.. _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. | | | `_ | 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. | | | `_ | 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. | | | `_ | 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 | | | `_ | 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. | | | `_ | More improvements needed to achieve sufficient configuration speed. | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | 5 | `CSIT-1789 | IPSEC SW async scheduler tests show bad behavior. | | | `_ | VPP code is not behaving correctly when crypto workers are the bottleneck. | | +-----------------------------------------+ | | 5 | `VPP-1998 | | | | `_ | | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | 6 | `CSIT-1785 | NAT44ED tests failing to establish all TCP sessions. | | | `_ | 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. | | | `_ | | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | 7 | `CSIT-1791 | Performance regression in RDMA tests, due to CSIT environment changes. | | | `_ | 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. | +----+-----------------------------------------+------------------------------------------------------------+