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** using VPP GTPU hardware offload
  16      with Intel e810 4p25ge NICs (3n-icx testbeds only). These tests
  17      were already there in CSIT-2206, but were yielding invalid
  18      results due to using TRex v2.97 that was incompatible with e810
  19      NICs used for those tests.
  20
  21    - **Added Wireguard tests** using VPP software crypto (3n-icx, 3n-snr
  22      testbeds) and using built-in hardware crypto QAT device (3n-snr testbed
  23      only).
  24
  25    - **Reduction of tests**: Removed certain test variations executed
  26      iteratively for the report (as well as in daily and weekly
  27      trending) due to physical testbeds overload.
  28
  29 #. TEST FRAMEWORK
  30
  31    - CSIT-2210 executes all VPP v22.10 performance tests using vpp ubuntu2204
  32      images, due to CSIT execution environment change as noted below. This
  33      applies to all performance testbeds except Denverton. Consequently, VPP
  34      v22.06 has not been re-tested in CSIT-2210 environment, as no ubuntu204
  35      images are available for that VPP version. Performance comparison
  36      between VPP v22.10 (current version) vs VPP v22.06 (previous version)
  37      may be impacted by VPP build environment change (ubuntu2004 to ubuntu
  38      2204) change and CSIT environment change. See :ref:`vpp_rca` for
  39      details.
  40
  41    - **CSIT test environment** version has been updated to ver. 11, see
  42      :ref:`test_environment_versioning`.
  43
  44    - **TCP TPUT profiles** had to be changed, as newer TRex versions
  45      are not deterministic enough when deciding when to send an ACK.
  46
  47    - **CSIT PAPI support**: Due to issues with PAPI performance, and
  48      deprecation of VAT, VPP CLI is used in CSIT for many VPP scale
  49      tests. See :ref:`vpp_known_issues`.
  50
  51    - **General Code Housekeeping**: Ongoing code optimizations and bug
  52      fixes.
  53
  54 #. PRESENTATION AND ANALYTICS LAYER
  55
  56    - **C-Dash** `performance dashboard <http://csit.fd.io/>`_ got updated UI and
  57      updated backend increasing its performance and robustness.
  58
  59 .. raw:: latex
  60
  61     \clearpage
  62
  63 .. _vpp_known_issues:
  64
  65 Known Issues
  66 ------------
  67
  68 New
  69 ___
  70
  71 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  72 |  # | JiraID                                  | Issue Description                                                                                         |
  73 +====+=========================================+===========================================================================================================+
  74 |  1 | `CSIT-1850                              | 2n-dnv: sporadic 1518B tput tests failing to establish required sessions.                                 |
  75 |    | <https://jira.fd.io/browse/CSIT-1850>`_ |                                                                                                           |
  76 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  77 |  2 | `CSIT-1864                              | 2n-clx: half of the packets lost on PDR tests.                                                            |
  78 |    | <https://jira.fd.io/browse/CSIT-1864>`_ |                                                                                                           |
  79 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  80 |  3 | `CSIT-1871                              | 3n-snr: 25Ge Interface goes down randomly.                                                                |
  81 |    | <https://jira.fd.io/browse/CSIT-1871>`_ |                                                                                                           |
  82 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  83 |  4 | `CSIT-1877                              | 3n-alt, 3n-tsh: VM tests failing to boot VM.                                                              |
  84 |    | <https://jira.fd.io/browse/CSIT-1877>`_ |                                                                                                           |
  85 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  86 |  5 | `CSIT-1883                              | 3n-snr: All hwasync wireguard tests failing when trying to verify device.                                 |
  87 |    | <https://jira.fd.io/browse/CSIT-1883>`_ |                                                                                                           |
  88 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  89 |  6 | `CSIT-1884                              | 2n-clx, 2n-icx: All NDR PDR IMIX over 1M sessions BIDIR tests failing to create enough sessions.          |
  90 |    | <https://jira.fd.io/browse/CSIT-1884>`_ |                                                                                                           |
  91 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  92 |  7 | `CSIT-1885                              | 3n-icx: 9000b ip4 NDRPDR AVF tests are failing to forward traffic.                                        |
  93 |    | <https://jira.fd.io/browse/CSIT-1885>`_ |                                                                                                           |
