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    - **Added new performance testbed 3n-snr** (3 Node SnowRidge, with Intel
  12      Atom processors), to later replace 3n-dnv and 2n-dnv (3 and 2 Node
  13      Denverton) testbeds.
  14
  15    - **Added GTPU HW offload tests** for Intel e810 4p25ge NICs on 2n-icx
  16      testbeds.
  17
  18    - **Added Wireguard tests** for VPP software path (3n-icx, 3n-snr
  19      testbeds) and with built-in HW crypto QAT device (3n-snr testbed
  20      only).
  21
  22    - **Reduction of tests**: Removed certain test variations executed
  23      iteratively for the report (as well as in daily and weekly
  24      trending) due to physical testbeds overload.
  25
  26 #. TEST FRAMEWORK
  27
  28    - **CSIT test environment** version has been updated to ver. 11, see
  29      :ref:`test_environment_versioning`.
  30
  31    - **TCP tput profiles** have to be changed, as newer TRex versions
  32      are not deterministic enough when deciding when to send an ACK.
  33
  34    - **CSIT PAPI support**: Due to issues with PAPI performance, and
  35      deprecation of VAT, VPP CLI is used in CSIT for many VPP scale
  36      tests. See :ref:`vpp_known_issues`.
  37
  38    - **General Code Housekeeping**: Ongoing code optimizations and bug
  39      fixes.
  40
  41 #. PRESENTATION AND ANALYTICS LAYER
  42
  43    - **C-Dash** `performance dashboard <http://csit.fd.io/>`_ got updated UI and
  44      updated backend increasing its performance and robustness.
  45
  46 .. raw:: latex
  47
  48     \clearpage
  49
  50 .. _vpp_known_issues:
  51
  52 Known Issues
  53 ------------
  54
  55 New
  56 ___
  57
  58 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  59 |  # | JiraID                                  | Issue Description                                                                                         |
  60 +====+=========================================+===========================================================================================================+
  61 |  1 | `CSIT-1850                              | 2n-dnv: sporadic 1518B tput tests failing to establish required sessions.                                 |
  62 |    | <https://jira.fd.io/browse/CSIT-1850>`_ |                                                                                                           |
  63 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  64 |  2 | `CSIT-1864                              | 2n-clx: half of the packets lost on PDR tests.                                                            |
  65 |    | <https://jira.fd.io/browse/CSIT-1864>`_ |                                                                                                           |
  66 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  67 |  3 | `CSIT-1871                              | 3n-snr: 25Ge Interface goes down randomly.                                                                |
  68 |    | <https://jira.fd.io/browse/CSIT-1871>`_ |                                                                                                           |
  69 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  70 |  4 | `CSIT-1877                              | 3n-alt, 3n-tsh: VM tests failing to boot VM.                                                              |
  71 |    | <https://jira.fd.io/browse/CSIT-1877>`_ |                                                                                                           |
  72 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  73
  74 Previous
  75 ________
  76
  77 Issues reported in previous releases which still affect the current results.
  78
  79 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  80 |  # | JiraID                                  | Issue Description                                                                                         |
  81 +====+=========================================+===========================================================================================================+
  82 |  1 | `CSIT-1671                              | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much   |
  83 |    | <https://jira.fd.io/browse/CSIT-1671>`_ | longer to program VPP). This needs to be addressed on the PAPI side.                                      |
  84 |    +-----------------------------------------+ Currently, the time critical code uses VAT running large files with exec statements and CLI commands.     |
  85 |    | `VPP-1763                               | Still, we needed to reduce the number of scale tests run to keep overall duration reasonable.             |
  86 |    | <https://jira.fd.io/browse/VPP-1763>`_  | More improvements needed to achieve sufficient configuration speed.                                       |
  87 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  88 |  2 | `CSIT-1782                              | Multicore AVF tests are failing when trying to create interface.                                          |
  89 |    | <https://jira.fd.io/browse/CSIT-1782>`_ | Frequency is reduced by CSIT workaround, but occasional failures do still happen.                         |
  90 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  91 |  3 | `CSIT-1785                              | NAT44ED tests failing to establish all TCP sessions.                                                      |
  92 |    | <https://jira.fd.io/browse/CSIT-1785>`_ | At least for max scale, in allotted time (limited by session 500s timeout) due to worse                   |
  93 |    +-----------------------------------------+ slow path performance than previously measured and calibrated for.                                        |
  94 |    | `VPP-1972                               | CSIT removed the max scale NAT tests to avoid this issue.                                                 |
  95 |    | <https://jira.fd.io/browse/VPP-1972>`_  |                                                                                                           |
  96 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  97 |  4 | `CSIT-1799                              | All NAT44-ED 16M scale tests fail while setting NAT44 address range.                                      |
  98 |    | <https://jira.fd.io/browse/CSIT-1799>`_ |                                                                                                           |
  99 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 100 |  5 | `CSIT-1800                              | All Geneve L3 mode scale tests (1024 tunnels) are failing.                                                |
