-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\r
- 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\r
- NIC, 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\r
- NIC.\r
- - L2 Bridge Domain switched-forwarding with Intel x520 NIC, Intel xl710\r
- 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 |release-1| 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 |release-1| 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 | Vic1385 and Vic1227 low performance. | VPP-664 | Low NDR performance. |\r
-| | | | |\r
-+---+-------------------------------------------------+------------+-----------------------------------------------------------------+\r
-| 3 | 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
-| 4 | 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
-| 5 | 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
+
+ - **Intel Xeon 2n-skx, 3n-skx testbeds**: VPP performance test data
+ is now included in this report version. Due to substantial impact
+ of test environment changes (applied during the CSIT-2001
+ development cycle) on the performance of VPP software, a new
+ approach to performance comparison and progression/regression
+ root cause analysis (RCA) has been applied.
+
+ - CSIT test environment is now versioned, with ver. 1 associated
+ with CSIT rls1908 git branch as of 2019-08-21, and ver. 2
+ associated with CSIT rls2001 git branch as of 2020-03-27.
+
+ - To identify performance changes due to CSIT test environment
+ changes from ver. 1 to ver. 2, VPP v19.08.1 has been re-tested in
+ ver. 2 and compared against the past results obtained with
+ testing in ver. 1. Separate RCA1 analysis has been applied to
+ this part. See :ref:`vpp_compare_current_vs_previous_release` and
+ :ref:`vpp_known_issues`.
+
+ - To identify performance changes due to VPP code changes from
+ v19.08.1 to v20.01.0, both have been tested in CSIT environment
+ ver. 2 and compared against each other. Separate RCA2 analysis
+ has been applied to this part. See
+ :ref:`vpp_compare_current_vs_previous_release` and
+ :ref:`vpp_known_issues`.
+
+ - **Intel Xeon 2n-clx testbeds**: VPP performance test data is now
+ included in this report. See :ref:`vpp_known_issues`.
+
+ - **Service density 2n-skx tests**: Added new NF density tests with
+ IPsec encryption between DUTs.
+
+ - **AVF tests**: Full test coveraged based on code changes in CSIT
+ core layer (driver/interface awareness) and generated by suite
+ generator (Intel Fortville NICs only).
+
+ - **Hoststack tests**: Major refactor of VPP Hoststack TCP/IP
+ performance tests using WRK generator talking to the VPP HTTP
+ static server plugin measuring connections per second and
+ requests per second. Added new iperf3 with LDPreload tests,
+ iperf3/LDPreload tests with packet loss induced via the VPP NSIM
+ (Network Simulator) plugin, and QUIC/UDP/IP transport tests.
+ All of the new tests measure goodput through the VPP Hoststack
+ from client to server.
+
+ - **Latency HDRHistogram**: Added High Dynamic Range Histogram
+ latency measurements based on the new capability in TRex traffic
+ generator. HDRH latency data presented in latency packet
+ percentile graphs and in detailed results tables.
+
+ - **Mellanox CX556A-EDAT tests**: Added tests with Mellanox
+ ConnectX5-2p100GE NICs in 2n-clx testbeds using VPP native rdma
+ driver.
+
+ - **IPsec reconfiguration tests**: Added tests measuring the impact
+ of IPsec tunnels creations and removals.
+
+ - **Load Balancer tests**: Added VPP performance tests for Maglev,
+ L3DSR (Direct Server Return), Layer 4 Load Balancing NAT Mode.
+
+#. TEST FRAMEWORK
+
+ - **CSIT Python3 support**: Full migration of CSIT from Python2.7 to
+ Python3.6. This change includes library migration, PIP dependency
+ upgrade, CSIT container images, infrastructure packages
+ ugrade/installation.
+
+ - **CSIT PAPI support**: Finished conversion of CSIT VAT L1 keywords
+ to PAPI L1 KWs in CSIT using VPP Python bindings (VPP PAPI).
+ Redesign of key components of PAPI Socket Executor and PAPI
+ history. Due to issues with PAPI performance, VAT is still used
+ in CSIT for all VPP scale tests. See known issues below.
+
+ - **Test Suite Generator**: Added capability to generate suites for
+ different drivers per NIC model including DPDK, AVF, RDMA.
+ Extended coverage for all tests.
+
+ - **General Code Housekeeping**: Ongoing RF keywords optimizations,
+ removal of redundant RF keywords and aligning of suite/test
+ setup/teardowns.
