+.. _vpp_performance_tests_release_notes:
+
Release Notes
=============
#. VPP PERFORMANCE TESTS
- - **Service density 2n-skx tests**: Added higher NF density tests with two
- NFs' data-plane threads sharing a physical core. VPP IPv4 routing is now
- used as a VNF payload similar to CNF tests.
-
- - **Soak Tests**: Optimized performamce soak tests framework
- code for extended time duration tests and throughput discovery
- at given PLR and at give total test time e.g. minutes, hours,
- days, weeks. See updated
- :ref:`test_methodology` section for more details.
+ - **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
- - **Qemu code refactor**: Complete code refactor of the key components of
- QemuUtil.py and QemuManager.py (L1 and L2 KW counterparts). Added
- implementation of kernel-image-kvm based VM replacing the previously used
- NestedVM images. Added ability to run VPP as a payload in VNF.
+ - **Removed ASTF PPS tests**: They provide no real benefit
+ compared to TPUT tests. The ip4base variants renamed to TPUT.
- - **CSIT PAPI Support**: Continued conversion of CSIT VAT L1 keywords to
- PAPI L1 KWs in CSIT using VPP Python bindings. Redesign of key components
- of PAPI Executor and PAPI history.
+ - **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.
- - **General Code Housekeeping**: Ongoing RF keywords optimizations,
- removal of redundant RF keywords.
+ - **CSIT test environment** version has been updated to ver. 10, see
+ :ref:`test_environment_versioning`.
- - **Test suite generator**: Added capability to generate suites for
- different NIC models as well as throughput search algorithm types. Uses
- base tests suites as source.
+ - **CSIT PAPI support**: Due to issues with PAPI performance, and
+ deprecation of VAT, VPP CLI is used in CSIT for many VPP scale
+ tests. See :ref:`vpp_known_issues`.
- - **TOX verification**: Added verifications for test suite generator.
+ - **General Code Housekeeping**: Ongoing code optimizations and bug
+ fixes.
#. PRESENTATION AND ANALYTICS LAYER
- - **Graphs Layout Improvements**: Improved performance graphs layout
- for better readibility and maintenance: test grouping, axis
- labels, descriptions, other informative decoration.
-
-..
- #. MISCELLANEOUS
-
- - **2n-dnv Tests (3rd Party)**: Published performance tests for 2n-
- dnv (2-Node Atom Denverton) from 3rd party testbeds running FD.io
- |csit-release| automated testing code.
- Only graphs for Packet Throughput and Speedup Multi-core and not
- for Packet Latency were published as there are no results for Packet
- Latency available.
+ - **Graphs improvements**: Updated Packet Latency graphs,
+ see :ref:`latency_methodology`.
.. raw:: latex
Known Issues
------------
-List of known issues in |csit-release| for VPP performance tests:
-
-+----+-----------------------------------------+----------------------------------------------------------------------------------------------------------+
-| # | JiraID | Issue Description |
-+====+=========================================+==========================================================================================================+
-| 1 | `CSIT-570 | Sporadic (1 in 200) NDR discovery test failures on x520. DPDK reporting rx-errors, indicating L1 issue. |
-| | <https://jira.fd.io/browse/CSIT-570>`_ | Suspected issue with HW combination of X710-X520 in LF testbeds. Not observed outside of LF testbeds. |
-+----+-----------------------------------------+----------------------------------------------------------------------------------------------------------+
-| 2 | `CSIT-1427 | IPsec are failing due to issue with selecting ipsec backend. |
-| | <https://jira.fd.io/browse/CSIT-1427>`_ | |
-+----+-----------------------------------------+----------------------------------------------------------------------------------------------------------+
-| 3 | `CSIT-1498 | Memif tests are sporadically failing on initialization of memif connection. |
-| | <https://jira.fd.io/browse/CSIT-1498>`_ | |
-+----+-----------------------------------------+----------------------------------------------------------------------------------------------------------+
-| 4 | `CSIT-1499 | AVF tests are sporadically failing on initialization of AVF interface. |
-| | <https://jira.fd.io/browse/CSIT-1498>`_ | |
-+----+-----------------------------------------+----------------------------------------------------------------------------------------------------------+
+New
+___
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1827 | 3n-icx, 3n-skx: all AVF crypto tests sporadically fail. 1518B with no traffic, IMIX with excessive |
+| | <https://jira.fd.io/browse/CSIT-1827>`_ | packet loss. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 2 | `CSIT-1830 | All testbeds: All TCP tput (and pps) tests are failing for small packets. |
+| | <https://jira.fd.io/browse/CSIT-1830>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 3 | `CSIT-1832 | 3n-alt: NDR 1 packet lost on random tests. |
+| | <https://jira.fd.io/browse/CSIT-1832>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 4 | `CSIT-1834 | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch. |
+| | <https://jira.fd.io/browse/CSIT-1834>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 5 | `CSIT-1846 | 2n-skx, 2n-clx, 2n-icx: ALL 1518B TCP tput tests failing with big packet loss. |
+| | <https://jira.fd.io/browse/CSIT-1846>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 6 | `CSIT-1847 | 2n-skx: all 10vm-1t test failed with half of packets dropped. |
+| | <https://jira.fd.io/browse/CSIT-1847>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 7 | `CSIT-1849 | 2n-skx: UDP 16m tput tests fail to create all sessions. |
+| | <https://jira.fd.io/browse/CSIT-1849>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+Previous
+________
+
+Issues reported in previous releases which still affect the current results.
