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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
------------
Fixed
_____
Issues reported in previous releases which were fixed in this release:
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
| # | JiraID | Issue Description |
+====+=========================================+===========================================================================================================+
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
| 1 | `CSIT-1789 | AVF driver does not perform RSS in a deterministic way. |
| | <https://jira.fd.io/browse/CSIT-1789>`_ | VPP now uses the same RSS key with AVF driver as with DPDK driver. |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
| 2 | `CSIT-1786 | IP4 and IP6 scale tests failing with no traffic forwarded. |
| | <https://jira.fd.io/browse/CSIT-1786>`_ | CSIT replaced the old single VAT command by file full of "exec" CLI commands executed by VAT. |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
Old
___
Issues reported in previous releases which still affect the current results.
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
| # | JiraID | Issue Description |
+====+=========================================+===========================================================================================================+
| 3 | `CSIT-1782 | Multicore AVF tests are failing when trying to create interface. |
| | <https://jira.fd.io/browse/CSIT-1782>`_ | Frequency is reduced by s CSIT workaround, but occasional failures do still happen. |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
| 4 | `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. |
| +-----------------------------------------+ Currently, the time critical code uses VAT running large files with exec statements and CLI commands. |
| | `VPP-1763 | Still, we needed to reduce the number of scale tests run to keep overall duration reasonable. |
| | <https://jira.fd.io/browse/VPP-1763>`_ | More improvements needed to achieve sufficient configuration speed. |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
| 5 | `CSIT-1789 | IPSEC SW async scheduler tests show bad behavior. |
| | <https://jira.fd.io/browse/CSIT-1789>`_ | VPP code is not behaving correctly when crypto workers are the bottleneck. |
| +-----------------------------------------+ |
| 5 | `VPP-1998 | |
| | <https://jira.fd.io/browse/VPP-1998>`_ | |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
| 6 | `CSIT-1785 | NAT44ED tests failing to establish all TCP sessions. |
| | <https://jira.fd.io/browse/CSIT-1785>`_ | At least for max scale, in allotted time (limited by session 500s timeout) due to worse |
| +-----------------------------------------+ slow path performance than previously measured and calibrated for. |
| | `VPP-1972 | CSIT removed the max scale NAT tests to avoid this issue. |
| | <https://jira.fd.io/browse/VPP-1972>`_ | |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
| 7 | `CSIT-1791 | Performance regression in RDMA tests, due to CSIT environment changes. |
| | <https://jira.fd.io/browse/CSIT-1791>`_ | Two symptoms: 1. 10-20% regression across most tests. 2. DUT performance cap just below 38 Mpps. |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
New
___
No new issues appeared in |csit-release| for VPP performance tests,
except for the performance changes listed below.
Root Cause Analysis for Performance Changes
-------------------------------------------
List of RCAs in |csit-release| for VPP performance changes:
+----+-----------------------------------------+------------------------------------------------------------+
| # | JiraID | Issue Description |
+====+=========================================+============================================================+
| 0 | | To be updated when descriptions in Jira tickets are ready. |
+----+-----------------------------------------+------------------------------------------------------------+
|
