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    - **Reduction of tests**: Removed certain test variations executed
  12      iteratively for the report (as well as in daily and weekly
  13      trending) due to physical testbeds overload.
  14
  15 #. TEST FRAMEWORK
  16
  17    - **Removed ASTF PPS tests**: They provide no real benefit
  18      compared to TPUT tests. The ip4base variants renamed to TPUT.
  19
  20    - **Changed TCP TPUT profiles**: The previous ones were found to be faulty.
  21      The new ones do not use bursts of packets to avoid CSIT-1830 and CSIT-1846.
  22
  23    - **CSIT test environment** version has been updated to ver. 10, see
  24      :ref:`test_environment_versioning`.
  25
  26    - **CSIT PAPI support**: Due to issues with PAPI performance, and
  27      deprecation of VAT, VPP CLI is used in CSIT for many VPP scale
  28      tests. See :ref:`vpp_known_issues`.
  29
  30    - **General Code Housekeeping**: Ongoing code optimizations and bug
  31      fixes.
  32
  33 #. PRESENTATION AND ANALYTICS LAYER
  34
  35    - **Graphs improvements**: Updated Packet Latency graphs,
  36      see :ref:`latency_methodology`.
  37
  38 .. raw:: latex
  39
  40     \clearpage
  41
  42 .. _vpp_known_issues:
  43
  44 Known Issues
  45 ------------
  46
  47 New
  48 ___
  49
  50 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  51 |  # | JiraID                                  | Issue Description                                                                                         |
  52 +====+=========================================+===========================================================================================================+
  53 |  1 | `CSIT-1827                              | 3n-icx, 3n-skx: all AVF crypto tests sporadically fail. 1518B with no traffic, IMIX with excessive        |
  54 |    | <https://jira.fd.io/browse/CSIT-1827>`_ | packet loss.                                                                                              |
  55 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  56 |  2 | `CSIT-1830                              | All testbeds: All TCP tput (and pps) tests are failing for small packets.                                 |
  57 |    | <https://jira.fd.io/browse/CSIT-1830>`_ |                                                                                                           |
  58 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  59 |  3 | `CSIT-1832                              | 3n-alt: NDR 1 packet lost on random tests.                                                                |
  60 |    | <https://jira.fd.io/browse/CSIT-1832>`_ |                                                                                                           |
  61 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  62 |  4 | `CSIT-1834                              | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch.                     |
  63 |    | <https://jira.fd.io/browse/CSIT-1834>`_ |                                                                                                           |
  64 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  65 |  5 | `CSIT-1846                              | 2n-skx, 2n-clx, 2n-icx: ALL 1518B TCP tput tests failing with big packet loss.                            |
  66 |    | <https://jira.fd.io/browse/CSIT-1846>`_ |                                                                                                           |
  67 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  68 |  6 | `CSIT-1847                              | 2n-skx: all 10vm-1t test failed with half of packets dropped.                                             |
  69 |    | <https://jira.fd.io/browse/CSIT-1847>`_ |                                                                                                           |
  70 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  71 |  7 | `CSIT-1849                              | 2n-skx: UDP 16m tput tests fail to create all sessions.                                                   |
  72 |    | <https://jira.fd.io/browse/CSIT-1849>`_ |                                                                                                           |
  73 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  74
  75 Previous
  76 ________
  77
  78 Issues reported in previous releases which still affect the current results.
  79
  80 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  81 |  # | JiraID                                  | Issue Description                                                                                         |
  82 +====+=========================================+===========================================================================================================+
  83 |  1 | `CSIT-1799                              | All NAT44-ED 16M scale tests fail while setting NAT44 address range.                                      |
  84 |    | <https://jira.fd.io/browse/CSIT-1799>`_ |                                                                                                           |
  85 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  86 |  2 | `CSIT-1800                              | All Geneve L3 mode scale tests (1024 tunnels) are failing.                                                |
  87 |    | <https://jira.fd.io/browse/CSIT-1800>`_ |                                                                                                           |
  88 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  89 |  3 | `CSIT-1802                              | AF-XDP - NDR tests failing from time to time.                                                             |
  90 |    | <https://jira.fd.io/browse/CSIT-1802>`_ |                                                                                                           |
  91 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  92 |  4 | `CSIT-1803                              | 3n-icx testbeds (Icelake): all IMIX aes128cbc-hmac512sha tests are failing due to excessive packet loss.  |
  93 |    | <https://jira.fd.io/browse/CSIT-1803>`_ |                                                                                                           |
  94 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  95 |  5 | `CSIT-1804                              | 3n-tsh, 3n-alt testbed (Taishan, Altra): NDR tests failing from time to time.                             |
  96 |    | <https://jira.fd.io/browse/CSIT-1804>`_ |                                                                                                           |
  97 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
  98 |  6 | `CSIT-1812                              | All IMIX NAT44DET 4m 16m scale tests fail due to not creating required session count.                     |
  99 |    | <https://jira.fd.io/browse/CSIT-1812>`_ |                                                                                                           |
