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Release Notes
=============
Changes in |csit-release|
-------------------------
#. DPDK PERFORMANCE TESTS
- **Intel Xeon 2n-skx, 3n-skx 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) as part of updating Ubuntu 18.04
LTS kernel version. Tested VPP and DPDK applications (L3fwd) are
affected. Skx test data will be added in subsequent maintenance
report version(s) once the issue is resolved. See
:ref:`dpdk_known_issues`.
- **Intel Xeon 2n-clx testbeds**: DPDK performance test data is now
included in this report, after resolving the issue of lower
performance and behaviour inconsistency of these systems due to
the Linux kernel driven upgrade of processor microcode packages
to 0x500002c. The resolution is to use latest SuperMicro BIOS 3.2
(for X11DPG-QT motherboards used) that upgrades processor
microcode to 0x500002c, AND NOT kernel provided ucode package as
it does put THE system into sub-optimal state.
#. DPDK RELEASE VERSION CHANGE
- |csit-release| tested |dpdk-release|, as used by |vpp-release|.
#. TEST ENVIRONMENT
- **TRex Fortville NIC Performance**: Received FVL fix from Intel
resolving TRex low throughput issue. TRex per FVL NIC throughput
increased from ~27 Mpps to the nominal ~37 Mpps. For detail see
`CSIT-1503 <https://jira.fd.io/browse/CSIT-1503>`_ and `TRex-519
<https://trex-tgn.cisco.com/youtrack/issue/trex-519>`_].
- **New Intel Xeon Cascadelake Testbeds**: Added performance tests
for 2-Node-Cascadelake (2n-clx) testbeds with x710, xxv710 and
cx556a-edat NIC cards.
..
// 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_known_issues:
Known Issues
------------
List of known issues in |csit-release| for DPDK performance tests:
+----+------------------------------------------+----------------------------------------------------------------------------------------------------------+
| # | JiraID | Issue Description |
+====+==========================================+==========================================================================================================+
| 1 | `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. |
+----+------------------------------------------+----------------------------------------------------------------------------------------------------------+
|
