docs/report/vpp_performance_tests/csit_release_notes.rst

   1 .. _vpp_performance_tests_release_notes:
   2
   3 Release Notes
   4 =============
   5
   6 Changes in |csit-release|
   7 -------------------------
   8
   9 #. VPP PERFORMANCE TESTS
  10
  11    - **Intel Xeon Ice Lake**: Performance test data for these platforms
  12      continues to be provided by external Intel benchmarking labs
  13      executing |csit-release| tests. For details about the physical
  14      setup see :ref:`tested_physical_topologies`.
  15
  16    - **Reduction of tests**: Removed certain test variations executed
  17      iteratively for the report (as well as in daily and weekly
  18      trending) due to physical testbeds overload.
  19
  20 #. TEST FRAMEWORK
  21
  22    - **CSIT test environment** version has been updated to ver. 9, see
  23      :ref:`test_environment_versioning`.
  24
  25    - **CSIT PAPI support**: Due to issues with PAPI performance, and
  26      deprecation of VAT, CLI is used in CSIT for many VPP scale tests.
  27      See known issues below.
  28
  29    - **General Code Housekeeping**: Ongoing code optimizations and bug
  30      fixes.
  31
  32 #. PRESENTATION AND ANALYTICS LAYER
  33
  34    - **Graphs improvements**: Updated Packet Latency graphs,
  35      see :ref:`latency_methodology`.
  36
  37 .. raw:: latex
  38
  39     \clearpage
  40
  41 .. _vpp_known_issues:
  42
  43 Known Issues
  44 ------------
  45
  46 Fixed
  47 _____
  48
  49 Issues reported in previous releases which were fixed in this release:
  50
  51 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  52 |  # | JiraID                                  | Issue Description                                                                                         |
  53 +====+=========================================+===========================================================================================================+
  54 |  1 | `CSIT-1789                              | AVF driver does not perform RSS in a deterministic way.                                                   |
  55 |    | <https://jira.fd.io/browse/CSIT-1789>`_ | VPP now uses the same RSS key with AVF driver as with DPDK driver.                                        |
  56 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  57 |  2 | `CSIT-1786                              | IP4 and IP6 scale tests failing with no traffic forwarded.                                                |
  58 |    | <https://jira.fd.io/browse/CSIT-1786>`_ | CSIT replaced the old single VAT command by file full of "exec" CLI commands executed by VAT.             |
  59 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  60
  61 Old
  62 ___
  63
  64 Issues reported in previous releases which still affect the current results.
  65
  66 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  67 |  # | JiraID                                  | Issue Description                                                                                         |
  68 +====+=========================================+===========================================================================================================+
  69 |  3 | `CSIT-1782                              | Multicore AVF tests are failing when trying to create interface.                                          |
  70 |    | <https://jira.fd.io/browse/CSIT-1782>`_ | Frequency is reduced by CSIT workaround, but occasional failures do still happen.                         |
  71 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  72 |  4 | `CSIT-1671                              | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much   |
  73 |    | <https://jira.fd.io/browse/CSIT-1671>`_ | longer to program VPP). This needs to be addressed on the PAPI side.                                      |
  74 |    +-----------------------------------------+ Currently, the time critical code uses VAT running large files with exec statements and CLI commands.     |
  75 |    | `VPP-1763                               | Still, we needed to reduce the number of scale tests run to keep overall duration reasonable.             |
  76 |    | <https://jira.fd.io/browse/VPP-1763>`_  | More improvements needed to achieve sufficient configuration speed.                                       |
  77 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  78 |  5 | `CSIT-1789                              | IPSEC SW async scheduler tests show bad behavior.                                                         |
  79 |    | <https://jira.fd.io/browse/CSIT-1789>`_ | VPP code is not behaving correctly when crypto workers are the bottleneck.                                |
  80 |    +-----------------------------------------+                                                                                                           |
  81 |    | `VPP-1998                               |                                                                                                           |
  82 |    | <https://jira.fd.io/browse/VPP-1998>`_  |                                                                                                           |
  83 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  84 |  6 | `CSIT-1785                              | NAT44ED tests failing to establish all TCP sessions.                                                      |
  85 |    | <https://jira.fd.io/browse/CSIT-1785>`_ | At least for max scale, in allotted time (limited by session 500s timeout) due to worse                   |
  86 |    +-----------------------------------------+ slow path performance than previously measured and calibrated for.                                        |
  87 |    | `VPP-1972                               | CSIT removed the max scale NAT tests to avoid this issue.                                                 |
  88 |    | <https://jira.fd.io/browse/VPP-1972>`_  |                                                                                                           |
  89 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  90 |  7 | `CSIT-1791                              | Performance regression in RDMA tests, due to CSIT environment changes.                                    |
  91 |    | <https://jira.fd.io/browse/CSIT-1791>`_ | Two symptoms: 1. 10-20% regression across most tests. 2. DUT performance cap just below 38 Mpps.          |
  92 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  93
  94 New
  95 ___
  96
  97 No new issues appeared in |csit-release| for VPP performance tests,
  98 except for the performance changes listed below.
  99
 100 Root Cause Analysis for Performance Changes
 101 -------------------------------------------
 102
 103 List of RCAs in |csit-release| for VPP performance changes:
 104
 105 +----+-----------------------------------------+------------------------------------------------------------+
 106 | #  | JiraID                                  | Issue Description                                          |
 107 +====+=========================================+============================================================+
 108 |  0 |                                         | To be updated when descriptions in Jira tickets are ready. |
 109 +----+-----------------------------------------+------------------------------------------------------------+