Report: add geneve to perf release notes
[csit.git] / docs / report / vpp_performance_tests / csit_release_notes.rst
index c21a12e..16a7db3 100644 (file)
-CSIT Release Notes\r
-==================\r
-\r
-Changes in CSIT |release|\r
--------------------------\r
-\r
-#. VPP performance test environment changes\r
-\r
-    - Further optimizations of VM and vhost-user test environment - Qemu virtio\r
-      queue size increased from default value of 256 to 1024.\r
-    - Addition of HW cryptodev devices - Intel QAT 8950 50G - in all three\r
-      LF FD.io physical testbeds.\r
-\r
-#. VPP performance test framework changes\r
-\r
-    - Added VAT command history collection for every test case as part of teardown.\r
-\r
-#. Added VPP performance tests\r
-\r
-    - **CGNAT**\r
-\r
-      - Carrier Grade Network Address Translation tests with varying number\r
-        of users and ports per user: 1u-15p, 10u-15p, 100u-15p, 1000u-15p,\r
-        2000u-15p, 4000u-15p - with Intel x520 NIC.\r
-\r
-    - **vhost-user tests with one VM**\r
-\r
-      - L2 Bridge Domain switched-forwarding with Intel x710 NIC, Intel x520 NIC,\r
-        Intel xl710 NIC.\r
-      - VXLAN and L2 Bridge Domain switched-forwarding with Intel x520 NIC.\r
-\r
-    - **vhost-user tests with two VMs service chain**\r
-\r
-      - L2 cross-connect switched-forwarding with Intel x520 NIC, Intel xl710 NIC.\r
-      - L2 Bridge Domain switched-forwarding with Intel x520 NIC, Intel xl710 NIC.\r
-      - IPv4 routed-forwarding with Intel x520 NIC, Intel xl710 NIC.\r
-\r
-    - **IPSec encryption with**\r
-\r
-      - AES-GCM, CBC-SHA1 ciphers, in combination with IPv4 routed-forwarding\r
-        with Intel xl710 NIC.\r
-      - CBC-SHA1 ciphers, in combination with LISP-GPE overlay tunneling for\r
-        IPv4-over-IPv4 with Intel xl710 NIC.\r
-\r
-Performance Improvements\r
-------------------------\r
-\r
-Substantial improvements in measured packet throughput have been\r
-observed in a number of CSIT |release| tests listed below, with relative\r
-increase  of double-digit percentage points. Relative improvements are\r
-calculated against the test results listed in CSIT rls1701 report.\r
-VPP-16.09 numbers are provided for reference.\r
-\r
-NDR Throughput\r
-~~~~~~~~~~~~~~\r
-\r
-Non-Drop Rate Throughput discovery tests:\r
-\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| VPP Functionality | Test Name                                                       | VPP-16.09  | VPP-17.01 | VPP-17.04 | 17.01 to 17.04  |\r
-|                   |                                                                 | [Mpps]     | [Mpps]    | [Mpps]    | Relative Change |\r
-+===================+=================================================================+============+===========+===========+=================+\r
-| L2XC-vhost-VM     | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc       | 0.5        | 2.8       | 3.4       | 21%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| L2BD-vhost-VM     | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc | 0.4        | 2.7       | 3.1       | 15%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv4 vhost        | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-ndrdisc     | 0.3        | 2.6       | 3.0       | 15%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv4 LISP         | 10ge2p1x520: 64B-1t1c-ethip4lispip4-ip4base-ndrdisc             | 4.4        | 4.8       | 5.5       | 15%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv6              | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-ndrdisc                    | 3.0        | 7.3       | 8.1       | 11%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv6 COP          | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-copwhtlistbase-ndrdisc     | 6.1        | 6.1       | 6.9       | 13%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv6 iAcl         | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-iacldstbase-ndrdisc        | 6.5        | 6.1       | 6.9       | 13%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv6 FIB 2M       | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale2m-ndrdisc                 | 5.3        | 4.2       | 4.6       | 10%             |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-\r
-PDR Throughput\r
-~~~~~~~~~~~~~~\r
-\r
-Partial Drop Rate thoughput discovery tests with packet Loss Tolerance of 0.5%:\r
-\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| VPP Functionality | Test Name                                                       | VPP-16.09 | VPP-17.01 | VPP-17.04 | 17.01 to 17.04  |\r
-|                   |                                                                 | [Mpps]    | [Mpps]    | [Mpps]    | Relative Change |\r
-+===================+=================================================================+===========+===========+===========+=================+\r