 101 |    | <https://jira.fd.io/browse/CSIT-1800>`_ |                                                                                                           |
 102 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 103 |  6 | `CSIT-1801                              | 9000B payload frames not forwarded over tunnels due to violating supported Max Frame Size (VxLAN, LISP,   |
 104 |    | <https://jira.fd.io/browse/CSIT-1801>`_ | SRv6).                                                                                                    |
 105 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 106 |  7 | `CSIT-1802                              | AF-XDP - NDR tests failing from time to time.                                                             |
 107 |    | <https://jira.fd.io/browse/CSIT-1802>`_ |                                                                                                           |
 108 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 109 |  8 | `CSIT-1804                              | All testbeds: NDR tests failing from time to time.                                                        |
 110 |    | <https://jira.fd.io/browse/CSIT-1804>`_ |                                                                                                           |
 111 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 112 |  9 | `CSIT-1808                              | All tests with 9000B payload frames not forwarded over memif interfaces.                                  |
 113 |    | <https://jira.fd.io/browse/CSIT-1808>`_ |                                                                                                           |
 114 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 115 | 10 | `CSIT-1827                              | 3n-icx, 3n-skx: all AVF crypto tests sporadically fail. 1518B with no traffic, IMIX with excessive        |
 116 |    | <https://jira.fd.io/browse/CSIT-1827>`_ | packet loss.                                                                                              |
 117 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 118 | 11 | `CSIT-1835                              | 3n-icx: vppecho BPS tests failing on timeout when checking hoststack finished.                            |
 119 |    | <https://jira.fd.io/browse/CSIT-1835>`_ |                                                                                                           |
 120 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 121 | 12 | `CSIT-1849                              | 2n-skx, 2n-clx: UDP 16m tput tests fail to create all sessions.                                           |
 122 |    | <https://jira.fd.io/browse/CSIT-1849>`_ |                                                                                                           |
 123 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 124
 125 Fixed
 126 _____
 127
 128 Issues reported in previous releases which were fixed in this release:
 129
 130 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 131 |  # | JiraID                                  | Issue Description                                                                                         |
 132 +====+=========================================+===========================================================================================================+
 133 |  1 | `CSIT-1834                              | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch.                     |
 134 |    | <https://jira.fd.io/browse/CSIT-1834>`_ |                                                                                                           |
 135 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 136 |  2 | `CSIT-1846                              | 2n-skx, 2n-clx, 2n-icx: ALL 1518B TCP tput tests failing with big packet loss.                            |
 137 |    | <https://jira.fd.io/browse/CSIT-1846>`_ |                                                                                                           |
 138 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 139 |  3 | `CSIT-1851                              | trending regression: various icelake tests around 2202-04-15                                              |
 140 |    | <https://jira.fd.io/browse/CSIT-1851>`_ | Somewhat expected consequence of a VPP usability fix,                                                     |
 141 |    |                                         | the previous VPP compiler version was too new for the OS used.                                            |
 142 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 143
 144 .. _vpp_rca:
 145
 146 Root Cause Analysis for Performance Changes
 147 -------------------------------------------
 148
 149 List of RCAs in |csit-release| for VPP performance changes:
 150
 151 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 152 |  # | JiraID                                  | Issue Description                                                                   |
 153 +====+=========================================+=====================================================================================+
 154 |  1 | `VPP-2030                               | regression: ip6base on ICX around 2022-03-23                                        |
 155 |    | <https://jira.fd.io/browse/VPP-2030>`_  | "Loads blocked due to overlapping with a preceding store that cannot be forwarded." |
 156 |    |                                         | started happening in ip6-lookup graph node.                                         |
 157 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 158 |  2 | `CSIT-1852                              | 2n-zn2 mellanox performance cap                                                     |
 159 |    | <https://jira.fd.io/browse/CSIT-1852>`_ | Old issue, only now distinguished from CSIT-1751.                                   |
 160 |    |                                         | This testbed+nic combination is capped below 28 Mpps, cause not identified yet.     |
 161 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 162 |  3 | `CSIT-1853                              | trending regression: nat44ed cps around 2202-04-01                                  |
 163 |    | <https://jira.fd.io/browse/CSIT-1853>`_ | VPP change added more computation to slow path (in order to support multiple VRFs). |
 164 |    |                                         | Not clear if the VPP implementation is optimized enough.                            |
 165 +----+-----------------------------------------+-------------------------------------------------------------------------------------+