docs/testing/user/userguide/opnfv_yardstick_tc024.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 TC024
   8 *************************************
   9
  10 .. _man-pages: http://manpages.ubuntu.com/manpages/trusty/man1/mpstat.1.html
  11
  12 +-----------------------------------------------------------------------------+
  13 | CPU Load                                                                    |
  14 |                                                                             |
  15 +--------------+--------------------------------------------------------------+
  16 |test case id  | OPNFV_YARDSTICK_TC024_CPU Load                               |
  17 |              |                                                              |
  18 +--------------+--------------------------------------------------------------+
  19 |metric        | CPU load                                                     |
  20 |              |                                                              |
  21 +--------------+--------------------------------------------------------------+
  22 |test purpose  | To evaluate the CPU load performance of the IaaS. This test  |
  23 |              | case should be run in parallel to other Yardstick test cases |
  24 |              | and not run as a stand-alone test case.                      |
  25 |              | Average, minimum and maximun values are obtained.            |
  26 |              | The purpose is also to be able to spot trends.               |
  27 |              | Test results, graphs and similar shall be stored for         |
  28 |              | comparison reasons and product evolution understanding       |
  29 |              | between different OPNFV versions and/or configurations.      |
  30 |              |                                                              |
  31 +--------------+--------------------------------------------------------------+
  32 |configuration | file: cpuload.yaml (in the 'samples' directory)              |
  33 |              |                                                              |
  34 |              | * interval: 1 - repeat, pausing every 1 seconds in-between.  |
  35 |              | * count: 10 - display statistics 10 times, then exit.        |
  36 |              |                                                              |
  37 +--------------+--------------------------------------------------------------+
  38 |test tool     | mpstat                                                       |
  39 |              |                                                              |
  40 |              | (mpstat is not always part of a Linux distribution, hence it |
  41 |              | needs to be installed. It is part of the Yardstick Glance    |
  42 |              | image. However, if mpstat is not present the TC instead uses |
  43 |              | /proc/stats as source to produce "mpstat" output.            |
  44 |              |                                                              |
  45 +--------------+--------------------------------------------------------------+
  46 |references    | man-pages_                                                   |
  47 |              |                                                              |
  48 +--------------+--------------------------------------------------------------+
  49 |applicability | Test can be configured with different:                       |
  50 |              |                                                              |
  51 |              |  * interval;                                                 |
  52 |              |  * count;                                                    |
  53 |              |  * runner Iteration and intervals.                           |
  54 |              |                                                              |
  55 |              | There are default values for each above-mentioned option.    |
  56 |              | Run in background with other test cases.                     |
  57 |              |                                                              |
  58 +--------------+--------------------------------------------------------------+
  59 |pre-test      | The test case image needs to be installed into Glance        |
  60 |conditions    | with mpstat included in it.                                  |
  61 |              |                                                              |
  62 |              | No POD specific requirements have been identified.           |
  63 |              |                                                              |
  64 +--------------+--------------------------------------------------------------+
  65 |test sequence | description and expected result                              |
  66 |              |                                                              |
  67 +--------------+--------------------------------------------------------------+
  68 |step 1        | The host is installed. The related TC, or TCs, is            |
  69 |              | invoked and mpstat logs are produced and stored.             |
  70 |              |                                                              |
  71 |              | Result: Stored logs                                          |
  72 |              |                                                              |
  73 +--------------+--------------------------------------------------------------+
  74 |test verdict  | None. CPU load results are fetched and stored.               |
  75 |              |                                                              |
  76 +--------------+--------------------------------------------------------------+