-| L2XC-vhost-VM     | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc       | 2.6       | 3.2       | 3.7       | 15%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| L2BD-vhost-VM     | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc | 2.1       | 2.9       | 3.3       | 14%             |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv4 vhost        | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-pdrdisc     | 2.0       | 2.7       | 3.0       | 11%             |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv4 LISP         | 10ge2p1x520: 64B-1t1c-ethip4lispip4-ip4base-pdrdisc             | 4.6       | 4.8       | 5.5       | 15%             |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv6              | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-pdrdisc                    | 7.7       | 7.3       | 8.1       | 11%             |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv6 COP          | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-copwhtlistbase-pdrdisc     | 6.1       | 6.1       | 6.9       | 13%             |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv6 iAcl         | 10ge2p1x520: 78B-1t1c-ethip6-ip6base-iacldstbase-pdrdisc        | 6.5       | 6.1       | 6.9       | 13%             |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv6 FIB 2M       | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale2m-pdrdisc                 | 5.3       | 4.2       | 4.6       | 10%             |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-\r
-Measured improvements are in line with VPP code optimizations listed in\r
-`VPP-17.04 release notes\r
-<https://docs.fd.io/vpp/17.04/release_notes_1704.html>`_.\r
-\r
-Additionally, vhost-VM performance improvements are due to both VPP code\r
-optimizations as well as due to the FD.io CSIT Linux KVM test environment\r
-optimizations for vhost-VM tests - see section "2.1.7. Methodology: KVM VM\r
-vhost".\r
-\r
-\r
-Other Performance Changes\r
--------------------------\r
-\r
-Other changes in measured packet throughput, with either minor relative\r
-increase or decrease, have been observed in a number of CSIT |release|\r
-tests listed below. Relative changes are calculated against the test\r
-results listed in CSIT rls1701 report.\r
-\r
-NDR Throughput\r
-~~~~~~~~~~~~~~\r
-\r
-Non-Drop Rate Throughput discovery tests:\r
-\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| VPP Functionality | Test Name                                                       | VPP-16.09  | VPP-17.01 | VPP-17.04 | 17.01 to 17.04  |\r
-|                   |                                                                 | [Mpps]     | [Mpps]    | [Mpps]    | Relative Change |\r
-+===================+=================================================================+============+===========+===========+=================+\r
-| L2XC              | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-ndrdisc                      | 9.4        | 12.7      | 13.1      | 3%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| L2XC              | 10ge2p1xl710: 64B-1t1c-eth-l2xcbase-ndrdisc                     | 9.5        | 12.2      | 12.4      | 2%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| L2XC dot1ad       | 10ge2p1x520: 64B-1t1c-dot1ad-l2xcbase-ndrdisc                   | 7.4        | 8.8       | 9.3       | 6%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| L2XC dot1q        | 10ge2p1x520: 64B-1t1c-dot1q-l2xcbase-ndrdisc                    | 7.5        | 8.8       | 9.2       | 5%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| L2XC VxLAN        | 10ge2p1x520: 64B-1t1c-ethip4vxlan-l2xcbase-ndrdisc              | 5.4        | 6.5       | 6.8       | 5%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| L2BD              | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-ndrdisc                | 7.8        | 10.4      | 10.8      | 4%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv4              | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ndrdisc                    | 8.7        | 9.7       | 10.6      | 9%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv4 COP          | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-copwhtlistbase-ndrdisc     | 7.1        | 8.3       | 9.0       | 8%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv4 iAcl         | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-iacldstbase-ndrdisc        | 6.9        | 7.6       | 8.3       | 9%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv4 FIB 200k     | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale200k-ndrdisc               | 8.5        | 9.0       | 9.7       | 8%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv4 FIB 20k      | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale20k-ndrdisc                | 8.5        | 9.0       | 9.7       | 8%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv4 FIB 2M       | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale2m-ndrdisc                 | 8.5        | 7.8       | 8.1       | 4%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv4 Policer      | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ipolicemarkbase-ndrdisc    | 6.9        | 7.4       | 8.1       | 9%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv6 FIB 200k     | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale200k-ndrdisc               | 6.5        | 5.3       | 5.3       | 0%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-| IPv6 FIB 20k      | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale20k-ndrdisc                | 6.9        | 6.5       | 6.9       | 6%              |\r