  94 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  95
  96 Previous
  97 ________
  98
  99 Issues reported in previous releases which still affect the current results.
 100
 101 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 102 |  # | JiraID                                  | Issue Description                                                                                         |
 103 +====+=========================================+===========================================================================================================+
 104 |  1 | `CSIT-1671                              | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much   |
 105 |    | <https://jira.fd.io/browse/CSIT-1671>`_ | longer to program VPP). This needs to be addressed on the PAPI side.                                      |
 106 |    +-----------------------------------------+ Currently, the time critical code uses VAT running large files with exec statements and CLI commands.     |
 107 |    | `VPP-1763                               | Still, we needed to reduce the number of scale tests run to keep overall duration reasonable.             |
 108 |    | <https://jira.fd.io/browse/VPP-1763>`_  | More improvements needed to achieve sufficient configuration speed.                                       |
 109 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 110 |  2 | `CSIT-1782                              | Multicore AVF tests are failing when trying to create interface.                                          |
 111 |    | <https://jira.fd.io/browse/CSIT-1782>`_ | Frequency is reduced by CSIT workaround, but occasional failures do still happen.                         |
 112 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 113 |  3 | `CSIT-1785                              | NAT44ED tests failing to establish all TCP sessions.                                                      |
 114 |    | <https://jira.fd.io/browse/CSIT-1785>`_ | At least for max scale, in allotted time (limited by session 500s timeout) due to worse                   |
 115 |    +-----------------------------------------+ slow path performance than previously measured and calibrated for.                                        |
 116 |    | `VPP-1972                               | CSIT removed the max scale NAT tests to avoid this issue.                                                 |
 117 |    | <https://jira.fd.io/browse/VPP-1972>`_  |                                                                                                           |
 118 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 119 |  4 | `CSIT-1799                              | All NAT44-ED 16M sessions CPS scale tests fail while setting NAT44 address range.                         |
 120 |    | <https://jira.fd.io/browse/CSIT-1799>`_ |                                                                                                           |
 121 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 122 |  5 | `CSIT-1800                              | All Geneve L3 mode scale tests (1024 tunnels) are failing.                                                |
 123 |    | <https://jira.fd.io/browse/CSIT-1800>`_ |                                                                                                           |
 124 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 125 |  6 | `CSIT-1801                              | 9000B payload frames not forwarded over tunnels due to violating supported Max Frame Size (VxLAN, LISP,   |
 126 |    | <https://jira.fd.io/browse/CSIT-1801>`_ | SRv6).                                                                                                    |
 127 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 128 |  7 | `CSIT-1802                              | AF-XDP - NDR tests failing from time to time.                                                             |
 129 |    | <https://jira.fd.io/browse/CSIT-1802>`_ |                                                                                                           |
 130 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 131 |  8 | `CSIT-1804                              | All testbeds: NDR tests failing from time to time.                                                        |
 132 |    | <https://jira.fd.io/browse/CSIT-1804>`_ |                                                                                                           |
 133 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 134 |  9 | `CSIT-1808                              | All tests with 9000B payload frames not forwarded over memif interfaces.                                  |
 135 |    | <https://jira.fd.io/browse/CSIT-1808>`_ |                                                                                                           |
 136 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 137 | 10 | `CSIT-1827                              | 3n-icx, 3n-skx: all AVF crypto tests sporadically fail. 1518B with no traffic, IMIX with excessive        |
 138 |    | <https://jira.fd.io/browse/CSIT-1827>`_ | packet loss.                                                                                              |
 139 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 140 | 11 | `CSIT-1835                              | 3n-icx: vppecho BPS tests failing on timeout when checking hoststack finished.                            |
 141 |    | <https://jira.fd.io/browse/CSIT-1835>`_ |                                                                                                           |
 142 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 143 | 12 | `CSIT-1849                              | 2n-skx, 2n-clx, 2n-icx: UDP 16m TPUT tests fail to create all sessions.                                   |
 144 |    | <https://jira.fd.io/browse/CSIT-1849>`_ |                                                                                                           |
 145 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 146
 147 Fixed
 148 _____
 149
 150 Issues reported in previous releases which were fixed in this release:
 151
 152 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 153 |  # | JiraID                                  | Issue Description                                                                                         |
 154 +====+=========================================+===========================================================================================================+
 155 |  1 | `CSIT-1834                              | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch.                     |
 156 |    | <https://jira.fd.io/browse/CSIT-1834>`_ |                                                                                                           |
 157 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 158 |  2 | `CSIT-1846                              | 2n-skx, 2n-clx, 2n-icx: ALL 1518B TCP tput tests failing with big packet loss.                            |
 159 |    | <https://jira.fd.io/browse/CSIT-1846>`_ |                                                                                                           |
 160 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 161 |  3 | `CSIT-1851                              | trending regression: various icelake tests around 2202-04-15                                              |
 162 |    | <https://jira.fd.io/browse/CSIT-1851>`_ | Somewhat expected consequence of a VPP usability fix,                                                     |
 163 |    |                                         | the previous VPP compiler version was too new for the OS used.                                            |
 164 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 165
 166 .. _vpp_rca:
 167
 168 Root Cause Analysis for Performance Changes
 169 -------------------------------------------
 170
 171 List of RCAs in |csit-release| for VPP performance changes:
 172
 173 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 174 |  # | JiraID                                  | Issue Description                                                                   |
 175 +====+=========================================+=====================================================================================+
 176 |  1 | `VPP-2030                               | regression: ip6base on ICX around 2022-03-23                                        |
 177 |    | <https://jira.fd.io/browse/VPP-2030>`_  | "Loads blocked due to overlapping with a preceding store that cannot be forwarded." |
 178 |    |                                         | started happening in ip6-lookup graph node.                                         |
 179 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 180 |  2 | `CSIT-1852                              | 2n-zn2 mellanox performance cap                                                     |
 181 |    | <https://jira.fd.io/browse/CSIT-1852>`_ | Old issue, only now distinguished from CSIT-1751.                                   |
 182 |    |                                         | This testbed+nic combination is capped below 28 Mpps, cause not identified yet.     |
 183 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 184 |  3 | `CSIT-1853                              | trending regression: nat44ed cps around 2202-04-01                                  |
 185 |    | <https://jira.fd.io/browse/CSIT-1853>`_ | VPP change added more computation to slow path (in order to support multiple VRFs). |
 186 |    |                                         | Not clear if the VPP implementation is optimized enough.                            |
 187 +----+-----------------------------------------+-------------------------------------------------------------------------------------+