+.. _vpp_performance_tests_release_notes:
+
Release Notes
=============
#. VPP PERFORMANCE TESTS
- - **BMRR Throughput**: MRR (Maximum Receive Rate) test code has been
- updated with a configurable burst MRR parameters: trial duration
- and number of trials in a single burst. Enables a new Burst MRR
- (BMRR for short) methodology for more precise performance
- trending. See updated :ref:`test_methodology` section
- for more details.
-
- - **2n-skx tests**: Added performamce tests for 2n-skx (2-Node Xeon
- Skylake) testbeds: focus on baseline and scale tests, including
- VM vhost and Container memif tests.
-
- - **3n-skx tests**: Added performamce tests for 3n-skx (3-Node Xeon
- Skylake) testbeds: VM vhost and Container memif tests.
-
- - **VXLAN Scale Tests**: Added performamce tests for VXLAN scale with
- dot1q and VPP L2BD.
-
- - **AVF Driver Tests**: Added performamce tests for i40e AVF driver
- on VPP, no DPDK required.
-
- - **QAT**: Fixed reoccuring issues with QAT crypto accelerator cards.
+ - **Intel Xeon Ice Lake**: Performance test data for these platforms
+ continues to be provided by external Intel benchmarking labs
+ executing |csit-release| tests. For details about the physical
+ setup see :ref:`tested_physical_topologies`.
- - **VM Vhost Virtio Params Combinations**: Added performance tests
- for VM vhost with different virtio parameters combinations:
- indirect buffers, mergeable buffers.
+ - **AWS EC2 c5n**: Performance test data for AWS c5n instances has
+ been added to report for ip4, ip6 and ipsec tests.
- - **K8s/Ligato in Trending**: Added K8s/Ligato Container memif tests
- to daily trending.
+ - **Reduction of tests**: Removed certain test variations executed
+ iteratively for the report (as well as in daily and weekly
+ trending) due to physical testbeds overload.
#. TEST FRAMEWORK
- - **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.
+ - **CSIT test environment** version has been updated to ver. 8, see
+ :ref:`test_environment_versioning`.
- - **Trending Tests BMRR**: Used new Burst MRR (BMRR) tests for daily
- trending.
+ - **CSIT in AWS environment**: Completed CSIT automation support for
+ AWS c5n instances environment, including weekly performance
+ trending tests execution.
- - **Per VPP Patch Performance Checks**: Per VPP gerrit patch vs.
- parent performance tests, anomaly detection and no verify voting
- (-1/0/+1) yet. Manual trigger only. Not "marketed" to FD.io
- community yet to avoid excessive LFN FD.io physical performance
- testbed blocking.
+ - **CSIT PAPI support**: Due to issues with PAPI performance, and
+ deprecation of VAT, CLI is used in CSIT for many VPP scale tests.
+ See known issues below.
- - **Patch-on-Patch Infra**: Added capability to run performance tests
- using CSIT gerrit patch code testing VPP gerrit patch code, i.e.
- before any VPP and/or CSIT code is merged into git branch.
-
- - **CSIT PAPI Support**: Initial implementation of PAPI L1 KWs in
- CSIT using VPP Python bindings. Required for migraing away from
- VAT. Very few L1 KWs implemented ("show version", "show
- interfaces").
-
- - **General Code Housekeeping**: Ongoing RF keywords optimizations,
- removal of redundant RF keywords.
+ - **General Code Housekeeping**: Ongoing code optimizations and bug
+ fixes.
#. PRESENTATION AND ANALYTICS LAYER
- - **Graphs Layout Improvements**: Improved performance graphs layout
- for better readibility and maintenance: test grouping, axis
- labels, descriptions, other informative decoration. Master report
- generated. 744 graphs(!)
-
- - **Performance Trending**: Further improvements of continuous
- performance trending, anomaly detection and analysis.
-
-#. MISCELLANEOUS
-
- - **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 | `CSIT-1234 | VPP IPSecHW scale interface mode 1core, low NDR and PDR 64B throughput in 3n-hsw testbeds, in CSIT-18.07 vs. CSIT-18.04. |
-| | <https://jira.fd.io/browse/CSIT-1234>`_ | ip4ipsecscale1000tnl-ip4base-int 1core CSIT-18.07/18.04 relative change: NDR -31%, PDR -32%, MRR -38%. |
-+----+-----------------------------------------+---------------------------------------------------------------------------------------------------------------------------------+
-| 3 | `CSIT-1242 | VPP xl710 ip4base test 1core, low NDR and PDR 64B throughput in 3n-hsw testbeds, in CSIT-18.07 vs. CSIT-18.04. |
-| | <https://jira.fd.io/browse/CSIT-1242>`_ | xl710 ip4base 1core CSIT-18.07/18.04 relative change: NDR -29%, high stdev. |
-+----+-----------------------------------------+---------------------------------------------------------------------------------------------------------------------------------+
-| 4 | `CSIT-1243 | VPP nat44 base test 2core, low NDR and PDR 64B throughput in 3n-skx testbeds, compared to 3n-hsw testbeds. |
-| | <https://jira.fd.io/browse/CSIT-1243>`_ | ip4base-nat44 2core 3n-skx/3n-hsw relative change: NDR -19%, PDR -22%. |
-+----+-----------------------------------------+---------------------------------------------------------------------------------------------------------------------------------+
-| 5 | `CSIT-1246 | Ligato K8S orchestrated tests are failing due to incompatibility of the latest released Ligato vpp-agent with VPP-18.07. |
-| | <https://jira.fd.io/browse/CSIT-1246>`_ | Past vpp-agent releases are not compatible either. |
-+----+-----------------------------------------+---------------------------------------------------------------------------------------------------------------------------------+
-
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1782 | Multicore AVF tests are failing when trying to create interface. The issue persists after FVL FW upgrade. |
+| | <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-1780 | IPSEC SW async scheduler MRR tests failing with no traffic forwarded. |
+| | <https://jira.fd.io/browse/CSIT-1780>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 6 | `CSIT-1786 | IP4 and IP6 scale tests failing with no traffic forwarded. |
+| | <https://jira.fd.io/browse/CSIT-1786>`_ | Issue reported to VPP devs. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 7 | `CSIT-1785 | NAT44ED tests failing to establish all TCP sessions. |
+| | <https://jira.fd.io/browse/CSIT-1785>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 8 | `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>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
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