 100 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 101 |  7 | `CSIT-1782                              | Multicore AVF tests are failing when trying to create interface.                                          |
 102 |    | <https://jira.fd.io/browse/CSIT-1782>`_ | Frequency is reduced by CSIT workaround, but occasional failures do still happen.                         |
 103 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 104 |  8 | `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 |  9 | `CSIT-1785                              | NAT44ED tests failing to establish all TCP sessions.                                                      |
 111 |    | <https://jira.fd.io/browse/CSIT-1785>`_ | At least for max scale, in allotted time (limited by session 500s timeout) due to worse                   |
 112 |    +-----------------------------------------+ slow path performance than previously measured and calibrated for.                                        |
 113 |    | `VPP-1972                               | CSIT removed the max scale NAT tests to avoid this issue.                                                 |
 114 |    | <https://jira.fd.io/browse/VPP-1972>`_  |                                                                                                           |
 115 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 116 | 10 | `CSIT-1801                              | 9000B payload frames not forwarded over tunnels due to violating supported Max Frame Size (VxLAN, LISP,   |
 117 |    | <https://jira.fd.io/browse/CSIT-1801>`_ | SRv6).                                                                                                    |
 118 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 119 | 11 | `CSIT-1808                              | All tests with 9000B payload frames not forwarded over memif interfaces.                                  |
 120 |    | <https://jira.fd.io/browse/CSIT-1808>`_ |                                                                                                           |
 121 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 122 | 12 | `CSIT-1809                              | All tests with 9000B payload frames not forwarded over vhostuser interfaces.                              |
 123 |    | <https://jira.fd.io/browse/CSIT-1809>`_ |                                                                                                           |
 124 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 125
 126 Fixed
 127 _____
 128
 129 Issues reported in previous releases which were fixed in this release:
 130
 131 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 132 |  # | JiraID                                  | Issue Description                                                                                         |
 133 +====+=========================================+===========================================================================================================+
 134 |  1 | `CSIT-1810                              | DPDK - performance regression with DPDK driver when Max Frame Size is set to less than 2023.              |
 135 |    | <https://jira.fd.io/browse/CSIT-1810>`_ |                                                                                                           |
 136 |    +-----------------------------------------+                                                                                                           |
 137 |    | `VPP-1876                               | Worse performance with DPDK driver when MTU is set to 2022 or less.                                       |
 138 |    | <https://jira.fd.io/browse/VPP-1876>`_  |                                                                                                           |
 139 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 140 |  2 | `CSIT-1811                              | All 9000B NAT44DET 64k 1m scale tests fail due to bps rate set to high on TRex.                           |
 141 |    | <https://jira.fd.io/browse/CSIT-1811>`_ |                                                                                                           |
 142 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 143 |  3 | `CSIT-1791                              | Performance regression in RDMA tests, due to CSIT environment changes.                                    |
 144 |    | <https://jira.fd.io/browse/CSIT-1791>`_ | Two symptoms: 1. 10-20% regression across most tests. 2. DUT performance cap just below 38 Mpps.          |
 145 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 146
 147 .. _vpp_rca:
 148
 149 Root Cause Analysis for Performance Changes
 150 -------------------------------------------
 151
 152 List of RCAs in |csit-release| for VPP performance changes:
 153
 154 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 155 |  # | JiraID                                  | Issue Description                                                                   |
 156 +====+=========================================+=====================================================================================+
 157 |  1 | `CSIT-1851                              | trending regression: various icelake tests around 2202-04-15                        |
 158 |    | <https://jira.fd.io/browse/CSIT-1851>`_ | Somewhat expected consequence of a VPP usability fix,                               |
 159 |    |                                         | the previous VPP compiler version was too new for the OS used.                      |
 160 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 161 |  2 | `VPP-2030                               | regression: ip6base on ICX around 2022-03-23                                        |
 162 |    | <https://jira.fd.io/browse/VPP-2030>`_  | "Loads blocked due to overlapping with a preceding store that cannot be forwarded." |
 163 |    |                                         | started happening in ip6-lookup graph node.                                         |
 164 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 165 |  3 | `CSIT-1852                              | 2n-zn2 mellanox performance cap                                                     |
 166 |    | <https://jira.fd.io/browse/CSIT-1852>`_ | Old issue, only now distinguished from CSIT-1751.                                   |
 167 |    |                                         | This testbed+nic combination is capped below 28 Mpps, cause not identified yet.     |
 168 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
 169 |  4 | `CSIT-1853                              | trending regression: nat44ed cps around 2202-04-01                                  |
 170 |    | <https://jira.fd.io/browse/CSIT-1853>`_ | VPP change added more computation to slow path (in order to support multiple VRFs). |
 171 |    |                                         | Not clear if the VPP implementation is optimized enough.                            |
 172 +----+-----------------------------------------+-------------------------------------------------------------------------------------+