-+-------------------+-----------------------------------------------------------------+------------+-----------+-----------+-----------------+\r
-\r
-PDR Throughput\r
-~~~~~~~~~~~~~~\r
-\r
-Partial Drop Rate thoughput discovery tests with packet Loss Tolerance of 0.5%:\r
-\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| VPP Functionality | Test Name                                                       | VPP-16.09 | VPP-17.01 | VPP-17.04 | 17.01 to 17.04  |\r
-|                   |                                                                 | [Mpps]    | [Mpps]    | [Mpps]    | Relative Change |\r
-+===================+=================================================================+===========+===========+===========+=================+\r
-| L2XC              | 10ge2p1x520: 64B-1t1c-eth-l2xcbase-pdrdisc                      | 9.4       | 12.7      | 13.4      | 6%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| L2XC dot1ad       | 10ge2p1x520: 64B-1t1c-dot1ad-l2xcbase-pdrdisc                   | 7.4       | 8.8       | 9.3       | 6%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| L2XC dot1q        | 10ge2p1x520: 64B-1t1c-dot1q-l2xcbase-pdrdisc                    | 7.5       | 8.8       | 9.2       | 5%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| L2XC VxLAN        | 10ge2p1x520: 64B-1t1c-ethip4vxlan-l2xcbase-pdrdisc              | 5.4       | 6.5       | 6.8       | 5%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| L2BD              | 10ge2p1x520: 64B-1t1c-eth-l2bdbasemaclrn-pdrdisc                | 7.8       | 10.6      | 10.8      | 2%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv4              | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-pdrdisc                    | 8.7       | 9.7       | 10.6      | 9%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv4 COP          | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-copwhtlistbase-pdrdisc     | 7.1       | 8.3       | 9.2       | 11%             |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv4 iAcl         | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-iacldstbase-pdrdisc        | 7.1       | 7.6       | 8.3       | 9%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv4 FIB 200k     | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale200k-pdrdisc               | 8.5       | 9.0       | 9.7       | 8%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv4 FIB 20k      | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale20k-pdrdisc                | 8.5       | 9.0       | 9.7       | 8%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv4 FIB 2M       | 10ge2p1x520: 64B-1t1c-ethip4-ip4scale2m-pdrdisc                 | 8.3       | 8.1       | 8.1       | 0%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv4 Policer      | 10ge2p1x520: 64B-1t1c-ethip4-ip4base-ipolicemarkbase-pdrdisc    | 7.1       | 7.4       | 8.1       | 9%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv6 FIB 200k     | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale200k-pdrdisc               | 6.9       | 5.3       | 5.3       | 0%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-| IPv6 FIB 20k      | 10ge2p1x520: 78B-1t1c-ethip6-ip6scale20k-pdrdisc                | 6.9       | 6.5       | 6.9       | 6%              |\r
-+-------------------+-----------------------------------------------------------------+-----------+-----------+-----------+-----------------+\r
-\r
-Known Issues\r
-------------\r
-\r
-Here is the list of known issues in CSIT |release| for VPP performance tests:\r
-\r
-+---+-------------------------------------------------+------------+-----------------------------------------------------------------+\r
-| # | Issue                                           | Jira ID    | Description                                                     |\r
-+---+-------------------------------------------------+------------+-----------------------------------------------------------------+\r
-| 1 | NDR discovery test failures 1518B frame size    | VPP-663    | VPP reporting errors: dpdk-input Rx ip checksum errors.         |\r
-|   | for ip4scale200k, ip4scale2m scale IPv4 routed- |            | Observed frequency: all test runs.                              |\r
-|   | forwarding tests. ip4scale20k tests are fine.   |            |                                                                 |\r
