Report: Update known issues
[csit.git] / docs / report / vpp_performance_tests / csit_release_notes.rst
index f4e5f25..b057af1 100644 (file)
@@ -8,83 +8,33 @@ 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.
+   - **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`.
 
-#. TEST FRAMEWORK
-
-   - **Telemetry retouch**: Refactored telemetry retrieval from DUTs and
-     SUTs. Included VPP perfmon plugin telemetry with all perfmon
-     bundles available in VPP release.
+   - **AWS EC2 c5n**: Performance test data for AWS c5n instances has
+     been added to report for ip4, ip6 and ipsec tests.
 
-   - **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.
+   - **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.
 
-   - **TRex upgrade v2.86 to v2.88**: Included move to DPDK 21.02 and
-     changed the way egress low latency queues are used in FVL NICs.
-     This broke latency measurements for majority of FVL NICs in
-     CSIT. Latency values look better after upgrading FVL FW on TRex
-     servers, but still somewhat higher than before the TRex upgrade.
-     Tracked by `CSIT-1790 <https://jira.fd.io/browse/CSIT-1790>`_.
+#. TEST FRAMEWORK
 
-   - **CSIT test environment** version has been updated to ver. 7, see
+   - **CSIT test environment** version has been updated to ver. 8, 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 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, VAT is
-     still used in CSIT for all VPP scale tests. See known issues
-     below.
+   - **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. 
+     fixes.
 
 #. PRESENTATION AND ANALYTICS LAYER
 
@@ -100,38 +50,68 @@ Changes in |csit-release|
 Known Issues
 ------------
 
-List of known issues in |csit-release| for VPP performance tests:
+Fixed
+_____
+
+Issues reported in previous releases which were fixed in this release:
 
 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 | #  | JiraID                                  | Issue Description                                                                                         |
 +====+=========================================+===========================================================================================================+
-|  1 | `CSIT-1782                              | Multicore AVF tests are failing when trying to create interface.                                          |
-|    | <https://jira.fd.io/browse/CSIT-1782>`_ |                                                                                                           |
 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-|  2 | `CSIT-1763                              | Adapt ramp-up phase of nat44 tests for different frame sizes.                                             |
-|    | <https://jira.fd.io/browse/CSIT-1763>`_ | Currently ramp-up phase rate and duration values are correctly set for tests with 64B frame size.         |
+|  1 | `CSIT-1789                              | AVF driver does not perform RSS in a deterministic way.                                                   |
+|    | <https://jira.fd.io/browse/CSIT-1789>`_ | 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.                                                |
+|    | <https://jira.fd.io/browse/CSIT-1786>`_ | CSIT replaced the old single VAT command by file full of "exec" CLI commands executed by VAT.             |
 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-|  3 | `CSIT-1671                              | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much   |
+
+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.                                          |
+|    | <https://jira.fd.io/browse/CSIT-1782>`_ | 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   |
 |    | <https://jira.fd.io/browse/CSIT-1671>`_ | 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 |
-|    | <https://jira.fd.io/browse/VPP-1763>`_  | too long.                                                                                                 |
+|    +-----------------------------------------+ 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.                                       |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+|  5 | `CSIT-1789                              | IPSEC SW async scheduler tests show bad behavior.                                                         |
+|    | <https://jira.fd.io/browse/CSIT-1789>`_ | VPP code is not behaving correctly when crypto workers are the bottleneck.                                |
+|    +-----------------------------------------+                                                                                                           |
+|  5 | `VPP-1998                               |                                                                                                           |
+|    | <https://jira.fd.io/browse/VPP-1998>`_  |                                                                                                           |
 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-|  4 | `CSIT-1789                              | AVF driver does not perform RSS in a deterministic way.                                                   |
-|    | <https://jira.fd.io/browse/CSIT-1789>`_ | This increases standard deviation of tests with small number of flows (mainly ipsec).                     |
+|  6 | `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>`_  |                                                                                                           |
 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-|  5 | `CSIT-1790                              | Broken TRex latency measurements with TRex v2.88, DPDK 21.02 and FVL FW 6.01.                             |
-|    | <https://jira.fd.io/browse/CSIT-1790>`_ | High latency O(5msec) for all VPP and testpmd/l3fwd test cases for FVL NICs with FW 6.01.                 |
+|  7 | `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.          |
 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
 
+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                                                                                         |
-+====+=========================================+===========================================================================================================+
-|  1 | `VPP-1972                               | One VPP change has decreased performance of NAT44ed processing, both slow path and fast path.             |
-|    | <https://jira.fd.io/browse/VPP-1972>`_  |                                                                                                           |
-+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
++----+-----------------------------------------+------------------------------------------------------------+
+| #  | JiraID                                  | Issue Description                                          |
++====+=========================================+============================================================+
+|  0 |                                         | To be updated when descriptions in Jira tickets are ready. |
++----+-----------------------------------------+------------------------------------------------------------+