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1799 | All NAT44-ED 16M scale tests fail while setting NAT44 address range. |
+| | <https://jira.fd.io/browse/CSIT-1799>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 2 | `CSIT-1800 | All Geneve L3 mode scale tests (1024 tunnels) are failing. |
+| | <https://jira.fd.io/browse/CSIT-1800>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 3 | `CSIT-1802 | AF-XDP - NDR tests failing from time to time. |
+| | <https://jira.fd.io/browse/CSIT-1802>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 4 | `CSIT-1803 | 3n-icx testbeds (Icelake): all IMIX aes128cbc-hmac512sha tests are failing due to excessive packet loss. |
+| | <https://jira.fd.io/browse/CSIT-1803>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 5 | `CSIT-1804 | 3n-tsh, 3n-alt testbed (Taishan, Altra): NDR tests failing from time to time. |
+| | <https://jira.fd.io/browse/CSIT-1804>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 6 | `CSIT-1812 | All IMIX NAT44DET 4m 16m scale tests fail due to not creating required session count. |
+| | <https://jira.fd.io/browse/CSIT-1812>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 7 | `CSIT-1782 | Multicore AVF tests are failing when trying to create interface. |
+| | <https://jira.fd.io/browse/CSIT-1782>`_ | Frequency is reduced by CSIT workaround, but occasional failures do still happen. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 8 | `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. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 9 | `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>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 10 | `CSIT-1801 | 9000B payload frames not forwarded over tunnels due to violating supported Max Frame Size (VxLAN, LISP, |
+| | <https://jira.fd.io/browse/CSIT-1801>`_ | SRv6). |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 11 | `CSIT-1808 | All tests with 9000B payload frames not forwarded over memif interfaces. |
+| | <https://jira.fd.io/browse/CSIT-1808>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 12 | `CSIT-1809 | All tests with 9000B payload frames not forwarded over vhostuser interfaces. |
+| | <https://jira.fd.io/browse/CSIT-1809>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+Fixed
+_____
+
+Issues reported in previous releases which were fixed in this release:
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1810 | DPDK - performance regression with DPDK driver when Max Frame Size is set to less than 2023. |
+| | <https://jira.fd.io/browse/CSIT-1810>`_ | |
+| +-----------------------------------------+ |
+| | `VPP-1876 | Worse performance with DPDK driver when MTU is set to 2022 or less. |
+| | <https://jira.fd.io/browse/VPP-1876>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 2 | `CSIT-1811 | All 9000B NAT44DET 64k 1m scale tests fail due to bps rate set to high on TRex. |
+| | <https://jira.fd.io/browse/CSIT-1811>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 3 | `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. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+.. _vpp_rca:
+
+Root Cause Analysis for Performance Changes
+-------------------------------------------
+
+List of RCAs in |csit-release| for VPP performance changes:
+
++----+-----------------------------------------+-------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+=====================================================================================+
+| 1 | `CSIT-1851 | trending regression: various icelake tests around 2202-04-15 |
+| | <https://jira.fd.io/browse/CSIT-1851>`_ | 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 |
+| | <https://jira.fd.io/browse/VPP-2030>`_ | "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 |
+| | <https://jira.fd.io/browse/CSIT-1852>`_ | 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 |
+| | <https://jira.fd.io/browse/CSIT-1853>`_ | VPP change added more computation to slow path (in order to support multiple VRFs). |
+| | | Not clear if the VPP implementation is optimized enough. |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+