+.. _vpp_performance_tests_release_notes:
+
Release Notes
=============
#. VPP PERFORMANCE TESTS
- - **Service density 2n-skx tests**: Network Function Virtualization (NFV)
- service density tests focus on measuring total per server throughput at
- varied NFV service *packing* densities with vswitch providing host
- dataplane. The goal is to compare and contrast performance of a shared
- vswitch for different network topologies and virtualization technologies,
- and their impact on vswitch performance and efficiency in a range of NFV
- service configurations.
-
- - **Experimental Soak Tests**: Added performamce soak tests framework
- code for extended time duration tests and throughput discovery
- at given PLR and at give total test time e.g. minutes, hours,
- days, weeks, months, years. See updated
- :ref:`test_methodology` section for more details.
+ - **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
- - **Container code optimizations**: Optimized container library allows to
- run containre_memif tests faster.
+ - **Telemetry retouch**: Refactored telemetry retrieval from DUTs and
+ SUTs. Included VPP perfmon plugin telemetry with all perfmon
+ bundles available in VPP release.
- - **CSIT PAPI Support**: Continue converting existing VAT L1 keywords to
- PAPI L1 KWs in CSIT using VPP Python bindings. Required for migrating away
- from VAT.
+ - **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.
- - **General Code Housekeeping**: Ongoing RF keywords optimizations,
- removal of redundant RF keywords.
+ - **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>`_.
-#. PRESENTATION AND ANALYTICS LAYER
+ - **CSIT test environment** version has been updated to ver. 7, see
+ :ref:`test_environment_versioning`.
- - **Graphs Layout Improvements**: Improved performance graphs layout
- for better readibility and maintenance: test grouping, axis
- labels, descriptions, other informative decoration.
+ - **CSIT in AWS environment**: Added CSIT support for AWS c5n
+ instances environment. Test results will be added in sub-sequent
+ CSIT-2106 report.
-#. MISCELLANEOUS
+ - **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
- - **3n-dnv Tests (3rd Party)**: Published performance tests for 3n-
- dnv (3-Node Atom Denverton) from 3rd party testbeds running FD.io
- |csit-release| automated testing code.
- Only graphs for Packet Throughput and Speedup Multi-core and not
- for Packet Latency were published as there are no results for Packet
- Latency available.
+ - **Graphs improvements**: Updated Packet Latency graphs,
+ see :ref:`latency_methodology`.
.. raw:: latex
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-1562 | Link bonding (mode LACP, transmit policy l34) test are failing due to VPP crashing producing core dump. |
-| | <https://jira.fd.io/browse/VPP-1562>`_ | |
-+----+-----------------------------------------+---------------------------------------------------------------------------------------------------------------------------------+
-| 3 | `CSIT-1427 | Scale HW IPsec are failing due to issue with selecting ipsec backend in VPP. |
-| | <https://jira.fd.io/browse/CSIT-1427>`_ | |
-+----+-----------------------------------------+---------------------------------------------------------------------------------------------------------------------------------+
-| 4 | `VPP-1563 | AVF L2patch tests are failing for all packet size and core combination. Reason: null-node blackholed packets in show error. |
-| | <https://jira.fd.io/browse/VPP-1563>`_ | |
-+----+-----------------------------------------+---------------------------------------------------------------------------------------------------------------------------------+
-| 5 | `CSIT-1234 | VPP IPSecHW/IPSecsW scale interface mode, low NDR and PDR 64B throughput in 3n-hsw testbeds, in CSIT-19.01 vs. CSIT-18.10. |
-| | <https://jira.fd.io/browse/CSIT-1234>`_ | |
-+----+-----------------------------------------+---------------------------------------------------------------------------------------------------------------------------------+
-| 6 | `CSIT-1428 | VM vhost tests with RXQ more than 2 are failing on 3n-skx. Suspecting RXQ configuration issues. |
-| | <https://jira.fd.io/browse/CSIT-1428>`_ | |
-+----+-----------------------------------------+---------------------------------------------------------------------------------------------------------------------------------+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | 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. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+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, both slow path and fast path. |
+| | <https://jira.fd.io/browse/VPP-1972>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
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