X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=docs%2Freport%2Fvpp_performance_tests%2Fcsit_release_notes.rst;h=aac124144c030c4ea8bd2f5ee7511ed8ac30a872;hp=b8b3419de76989fca18998dd5c2611c906d09214;hb=7889544ddfba775bf07bcd331f022de4650e59dc;hpb=3b0d5244f56ce6a2fb6f9233f650435cee01d7cd diff --git a/docs/report/vpp_performance_tests/csit_release_notes.rst b/docs/report/vpp_performance_tests/csit_release_notes.rst index b8b3419de7..aac124144c 100644 --- a/docs/report/vpp_performance_tests/csit_release_notes.rst +++ b/docs/report/vpp_performance_tests/csit_release_notes.rst @@ -8,39 +8,18 @@ Changes in |csit-release| #. VPP PERFORMANCE TESTS - - **Regressions with DPDK drivers**: Change from DPDK v21.08 to DPDK - v21.11 introduced regression across all tests using dpdk - drivers (with dpdk_plugin loaded). Compared to previous VPP - release performance drop varies in the range of -15% to -6%, - depending on test. It is related to updated MTU checks within - DPDK code and associated VPP code changes. See - `VPP v2202 release notes `_ - and :ref:`vpp_known_issues`. - - - **Number of CSIT 9000B frame tests failing**: tests with higher - encapsulation overhead are failing due to exceeding default - Ethernet Maximum Frame Size value that has been reduced by MTU - related VPP code changes. See - `VPP v2202 release notes `_ - and :ref:`vpp_known_issues`. - - - **Intel Xeon Ice Lake**: Performance test data for these platforms - is now provided by testbeds newly installed in FD.io CSIT labs. - For details about the physical setup see - :ref:`physical_testbeds_2n_icx` and - :ref:`physical_testbeds_3n_icx`. - - - **Arm Ampere Altra**: Performance test data for these platforms - is now provided by testbeds newly installed in FD.io CSIT labs. - For details about the physical setup see - :ref:`physical_testbeds_3n_alt`. - - **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 + - **Removed ASTF PPS tests**: They provide no real benefit + compared to TPUT tests. The ip4base variants renamed to TPUT. + + - **Changed TCP TPUT profiles**: The previous ones were found to be faulty. + The new ones do not use bursts of packets to avoid CSIT-1830 and CSIT-1846. + - **CSIT test environment** version has been updated to ver. 10, see :ref:`test_environment_versioning`. @@ -165,11 +144,29 @@ Issues reported in previous releases which were fixed in this release: | | `_ | Two symptoms: 1. 10-20% regression across most tests. 2. DUT performance cap just below 38 Mpps. | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +.. _vpp_rca: + Root Cause Analysis for Performance Changes ------------------------------------------- List of RCAs in |csit-release| for VPP performance changes: -+----+-----------------------------------------+--------------------------------------------------------------+ -| # | JiraID | Issue Description | -+====+=========================================+==============================================================+ ++----+-----------------------------------------+-------------------------------------------------------------------------------------+ +| # | JiraID | Issue Description | ++====+=========================================+=====================================================================================+ +| 1 | `CSIT-1851 | trending regression: various icelake tests around 2202-04-15 | +| | `_ | Somewhat expected consequence of a VPP usability fix, | +| | | the previous VPP compiler version was too new for the OS used. | ++----+-----------------------------------------+-------------------------------------------------------------------------------------+ +| 2 | `VPP-2030 | regression: ip6base on ICX around 2022-03-23 | +| | `_ | "Loads blocked due to overlapping with a preceding store that cannot be forwarded." | +| | | started happening in ip6-lookup graph node. | ++----+-----------------------------------------+-------------------------------------------------------------------------------------+ +| 3 | `CSIT-1852 | 2n-zn2 mellanox performance cap | +| | `_ | Old issue, only now distinguished from CSIT-1751. | +| | | This testbed+nic combination is capped below 28 Mpps, cause not identified yet. | ++----+-----------------------------------------+-------------------------------------------------------------------------------------+ +| 4 | `CSIT-1853 | trending regression: nat44ed cps around 2202-04-01 | +| | `_ | VPP change added more computation to slow path (in order to support multiple VRFs). | +| | | Not clear if the VPP implementation is optimized enough. | ++----+-----------------------------------------+-------------------------------------------------------------------------------------+