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 |    |                                         |                                                                                                           |
  62 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  63
  64 Previous
  65 ________
  66
  67 Issues reported in previous releases which still affect the current results.
  68
  69 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  70 |  # | JiraID                                  | Issue Description                                                                                         |
  71 +====+=========================================+===========================================================================================================+
  72 |  1 | `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 |  2 | `CSIT-1782                              | Multicore AVF tests are failing when trying to create interface.                                          |
  79 |    | <https://jira.fd.io/browse/CSIT-1782>`_ | Frequency is reduced by CSIT workaround, but occasional failures do still happen.                         |
  80 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  81 |  3 | `CSIT-1785                              | NAT44ED tests failing to establish all TCP sessions.                                                      |
  82 |    | <https://jira.fd.io/browse/CSIT-1785>`_ | At least for max scale, in allotted time (limited by session 500s timeout) due to worse                   |
  83 |    +-----------------------------------------+ slow path performance than previously measured and calibrated for.                                        |
  84 |    | `VPP-1972                               | CSIT removed the max scale NAT tests to avoid this issue.                                                 |
  85 |    | <https://jira.fd.io/browse/VPP-1972>`_  |                                                                                                           |
  86 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  87 |  4 | `CSIT-1799                              | All NAT44-ED 16M scale tests fail while setting NAT44 address range.                                      |
  88 |    | <https://jira.fd.io/browse/CSIT-1799>`_ |                                                                                                           |
  89 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  90 |  5 | `CSIT-1800                              | All Geneve L3 mode scale tests (1024 tunnels) are failing.                                                |
  91 |    | <https://jira.fd.io/browse/CSIT-1800>`_ |                                                                                                           |
  92 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  93 |  6 | `CSIT-1801                              | 9000B payload frames not forwarded over tunnels due to violating supported Max Frame Size (VxLAN, LISP,   |
  94 |    | <https://jira.fd.io/browse/CSIT-1801>`_ | SRv6).                                                                                                    |
  95 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  96 |  7 | `CSIT-1802                              | AF-XDP - NDR tests failing from time to time.                                                             |
  97 |    | <https://jira.fd.io/browse/CSIT-1802>`_ |                                                                                                           |
  98 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  99 |  8 | `CSIT-1803                              | 3n-icx testbeds (Icelake): all IMIX aes128cbc-hmac512sha tests are failing due to excessive packet loss.  |
 100 |    | <https://jira.fd.io/browse/CSIT-1803>`_ |                                                                                                           |
 101 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 102 |  9 | `CSIT-1804                              | 3n-tsh, 3n-alt testbed (Taishan, Altra): NDR tests failing from time to time.                             |
 103 |    | <https://jira.fd.io/browse/CSIT-1804>`_ |                                                                                                           |
 104 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 105 | 10 | `CSIT-1808                              | All tests with 9000B payload frames not forwarded over memif interfaces.                                  |
 106 |    | <https://jira.fd.io/browse/CSIT-1808>`_ |                                                                                                           |
 107 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 108 | 11 | `CSIT-1809                              | All tests with 9000B payload frames not forwarded over vhostuser interfaces.                              |
 109 |    | <https://jira.fd.io/browse/CSIT-1809>`_ |                                                                                                           |
 110 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 111 | 12 | `CSIT-1812                              | All IMIX NAT44DET 4m 16m scale tests fail due to not creating required session count.                     |
 112 |    | <https://jira.fd.io/browse/CSIT-1812>`_ |                                                                                                           |
 113 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 114 | 13 | `CSIT-1827                              | 3n-icx, 3n-skx: all AVF crypto tests sporadically fail. 1518B with no traffic, IMIX with excessive        |
 115 |    | <https://jira.fd.io/browse/CSIT-1827>`_ | packet loss.                                                                                              |
 116 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 117 | 14 | `CSIT-1830                              | All testbeds: All TCP tput (and pps) tests are failing for small packets.                                 |
 118 |    | <https://jira.fd.io/browse/CSIT-1830>`_ |                                                                                                           |
 119 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 120 | 15 | `CSIT-1832                              | 3n-alt: NDR 1 packet lost on random tests.                                                                |
 121 |    | <https://jira.fd.io/browse/CSIT-1832>`_ |                                                                                                           |
 122 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 123 | 16 | `CSIT-1834                              | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch.                     |
 124 |    | <https://jira.fd.io/browse/CSIT-1834>`_ |                                                                                                           |
 125 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 126 | 17 | `CSIT-1847                              | 2n-skx: all 10vm-1t test failed with half of packets dropped.                                             |
 127 |    | <https://jira.fd.io/browse/CSIT-1847>`_ |                                                                                                           |
 128 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 129 | 18 | `CSIT-1849                              | 2n-skx: UDP 16m tput tests fail to create all sessions.                                                   |
 130 |    | <https://jira.fd.io/browse/CSIT-1849>`_ |                                                                                                           |
 131 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 132
 133 Fixed
 134 _____
 135
 136 Issues reported in previous releases which were fixed in this release:
 137
 138 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 139 |  # | JiraID                                  | Issue Description                                                                                         |
 140 +====+=========================================+===========================================================================================================+
 141 | 16 | `CSIT-1834                              | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch.                     |
 142 |    | <https://jira.fd.io/browse/CSIT-1834>`_ |                                                                                                           |
 143 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 144 |  1 | `CSIT-1846                              | 2n-skx, 2n-clx, 2n-icx: ALL 1518B TCP tput tests failing with big packet loss.                            |
 145 |    | <https://jira.fd.io/browse/CSIT-1846>`_ |                                                                                                           |
 146 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 147 |  2 | `CSIT-1851                              | trending regression: various icelake tests around 2202-04-15                                              |
 148 |    | <https://jira.fd.io/browse/CSIT-1851>`_ | Somewhat expected consequence of a VPP usability fix,                                                     |
 149 |    |                                         | the previous VPP compiler version was too new for the OS used.                                            |
 150 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 151
 152 .. _vpp_rca:
 153
 154 Root Cause Analysis for Performance Changes
 155 -------------------------------------------
 156
 157 List of RCAs in |csit-release| for VPP performance changes:
 158
 159 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 160 |  # | JiraID                                  | Issue Description                                                                   |
 161 +====+=========================================+=====================================================================================+
 162 |  1 | `VPP-2030                               | regression: ip6base on ICX around 2022-03-23                                        |
 163 |    | <https://jira.fd.io/browse/VPP-2030>`_  | "Loads blocked due to overlapping with a preceding store that cannot be forwarded." |
 164 |    |                                         | started happening in ip6-lookup graph node.                                         |
 165 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 166 |  2 | `CSIT-1852                              | 2n-zn2 mellanox performance cap                                                     |
 167 |    | <https://jira.fd.io/browse/CSIT-1852>`_ | Old issue, only now distinguished from CSIT-1751.                                   |
 168 |    |                                         | This testbed+nic combination is capped below 28 Mpps, cause not identified yet.     |
 169 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 170 |  3 | `CSIT-1853                              | trending regression: nat44ed cps around 2202-04-01                                  |
 171 |    | <https://jira.fd.io/browse/CSIT-1853>`_ | VPP change added more computation to slow path (in order to support multiple VRFs). |
 172 |    |                                         | Not clear if the VPP implementation is optimized enough.                            |
 173 +----+-----------------------------------------+-------------------------------------------------------------------------------------+