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-rw-r--r--docs/report/vpp_performance_tests/csit_release_notes.rst11
1 files changed, 10 insertions, 1 deletions
diff --git a/docs/report/vpp_performance_tests/csit_release_notes.rst b/docs/report/vpp_performance_tests/csit_release_notes.rst
index 72fd0a1b61..f4e5f25d4c 100644
--- a/docs/report/vpp_performance_tests/csit_release_notes.rst
+++ b/docs/report/vpp_performance_tests/csit_release_notes.rst
@@ -65,6 +65,13 @@ Changes in |csit-release|
to Ubuntu 20.04.2 LTS. Upgrade included also baseline Docker
containers used for spawning topology.
+ - **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>`_.
+
- **CSIT test environment** version has been updated to ver. 7, see
:ref:`test_environment_versioning`.
@@ -113,7 +120,9 @@ List of known issues in |csit-release| for VPP performance tests:
| 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). |
+----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
-
+| 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. |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
Root Cause Analysis for Performance Changes
-------------------------------------------