+.. _vpp_performance_tests_release_notes:
+
Release Notes
=============
#. VPP PERFORMANCE TESTS
- - **Intel Xeon 2n-skx, 3n-skx and 2n-clx testbeds**: VPP performance
- test data is not included in this report version. This is due to
- the lower performance and behaviour inconsistency of these
- systems following the upgrade of processor microcode packages
- (skx ucode 0x2000064, clx ucode 0x500002c), done as part of
- updating Ubuntu 18.04 LTS kernel version. Tested VPP and DPDK
- applications (L3fwd) are affected. Skx and Clx test data will be
- added in subsequent maintenance report version(s) once the issue
- is resolved. See :ref:`vpp_known_issues`.
-
- - **Service density 2n-skx tests**: Added new NF density tests with
- IPsec encryption between DUTs.
-
- - **AVF tests**: Full test coveraged based on code changes in CSIT
- core layer (driver/interface awareness) and generated by suite
- generator (Intel Fortville NICs only).
-
- - **Hoststack TCP/IP tests**: Major refactor of VPP Hoststack TCP/IP
- performance tests using WRK generator talking to the VPP HTTP
- static server plugin measuring connections per second and
- requests per second. Added iperf3 tests with LDPreload.
+ - **Added new performance testbed 3n-snr** (3 Node SnowRidge, with Intel
+ Atom processors), to later replace 3n-dnv and 2n-dnv (3 and 2 Node
+ Denverton) testbeds.
- - **Latency HDRHistogram**: Added High Dynamic Range Histogram
- latency measurements based on the new capability in TRex traffic
- generator. HDRH latency data presented in latency packet
- percentile graphs and in detailed results tables.
+ - **Added GTPU HW offload tests** for Intel e810 4p25ge NICs on 2n-icx
+ testbeds.
- - **Mellanox MCX556A-EDAT tests**: Added tests with Mellanox
- ConnectX5-2p100GE NICs in 2n-clx testbeds using VPP native rdma
- driver.
+ - **Added Wireguard tests** using VPP software crypto (3n-icx, 3n-snr
+ testbeds) and using built-in hardware crypto QAT device (3n-snr testbed
+ only).
- - **IPsec reconfiguration tests**: Added tests measuring the impact
- of IPsec tunnels creations and removals.
-
- - **Load Balancer tests**: Added VPP performance tests for Maglev,
- L3DSR (Direct Server Return), Layer 4 Load Balancing NAT Mode.
+ - **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 Python3 support**: Full migration of CSIT from Python2.7 to
- Python3.6. This change includes library migration, PIP dependency
- upgrade, CSIT container images, infrastructure packages
- ugrade/installation.
-
- - **CSIT PAPI support**: Finished conversion of CSIT VAT L1 keywords
- to PAPI L1 KWs in CSIT using VPP Python bindings (VPP PAPI).
- Redesign of key components of PAPI Socket Executor and PAPI
- history. Due to issues with PAPI performance, VAT is still used
- in CSIT for all VPP scale tests. See known issues below.
+ - **CSIT test environment** version has been updated to ver. 11, see
+ :ref:`test_environment_versioning`.
- - **Test Suite Generator**: Added capability to generate suites for
- different drivers per NIC model including DPDK, AVF, RDMA.
- Extended coverage for all tests.
+ - **TCP tput profiles** have to be changed, as newer TRex versions
+ are not deterministic enough when deciding when to send an ACK.
- - **General Code Housekeeping**: Ongoing RF keywords optimizations,
- removal of redundant RF keywords and aligning of suite/test
- setup/teardowns.
+ - **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`.
+ - **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.
-
- - **Latency graphs**: Min/Avg/Max group bar latency graphs are
- replaced with packet latency percentile distributon at different
- background packet loads based on TRex latency hdrhistogram
- measurements.
-
-..
- // Alternative Note for 1st Bullet when bad microcode Skx, Clx results are published
- - **Intel Xeon 2n-skx, 3n-skx and 2n-clx testbeds**: VPP performance
- test data is included in this report version, but it shows lower
- performance and behaviour inconsistency of these systems
- following the upgrade of processor microcode packages (skx ucode
- 0x2000064, clx ucode 0x500002c) as part of updating Ubuntu 18.04
- LTS kernel version. Tested VPP and DPDK applications (L3fwd) are
- affected. Skx and Clx test data will be corrected in subsequent
- maintenance report version(s) once the issue is resolved. See
- :ref:`vpp_known_issues`.
+ - **C-Dash** `performance dashboard <http://csit.fd.io/>`_ got updated UI and
+ updated backend increasing its performance and robustness.
