.. _vpp_performance_tests_release_notes: Release Notes ============= Changes in |csit-release| ------------------------- #. VPP PERFORMANCE TESTS - **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 - **Telemetry retouch**: Refactored telemetry retrieval from DUTs and SUTs. Included VPP perfmon plugin telemetry with all perfmon bundles available in VPP release. - **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. - **CSIT test environment** version has been updated to ver. 7, see :ref:`test_environment_versioning`. - **CSIT in AWS environment**: Added CSIT support for AWS c5n instances environment. Test results will be added in sub-sequent CSIT-2106 report. - **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 - **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. | | | `_ | | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | 2 | `CSIT-1763 | Adapt ramp-up phase of nat44 tests for different frame sizes. | | | `_ | 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 | | | `_ | 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 | | | `_ | too long. | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ 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. | | | `_ | | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+