-CSIT Release Notes
-==================
+Release Notes
+=============
-Changes in CSIT |release|
+Changes in |csit-release|
-------------------------
-No code changes apart from bug fixes.
+#. DPDK PERFORMANCE TESTS
+
+ - **Intel Xeon 2n-skx, 3n-skx and 2n-clx testbeds**: Testpmd and
+ L3fwd 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) 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:`dpdk_known_issues`.
+
+..
+ // Alternative Note for 1st Bullet when bad microcode Skx, Clx results are published
+ - **Intel Xeon 2n-skx, 3n-skx and 2n-clx testbeds**: Testpmd and
+ L3fwd 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`.
+
+#. DPDK RELEASE VERSION CHANGE
+
+ - |csit-release| tested |dpdk-release|, as used by |vpp-release|.
+
+.. _dpdk_known_issues:
Known Issues
------------
-Here is the list of known issues in CSIT |release| for Testpmd performance tests:
-
-+---+---------------------------------------------------+------------+-----------------------------------------------------------------+
-| # | Issue | Jira ID | Description |
-+---+---------------------------------------------------+------------+-----------------------------------------------------------------+
-| 1 | Testpmd in 1t1c and 2t2c setups - large variation | CSIT-569 | Suspected NIC firmware or DPDK driver issue affecting NDR |
-| | of discovered NDR throughput values across | | throughput. Applies to XL710 and X710 NICs, no issues observed |
-| | multiple test runs with xl710 and x710 NICs. | | on x520 NICs. |
-+---+---------------------------------------------------+------------+-----------------------------------------------------------------+
-| 2 | Lower than expected NDR throughput with xl710 | CSIT-571 | Suspected NIC firmware or DPDK driver issue affecting NDR |
-| | and x710 NICs, compared to x520 NICs. | | throughput. Applies to XL710 and X710 NICs. |
-+---+---------------------------------------------------+------------+-----------------------------------------------------------------+
+List of known issues in |csit-release| for DPDK performance tests:
+
++----+------------------------------------------+----------------------------------------------------------------------------------------------------------+
+| # | JiraID | Issue Description |
++====+==========================================+==========================================================================================================+
+| 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. |
++----+------------------------------------------+----------------------------------------------------------------------------------------------------------+