-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
+.. _vpp_performance_tests_release_notes:
+
+Release Notes
+=============
+
+Changes in |csit-release|
+-------------------------
+
+#. VPP PERFORMANCE TESTS
+
+ - **AF_XDP**: Added af_xdp driver support for all test cases. Test
+ results will be added in sub-sequent CSIT-2106 report.
+
+ - **GTPU tunnel**: Added GTPU HW Offload IPv4 routing tests.
+
+ - **Intel Xeon Ice Lake**: Added initial test data for these
+ platforms. Current CSIT-2106 report data for Intel Xeon Ice Lake
+ comes from an external source (Intel labs running CSIT code on
+ "8360Y D Stepping" and "6338N" processors). For details about the
+ physical setup see :ref:`tested_physical_topologies`. Tested
+ VPP and CSIT versions are pre-release, VPP
+ 21.06-rc0~779-gd640ae52f.
+
+ - **MLRsearch improvements**: Added support for multiple packet
+ throughput rates in a single search, each rate is associated
+ with a distinct Packet Loss Ratio (PLR) criterion. Previously
+ only Non Drop Rate (NDR) (PLR=0) and single Partial Drop Rate
+ (PDR) (PLR<0.5%) were supported. Implemented number of
+ optimizations improving rate discovery efficiency.
+
+ - **Reduction of tests**: Removed obsolete VPP use cases and
+ superfluous test combinations from continuous and report test
+ executions, including:
+
+ - All vts tests, obsolete use cases.
+ - dot1q tests apart from dot1q-l2bd, superfluous combinations.
+ - -100flows, -100kflows in all acl tests.
+ - nat44 tests
+
+ - -pps tests, replaced by -tput tests.
+ - h1-p1-s1 single session tests, unessential combination.
+ - h4096-p63-s258048 tests, unessential scale combination.
+
+ - ipsec tests
+
+ - ethip4ipsectptlispgpe.
+ - policy-aes128gcm.
+ - policy-aes128cbc-hmac256sha.
+ - policy-aes128cbc-hmac512sha.
+ - int-aes128cbc-hmac256sha.
+ - scale of
+
+ - 400tnlsw.
+ - 5000tnlsw.
+ - 20000tnlsw.
+ - 60000tnlsw.
+
+#. TEST FRAMEWORK
+
+ - **Telemetry retouch**: Refactored telemetry retrieval from DUTs and
+ SUTs. Included VPP perfmon plugin telemetry with all perfmon
+ bundles available in VPP release.
+
+ - **Upgrade to Ubuntu 20.04 LTS**: Re-installed base operating system
+ to Ubuntu 20.04.2 LTS. Upgrade included also baseline Docker
+ containers used for spawning topology.
+
+ - **TRex upgrade v2.86 to v2.88**: Included move to DPDK 21.02 and
+ changed the way egress low latency queues are used in FVL NICs.
+ This broke latency measurements for majority of FVL NICs in
+ CSIT. Latency values look better after upgrading FVL FW on TRex
+ servers, but still somewhat higher than before the TRex upgrade.
+ Tracked by `CSIT-1790 <https://jira.fd.io/browse/CSIT-1790>`_.
+
+ - **CSIT test environment** version has been updated to ver. 7, see
+ :ref:`test_environment_versioning`.
+
+ - **CSIT in AWS environment**: Added CSIT support for AWS c5n
+ instances environment. Test results will be added in sub-sequent
+ CSIT-2106 report.
+
+ - **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 code optimizations and bug
+ fixes.
+
+#. PRESENTATION AND ANALYTICS LAYER
+
+ - **Graphs improvements**: Updated Packet Latency graphs,
+ see :ref:`latency_methodology`.
+
+.. raw:: latex
+
+ \clearpage
+
+.. _vpp_known_issues:
+
+Known Issues
+------------
+
+List of known issues in |csit-release| for VPP performance tests:
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1782 | Multicore AVF tests are failing when trying to create interface. |
+| | <https://jira.fd.io/browse/CSIT-1782>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 2 | `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. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 3 | `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. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 4 | `CSIT-1789 | AVF driver does not perform RSS in a deterministic way. |
+| | <https://jira.fd.io/browse/CSIT-1789>`_ | This increases standard deviation of tests with small number of flows (mainly ipsec). |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 5 | `CSIT-1790 | Broken TRex latency measurements with TRex v2.88, DPDK 21.02 and FVL FW 6.01. |
+| | <https://jira.fd.io/browse/CSIT-1790>`_ | High latency O(5msec) for all VPP and testpmd/l3fwd test cases for FVL NICs with FW 6.01. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 6 | `CSIT-1780 | IPSEC SW async scheduler MRR tests failing with no traffic forwarded. |
+| | <https://jira.fd.io/browse/CSIT-1780>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 7 | `CSIT-1786 | IP4 and IP6 scale tests failing with no traffic forwarded. |
+| | <https://jira.fd.io/browse/CSIT-1786>`_ | Issue reported to VPP devs. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 8 | `CSIT-1785 | NAT44ED tests failing to establish all TCP sessions. |
+| | <https://jira.fd.io/browse/CSIT-1785>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 9 | `CSIT-1791 | Performance regression in RDMA tests, due to CSIT environment changes. |
+| | <https://jira.fd.io/browse/CSIT-1791>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+Root Cause Analysis for Performance Changes
+-------------------------------------------
+
+List of RCAs in |csit-release| for VPP performance changes:
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `VPP-1972 | One VPP change has decreased performance of NAT44ed processing, mostly slow path. |
+| | <https://jira.fd.io/browse/VPP-1972>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+