.. raw:: latex
Known Issues
------------
-List of known issues in |csit-release| for VPP performance tests:
+New
+___
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1850 | 2n-dnv: sporadic 1518B tput tests failing to establish required sessions. |
+| | <https://jira.fd.io/browse/CSIT-1850>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 2 | `CSIT-1864 | 2n-clx: half of the packets lost on PDR tests. |
+| | <https://jira.fd.io/browse/CSIT-1864>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 3 | `CSIT-1871 | 3n-snr: 25Ge Interface goes down randomly. |
+| | <https://jira.fd.io/browse/CSIT-1871>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 4 | `CSIT-1877 | 3n-alt, 3n-tsh: VM tests failing to boot VM. |
+| | <https://jira.fd.io/browse/CSIT-1877>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 5 | `CSIT-1883 | 3n-snr: All hwasync wireguard tests failing when trying to verify device. |
+| | <https://jira.fd.io/browse/CSIT-1883>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 6 | `CSIT-1884 | 2n-clx, 2n-icx: All NDR PDR IMIX over 1M sessions BIDIR tests failing to create enough sessions. |
+| | <https://jira.fd.io/browse/CSIT-1884>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 7 | `CSIT-1885 | 3n-icx: 9000b ip4 NDRPDR AVF tests are failing to forward traffic. |
+| | <https://jira.fd.io/browse/CSIT-1885>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+Previous
+________
+
+Issues reported in previous releases which still affect the current results.
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-| # | JiraID | Issue Description |
+| # | 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. |
+| 1 | `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. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 2 | `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. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 3 | `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>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 4 | `CSIT-1799 | All NAT44-ED 16M sessions CPS scale tests fail while setting NAT44 address range. |
+| | <https://jira.fd.io/browse/CSIT-1799>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 5 | `CSIT-1800 | All Geneve L3 mode scale tests (1024 tunnels) are failing. |
+| | <https://jira.fd.io/browse/CSIT-1800>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 6 | `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). |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-| 2 | `VPP-662 | 9000B packets not supported by NICs VIC1227 and VIC1387. |
-| | <https://jira.fd.io/browse/VPP-662>`_ | |
+| 7 | `CSIT-1802 | AF-XDP - NDR tests failing from time to time. |
+| | <https://jira.fd.io/browse/CSIT-1802>`_ | |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-| 3 | `CSIT-1498 | Memif tests are sporadically failing on initialization of memif connection. |
-| | <https://jira.fd.io/browse/CSIT-1498>`_ | |
+| 8 | `CSIT-1804 | All testbeds: NDR tests failing from time to time. |
+| | <https://jira.fd.io/browse/CSIT-1804>`_ | |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-| 4 | `VPP-1677 | 9000B ip4 nat44: VPP crash + coredump. |
-| | <https://jira.fd.io/browse/VPP-1677>`_ | VPP crashes very often in case that NAT44 is configured and it has to process IP4 jumbo frames (9000B). |
+| 9 | `CSIT-1808 | All tests with 9000B payload frames not forwarded over memif interfaces. |
+| | <https://jira.fd.io/browse/CSIT-1808>`_ | |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-| 5 | `CSIT-1591 | 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-1499>`_ | longer to program VPP). This needs to be addressed on the PAPI side. |
-| +-----------------------------------------+ |
-| | `VPP-1763 | |
-| | <https://jira.fd.io/browse/VPP-1763>`_ | |
+| 10 | `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. |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-| 6 | `VPP-1675 | IPv4 IPSEC 9000B packet tests are failing as no packet is forwarded. |
-| | <https://jira.fd.io/browse/VPP-1675>`_ | Reason: chained buffers are not supported. |
+| 11 | `CSIT-1835 | 3n-icx: vppecho BPS tests failing on timeout when checking hoststack finished. |
+| | <https://jira.fd.io/browse/CSIT-1835>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| 12 | `CSIT-1849 | 2n-skx, 2n-clx, 2n-icx: UDP 16m TPUT tests fail to create all sessions. |
+| | <https://jira.fd.io/browse/CSIT-1849>`_ | |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+
+Fixed
+_____
+
+Issues reported in previous releases which were fixed in this release:
+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+===========================================================================================================+
+| 1 | `CSIT-1834 | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch. |
+| | <https://jira.fd.io/browse/CSIT-1834>`_ | |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-| 7 | `CSIT-1593 | IPv4 AVF 9000B packet tests are failing on 3n-skx while passing on 2n-skx. |
-| | <https://jira.fd.io/browse/CSIT-1593>`_ | |
+| 2 | `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>`_ | |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-| 8 | `CSIT-1675 | Intel Xeon 2n-skx, 3n-skx and 2n-clx testbeds behaviour and performance became inconsistent following |
-| | <https://jira.fd.io/browse/CSIT-1675>`_ | the upgrade to the latest Ubuntu 18.04 LTS kernel version (4.15.0-72-generic) and associated microcode |
-| | | packages (skx ucode 0x2000064, clx ucode 0x500002c). VPP as well as DPDK L3fwd tests are affected. |
+| 3 | `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. |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+.. _vpp_rca:
+
+Root Cause Analysis for Performance Changes
+-------------------------------------------
+
+List of RCAs in |csit-release| for VPP performance changes:
+
++----+-----------------------------------------+-------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+=========================================+=====================================================================================+
+| 1 | `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. |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+
+| 2 | `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. |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+
+| 3 | `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. |
++----+-----------------------------------------+-------------------------------------------------------------------------------------+