-+---+-------------------------------------------------+------------+-----------------------------------------------------------------+\r
-| 2 | Sporadic VAT API timeouts during ip6scale2m     | VPP-712    | Needs fixing VPP VAT API timeouts for large volume of IPv6      |\r
-|   | scale IPv6  routed-forwarding tests when volume |            | routes.                                                         |\r
-|   | adding IPv6 routes - 2M in this case.           |            |                                                                 |\r
-|   | ip6scale200k works.                             |            |                                                                 |\r
-+---+-------------------------------------------------+------------+-----------------------------------------------------------------+\r
-| 3 | Vic1385 and Vic1227 low performance.            | VPP-664    | Low NDR performance.                                            |\r
-|   |                                                 |            |                                                                 |\r
-+---+-------------------------------------------------+------------+-----------------------------------------------------------------+\r
-| 4 | Sporadic NDR discovery test failures on x520.   | CSIT-750   | Suspected issue with HW settings (BIOS, FW) in LF               |\r
-|   |                                                 |            | infrastructure. Issue can't be replicated outside LF.           |\r
-+---+-------------------------------------------------+------------+-----------------------------------------------------------------+\r
-| 5 | VPP in 2t2c setups - large variation            | CSIT-568   | Suspected NIC firmware or DPDK driver issue affecting NDR       |\r
-|   | of discovered NDR throughput values across      |            | throughput. Applies to XL710 and X710 NICs, x520 NICs are fine. |\r
-|   | multiple test runs with xl710 and x710 NICs.    |            |                                                                 |\r
-+---+-------------------------------------------------+------------+-----------------------------------------------------------------+\r
-| 6 | Lower than expected NDR and PDR throughput with | CSIT-569   | Suspected NIC firmware or DPDK driver issue affecting NDR and   |\r
-|   | xl710 and x710 NICs, compared to x520 NICs.     |            | PDR throughput. Applies to XL710 and X710 NICs.                 |\r
-+---+-------------------------------------------------+------------+-----------------------------------------------------------------+\r
-\r
+Release Notes
+=============
+
+Changes in |csit-release|
+-------------------------
+
+#. VPP PERFORMANCE TESTS
+
+   - CSIT test environment is versioned, see
+     :ref:`test_environment_versioning`.
+
+   - To identify performance changes due to VPP code changes from
+     v20.05.0 to v20.09.0, both have been tested in CSIT environment
+     ver. 5 and compared against each other. All substantial
+     progressions has been marked up with RCA analysis. See
+     :ref:`vpp_compare_current_vs_previous_release` and
+     :ref:`vpp_known_issues`.
+
+   - **GENEVE tests**: Added VPP performance tests for GENEVE tunnels.
+
+     - See :ref:`geneve_methodology` for more details.
+
+   - **NAT44 tests**: Adapted existing and added new tests.
+
+     - Refactored NAT44 deterministic mode (nat44det) tests to use separate
+       det44 vpp plugin and to use the same scheme of inside and outside
+       addresses and ports, as used in new NAT44 endpoint-dependent mode tests.
+
+     - Added new NAT44 endpoint-depended mode uni-directional (nat44ed-udir)
+       tests that measure packet throughput in one direction with usage of TRex
+       in stateless mode.
+
+     - Added new NAT44 endpoint-dependent mode CPS tests that measure
+       connections per second with usage of TRex in stateful mode.
+       UPD packet size is 64 bytes. Size of TCP control packets
+       is not configurable, please ignore the -64b- part of test names.
+
+     - Added new NAT44 endpoint-dependent mode PPS tests that measure
+       packets per second (control and data together) with usage of TRex
+       in stateful mode. UPD packet size is 64 bytes. Size of TCP
+       data packets is governed by the default MSS value, so most data packets
+       are 1460 bytes long, please ignore the -64b- part of test names.
+
+     - See :ref:`nat44_methodology` for more details.
+
+   - **IPSec async mode tests**: Added VPP performance tests for async crypto
+     engine.
+
+   - **AMD 2n-zn2 testbed**: New physical testbed type installed in
+     FD.io CSIT, with VPP and DPDK performance data added to CSIT
+     trending and this report.
+
+   - **AMD 2n-tx2 testbed**: New physical testbed type installed in
+     FD.io CSIT, with VPP and DPDK performance data added to CSIT
+     trending and this report.
