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.. _vpp_performance_tests_release_notes:
Release Notes
=============
Changes in |csit-release|
-------------------------
#. VPP PERFORMANCE TESTS
- **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`.
- **AWS EC2 c5n**: Performance test data for AWS c5n instances has
been added to report for ip4, ip6 and ipsec tests.
- **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
- **CSIT test environment** version has been updated to ver. 8, see
:ref:`test_environment_versioning`.
- **CSIT in AWS environment**: Completed CSIT automation support for
AWS c5n instances environment, including weekly performance
trending tests execution.
- **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.
- **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. 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>`_ | |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
|
