docs/report/vpp_performance_tests/csit_release_notes.rst

   1 Release Notes
   2 =============
   3
   4 Changes in |csit-release|
   5 -------------------------
   6
   7 #. VPP PERFORMANCE TESTS
   8
   9    - CSIT test environment is versioned, see
  10      :ref:`test_environment_versioning`.
  11
  12    - **Upgrade to Ubuntu 20.04 LTS**: Reinstall base operating system to Ubuntu
  13      20.04.2 LTS. Upgrade includes also baseline Docker containers used for
  14      spawning topology.
  15
  16    - **AF_XDP**: Added af_xdp driver testing for all testcases.
  17
  18    - **GTPU tunnel**: Added GTPU HW Offload IPv4 routing tests.
  19
  20    - **Telemetry retouch**: Redesign telemetry retrieval from DUT. Include
  21      VPP perfmon plugin telemetry.
  22
  23 #. TEST FRAMEWORK
  24
  25    - **CSIT PAPI support**: Due to issues with PAPI performance, VAT is
  26      still used in CSIT for all VPP scale tests. See known issues below.
  27
  28    - **General Code Housekeeping**: Ongoing code optimizations,
  29      speed ups and bug fixes.
  30
  31 #. PRESENTATION AND ANALYTICS LAYER
  32
  33    - **Graphs improvements**: Updated Packet Latency graphs,
  34      see :ref:`latency_methodology`.
  35
  36 .. raw:: latex
  37
  38     \clearpage
  39
  40 .. _vpp_known_issues:
  41
  42 Known Issues
  43 ------------
  44
  45 List of known issues in |csit-release| for VPP performance tests:
  46
  47 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  48 | #  | JiraID                                  | Issue Description                                                                                         |
  49 +====+=========================================+===========================================================================================================+
  50 |  1 | `CSIT-1782                              | Multicore AVF tests are failing when trying to create interface.                                          |
  51 |    | <https://jira.fd.io/browse/CSIT-1782>`_ |                                                                                                           |
  52 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  53 |  2 | `CSIT-1763                              | Adapt ramp-up phase of nat44 tests for different frame sizes.                                             |
  54 |    | <https://jira.fd.io/browse/CSIT-1763>`_ | Currently ramp-up phase rate and duration values are correctly set for tests with 64B frame size.         |
  55 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  56 |  3 | `CSIT-1671                              | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much   |
  57 |    | <https://jira.fd.io/browse/CSIT-1671>`_ | longer to program VPP). This needs to be addressed on the PAPI side.                                      |
  58 |    +-----------------------------------------+ The usual PAPI library spends too much time parsing arguments, so even with async processing (hundreds of |
  59 |    | `VPP-1763                               | commands in flight over socket), the VPP configuration for large scale tests (millions of messages) takes |
  60 |    | <https://jira.fd.io/browse/VPP-1763>`_  | too long.                                                                                                 |
  61 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  62
  63 Root Cause Analysis for Performance Changes
  64 -------------------------------------------
  65
  66 List of RCAs in |csit-release| for VPP performance changes:
  67
  68 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  69 | #  | JiraID                                  | Issue Description                                                                                         |
  70 +====+=========================================+===========================================================================================================+
  71 |  1 | `VPP-1972                               | One VPP change has decreased performance of NAT44ed processing, both slow path and fast path.             |
  72 |    | <https://jira.fd.io/browse/VPP-1972>`_  |                                                                                                           |
  73 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+