37 |              |                                                              |
  38 |              | Packet size: 64 bytes                                        |
  39 |              | Number of ports: 1, 10, 50, 100, 300, 500, 750 and 1000.     |
  40 |              | The amount configured ports map from 2 up to 1001000 flows,  |
  41 |              | respectively. Each port amount is run ten times, for 20      |
  42 |              | seconds each. Then the next port_amount is run, and so on.   |
  43 |              | During the test CPU load on both client and server, and the  |
  44 |              | network latency between the client and server are measured.  |
  45 |              | The client and server are distributed on different HW.       |
  46 |              | For SLA max_ppm is set to 1000.                              |
  47 |              |                                                              |
  48 +--------------+--------------------------------------------------------------+
  49 |test tool     | pktgen                                                       |
  50 |              |                                                              |
  51 |              | (Pktgen is not always part of a Linux distribution, hence it |
  52 |              | needs to be installed. It is part of the Yardstick Glance    |
  53 |              | image.                                                       |
  54 |              | As an example see the /yardstick/tools/ directory for how    |
  55 |              | to generate a Linux image with pktgen included.)             |
  56 |              |                                                              |
  57 |              | ping                                                         |
  58 |              |                                                              |
  59 |              | Ping is normally part of any Linux distribution, hence it    |
  60 |              | doesn't need to be installed. It is also part of the         |
  61 |              | Yardstick Glance image.                                      |
  62 |              | (For example also a cirros_ image can be downloaded, it      |
  63 |              | includes ping)                                               |
  64 |              |                                                              |
  65 |              | mpstat                                                       |
  66 |              |                                                              |
  67 |              | (Mpstat is not always part of a Linux distribution, hence it |
  68 |              | needs to be installed. It is part of the Yardstick Glance    |
  69 |              | image.                                                       |
  70 |              |                                                              |
  71 +--------------+--------------------------------------------------------------+
  72 |references    | Ping and Mpstat man pages                                    |
  73 |              |                                                              |
  74 |              | pktgen_                                                      |
  75 |              |                                                              |
  76 |              | ETSI-NFV-TST001                                              |
  77 |              |                                                              |
  78 +--------------+--------------------------------------------------------------+
  79 |applicability | Test can be configured with different packet sizes, amount   |
  80 |              | of flows and test duration. Default values exist.            |
  81 |              |                                                              |
  82 |              | SLA (optional): max_ppm: The number of packets per million   |
  83 |              | packets sent that are acceptable to loose, not received.     |
  84 |              |                                                              |
  85 +--------------+--------------------------------------------------------------+
  86 |pre-test      | The test case image needs to be installed into Glance        |
  87 |conditions    | with pktgen included in it.                                  |
  88 |              |                                                              |
  89 |              | No POD specific requirements have been identified.           |
  90 |              |                                                              |
  91 +--------------+--------------------------------------------------------------+
  92 |test sequence | description and expected result                              |
  93 |              |                                                              |
  94 +--------------+--------------------------------------------------------------+
  95 |step 1        | The hosts are installed, as server and client. pktgen is     |
  96 |              | invoked and logs are produced  and stored.                   |
  97 |              |                                                              |
  98 |              | Result: Logs are stored.                                     |
  99 |              |                                                              |
 100 +--------------+--------------------------------------------------------------+
 101 |test verdict  | Fails only if SLA is not passed, or if there is a test case  |
 102 |              | execution problem.                                           |
 103 |              |                                                              |
 104 +--------------+--------------------------------------------------------------+