+
+#. TEST ENVIRONMENT
+
+ - **TRex Fortville NIC Performance**: Received FVL fix from Intel
+ resolving TRex low throughput issue. TRex per FVL NIC throughput
+ increased from ~27 Mpps to the nominal ~37 Mpps. For detail see
+ `CSIT-1503 <https://jira.fd.io/browse/CSIT-1503>`_ and `TRex-519
+ <https://trex-tgn.cisco.com/youtrack/issue/trex-519>`_].
+
+ - **New Intel Xeon Cascadelake Testbeds**: Added performance tests
+ for 2-Node-Cascadelake (2n-clx) testbeds with x710, xxv710 and
+ cx556a-edat NIC cards.
+
+#. PRESENTATION AND ANALYTICS LAYER
+
+ - **Graphs layout improvements**: Improved performance graphs layout
+ for better readibility and maintenance: test grouping, axis
+ labels, descriptions, other informative decoration.
+
+ - **Latency graphs**: Min/Avg/Max group bar latency graphs are
+ replaced with packet latency percentile distributon at different
+ background packet loads based on TRex latency hdrhistogram
+ measurements.
+
+.. 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-1498 | Memif tests are sporadically failing on initialization of memif connection. |
+| | <https://jira.fd.io/browse/CSIT-1498>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 4 | `VPP-1677 | 9000B ip4 nat44: VPP crash + coredump. |
+| | <https://jira.fd.io/browse/VPP-1677>`_ | VPP crashes very often in case that NAT44 is configured and it has to process IP4 jumbo frames (9000B). |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 5 | `CSIT-1591 | 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-1499>`_ | longer to program VPP). This needs to be addressed on the PAPI side. |
+| +-----------------------------------------+ |
+| | `VPP-1763 | |
+| | <https://jira.fd.io/browse/VPP-1763>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 6 | `VPP-1675 | IPv4 IPSEC 9000B packet tests are failing as no packet is forwarded. |
+| | <https://jira.fd.io/browse/VPP-1675>`_ | Reason: chained buffers are not supported. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 7 | `CSIT-1593 | IPv4 AVF 9000B packet tests are failing on 3n-skx while passing on 2n-skx. |
+| | <https://jira.fd.io/browse/CSIT-1593>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 8 | `CSIT-1675 | Intel Xeon 2n-skx, 3n-skx and 2n-clx testbeds behaviour and performance became inconsistent following |
+| | <https://jira.fd.io/browse/CSIT-1675>`_ | the upgrade to the latest Ubuntu 18.04 LTS kernel version (4.15.0-72-generic) and associated microcode |
+| | | packages (skx ucode 0x2000064, clx ucode 0x500002c). VPP as well as DPDK L3fwd tests are affected. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 9 | `CSIT-1679 | All 2n-clx VPP ip4 tests with xxv710 and avf driver are failing. |
+| | <https://jira.fd.io/browse/CSIT-1679>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 10 | `CSIT-1680 | Some 2n-clx cx556a rdma tests are failing. |
+| | <https://jira.fd.io/browse/CSIT-1680>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 11 | `CSIT-1699 | Root Cause Analysis for CSIT-2001. Investigate high stdev of tests with VPP inside VM. |
+| | <https://jira.fd.io/browse/CSIT-1699>`_ | |
+| +-----------------------------------------+ |
+| | `CSIT-1704 | |
+| | <https://jira.fd.io/browse/CSIT-1704>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 12 | `CSIT-1699 | Root Cause Analysis for CSIT-2001. Identify cause of dot1q-l2xcbase progression. |
+| | <https://jira.fd.io/browse/CSIT-1699>`_ | |
+| +-----------------------------------------+ |
+| | `CSIT-1705 | |
+| | <https://jira.fd.io/browse/CSIT-1705>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 13 | `CSIT-1699 | Root Cause Analysis for CSIT-2001. Identify cause of avf-ip4scale regression. |
+| | <https://jira.fd.io/browse/CSIT-1699>`_ | |
+| +-----------------------------------------+ |
+| | `CSIT-1706 | |
+| | <https://jira.fd.io/browse/CSIT-1706>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 14 | `CSIT-1699 | Root Cause Analysis for CSIT-2001. Identify cause of progression in vhost-user tests with testpmd in VM. |
+| | <https://jira.fd.io/browse/CSIT-1699>`_ | |
+| +-----------------------------------------+ |
+| | `CSIT-1707 | |
+| | <https://jira.fd.io/browse/CSIT-1707>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 15 | `CSIT-1699 | Root Cause Analysis for CSIT-2001. Identify cause for avf-ip4base regression. |
+| | <https://jira.fd.io/browse/CSIT-1699>`_ | |
+| +-----------------------------------------+ |
+| | `CSIT-1708 | |
+| | <https://jira.fd.io/browse/CSIT-1708>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+