+
+#. TEST FRAMEWORK
+
+   - **TRex ASTF**: Added capability to run TRex in advanced stateful mode.
+
+   - **CSIT PAPI support**: Due to issues with PAPI performance, VAT is
+     still used in CSIT for all VPP scale tests. See known issues below.
+
+   - **General Code Housekeeping**: Ongoing RF keywords optimizations,
+     removal of redundant RF keywords and aligning of suite/test
+     setup/teardowns.
+
+   - **Intel E810CQ 100G NIC**: Added configuration for Intel E810CQ 100G NIC.
+     No tests run for this NIC as it is not present in FD.io CSIT lab yet.
+
+#. PRESENTATION AND ANALYTICS LAYER
+
+   - **Graphs improvements**: Added possibility to use Gbps on Y-axis in
+     Packet Throughput and Speedup Multi-Core graphs, added unidirectional
+     mode to the Latency graphs.
+
+.. raw:: latex
+
+    \clearpage
+
+.. _vpp_known_issues:
+
+Known Issues
+------------
+
+List of known issues in |csit-release| for VPP performance tests:
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| #  | JiraID                                  | Issue Description                                                                                         |
++====+=========================================+===========================================================================================================+
+|  1 | `CSIT-570                               | Sporadic (1 in 200) NDR discovery test failures on x520. DPDK reporting rx-errors, indicating L1 issue.   |
+|    | <https://jira.fd.io/browse/CSIT-570>`_  | Suspected issue with HW combination of X710-X520 in LF testbeds. Not observed outside of LF testbeds.     |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+|  2 | `VPP-662                                | 9000B packets not supported by NICs VIC1227 and VIC1387.                                                  |
+|    | <https://jira.fd.io/browse/VPP-662>`_   |                                                                                                           |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+|  3 | `CSIT-1763                              | Adapt ramp-up phase of nat44 tests for different frame sizes.                                             |
+|    | <https://jira.fd.io/browse/CSIT-1763>`_ | Currently ramp-up phase rate and duration values are correctly set for tests with 64B frame size.         |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+|  4 | `CSIT-1671                              | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much   |
+|    | <https://jira.fd.io/browse/CSIT-1671>`_ | longer to program VPP). This needs to be addressed on the PAPI side.                                      |
+|    +-----------------------------------------+ The usual PAPI library spends too much time parsing arguments, so even with async processing (hundreds of |
+|    | `VPP-1763                               | commands in flight over socket), the VPP configuration for large scale tests (millions of messages) takes |
+|    | <https://jira.fd.io/browse/VPP-1763>`_  | too long.                                                                                                 |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+|  5 | `CSIT-1771                              | IPv4 IPSEC 9000B packet tests had been failing when chained buffers were not supported.                   |
+|    | <https://jira.fd.io/browse/CSIT-1771>`_ | This has been fixed on VPP side, but CSIT still needs to re-enable jumbo tests.                           |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+|  6 | `VPP-1934                               | [i40e] Interfaces are not brought up from carrier-down.                                                   |
+|    | <https://jira.fd.io/browse/VPP-1934>`_  | In case of i40e -based interface (e.g Intel x700 series NIC) is bound to kernel driver (i40e) and is in   |
+|    |                                         | state "no-carrier" (<NO-CARRIER,BROADCAST,MULTICAST,UP>) because previously it was disabled via           |
+|    |                                         | "I40E_AQ_PHY_LINK_ENABLED" call, then VPP during initialization of AVF interface is not re-enabling       |
+|    |                                         | interface link via i40e driver to up.                                                                     |
+|    |                                         | CSIT implemented `workaround for AVF interface <https://gerrit.fd.io/r/c/csit/+/29086>`_ until fixed.     |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+|  7 | `CSIT-1760                              | All Mellanox / rdma driver tests are failing on LF testbed28 while successfully run on other LF testbeds. |
+|    | <https://jira.fd.io/browse/CSIT-1760>`_ |                                                                                                           |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+Root Cause Analysis for Performance Changes
+-------------------------------------------
+
+List of RCAs in |csit-release| for VPP performance changes:
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| #  | JiraID                                  | Issue Description                                                                                         |
++====+=========================================+===========================================================================================================+
+|  1 |                                         |                                                                                                           |
+|    |                                         |                                                                                                           |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+