1 .. _vpp_performance_tests_release_notes:
6 Changes in |csit-release|
7 -------------------------
9 #. VPP PERFORMANCE TESTS
11 - **AF_XDP**: Added af_xdp driver support for all test cases. Test
12 results will be added in sub-sequent CSIT-2106 report.
14 - **GTPU tunnel**: Added GTPU HW Offload IPv4 routing tests.
16 - **Intel Xeon Ice Lake**: Added initial test data for these
17 platforms. Current CSIT-2106 report data for Intel Xeon Ice Lake
18 comes from an external source (Intel labs running CSIT code on
19 "8360Y D Stepping" and "6338N" processors). For details about the
20 physical setup see :ref:`tested_physical_topologies`. Tested
21 VPP and CSIT versions are pre-release, VPP
22 21.06-rc0~779-gd640ae52f.
24 - **MLRsearch improvements**: Added support for multiple packet
25 throughput rates in a single search, each rate is associated
26 with a distinct Packet Loss Ratio (PLR) criterion. Previously
27 only Non Drop Rate (NDR) (PLR=0) and single Partial Drop Rate
28 (PDR) (PLR<0.5%) were supported. Implemented number of
29 optimizations improving rate discovery efficiency.
31 - **Reduction of tests**: Removed obsolete VPP use cases and
32 superfluous test combinations from continuous and report test
33 executions, including:
35 - All vts tests, obsolete use cases.
36 - dot1q tests apart from dot1q-l2bd, superfluous combinations.
37 - -100flows, -100kflows in all acl tests.
40 - -pps tests, replaced by -tput tests.
41 - h1-p1-s1 single session tests, unessential combination.
42 - h4096-p63-s258048 tests, unessential scale combination.
46 - ethip4ipsectptlispgpe.
48 - policy-aes128cbc-hmac256sha.
49 - policy-aes128cbc-hmac512sha.
50 - int-aes128cbc-hmac256sha.
60 - **Telemetry retouch**: Refactored telemetry retrieval from DUTs and
61 SUTs. Included VPP perfmon plugin telemetry with all perfmon
62 bundles available in VPP release.
64 - **Upgrade to Ubuntu 20.04 LTS**: Re-installed base operating system
65 to Ubuntu 20.04.2 LTS. Upgrade included also baseline Docker
66 containers used for spawning topology.
68 - **CSIT test environment** version has been updated to ver. 7, see
69 :ref:`test_environment_versioning`.
71 - **CSIT in AWS environment**: Added CSIT support for AWS c5n
72 instances environment. Test results will be added in sub-sequent
75 - **CSIT PAPI support**: Due to issues with PAPI performance, VAT is
76 still used in CSIT for all VPP scale tests. See known issues
79 - **General Code Housekeeping**: Ongoing code optimizations and bug
82 #. PRESENTATION AND ANALYTICS LAYER
84 - **Graphs improvements**: Updated Packet Latency graphs,
85 see :ref:`latency_methodology`.
96 List of known issues in |csit-release| for VPP performance tests:
98 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
99 | # | JiraID | Issue Description |
100 +====+=========================================+===========================================================================================================+
101 | 1 | `CSIT-1782 | Multicore AVF tests are failing when trying to create interface. |
102 | | <https://jira.fd.io/browse/CSIT-1782>`_ | |
103 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
104 | 2 | `CSIT-1763 | Adapt ramp-up phase of nat44 tests for different frame sizes. |
105 | | <https://jira.fd.io/browse/CSIT-1763>`_ | Currently ramp-up phase rate and duration values are correctly set for tests with 64B frame size. |
106 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
107 | 3 | `CSIT-1671 | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much |
108 | | <https://jira.fd.io/browse/CSIT-1671>`_ | longer to program VPP). This needs to be addressed on the PAPI side. |
109 | +-----------------------------------------+ The usual PAPI library spends too much time parsing arguments, so even with async processing (hundreds of |
110 | | `VPP-1763 | commands in flight over socket), the VPP configuration for large scale tests (millions of messages) takes |
111 | | <https://jira.fd.io/browse/VPP-1763>`_ | too long. |
112 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
113 | 4 | `CSIT-1789 | AVF driver does not perform RSS in a deterministic way. |
114 | | <https://jira.fd.io/browse/CSIT-1789>`_ | This increases standard deviation of tests with small number of flows (mainly ipsec). |
115 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
118 Root Cause Analysis for Performance Changes
119 -------------------------------------------
121 List of RCAs in |csit-release| for VPP performance changes:
123 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
124 | # | JiraID | Issue Description |
125 +====+=========================================+===========================================================================================================+
126 | 1 | `VPP-1972 | One VPP change has decreased performance of NAT44ed processing, both slow path and fast path. |
127 | | <https://jira.fd.io/browse/VPP-1972>`_ | |
128 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+