1 .. _vpp_performance_tests_release_notes:
6 Changes in |csit-release|
7 -------------------------
9 #. VPP PERFORMANCE TESTS
11 - **Added new performance testbed 3n-snr** (3 Node SnowRidge, with Intel
12 Atom processors), to later replace 3n-dnv and 2n-dnv (3 and 2 Node
15 - **Added GTPU HW offload tests** for Intel e810 4p25ge NICs on 2n-icx
18 - **Added Wireguard tests** for VPP software path (3n-icx, 3n-snr
19 testbeds) and with built-in HW crypto QAT device (3n-snr testbed
22 - **Reduction of tests**: Removed certain test variations executed
23 iteratively for the report (as well as in daily and weekly
24 trending) due to physical testbeds overload.
28 - **CSIT test environment** version has been updated to ver. 11, see
29 :ref:`test_environment_versioning`.
31 - **TCP tput profiles** have to be changed, as newer TRex versions
32 are not deterministic enough when deciding when to send an ACK.
34 - **CSIT PAPI support**: Due to issues with PAPI performance, and
35 deprecation of VAT, VPP CLI is used in CSIT for many VPP scale
36 tests. See :ref:`vpp_known_issues`.
38 - **General Code Housekeeping**: Ongoing code optimizations and bug
41 #. PRESENTATION AND ANALYTICS LAYER
43 - **C-Dash** `performance dashboard <http://csit.fd.io/>`_ got updated UI and
44 updated backend increasing its performance and robustness.
58 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
59 | # | JiraID | Issue Description |
60 +====+=========================================+===========================================================================================================+
62 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
67 Issues reported in previous releases which still affect the current results.
69 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
70 | # | JiraID | Issue Description |
71 +====+=========================================+===========================================================================================================+
72 | 1 | `CSIT-1671 | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much |
73 | | <https://jira.fd.io/browse/CSIT-1671>`_ | longer to program VPP). This needs to be addressed on the PAPI side. |
74 | +-----------------------------------------+ Currently, the time critical code uses VAT running large files with exec statements and CLI commands. |
75 | | `VPP-1763 | Still, we needed to reduce the number of scale tests run to keep overall duration reasonable. |
76 | | <https://jira.fd.io/browse/VPP-1763>`_ | More improvements needed to achieve sufficient configuration speed. |
77 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
78 | 2 | `CSIT-1782 | Multicore AVF tests are failing when trying to create interface. |
79 | | <https://jira.fd.io/browse/CSIT-1782>`_ | Frequency is reduced by CSIT workaround, but occasional failures do still happen. |
80 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
81 | 3 | `CSIT-1785 | NAT44ED tests failing to establish all TCP sessions. |
82 | | <https://jira.fd.io/browse/CSIT-1785>`_ | At least for max scale, in allotted time (limited by session 500s timeout) due to worse |
83 | +-----------------------------------------+ slow path performance than previously measured and calibrated for. |
84 | | `VPP-1972 | CSIT removed the max scale NAT tests to avoid this issue. |
85 | | <https://jira.fd.io/browse/VPP-1972>`_ | |
86 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
87 | 4 | `CSIT-1799 | All NAT44-ED 16M scale tests fail while setting NAT44 address range. |
88 | | <https://jira.fd.io/browse/CSIT-1799>`_ | |
89 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
90 | 5 | `CSIT-1800 | All Geneve L3 mode scale tests (1024 tunnels) are failing. |
91 | | <https://jira.fd.io/browse/CSIT-1800>`_ | |
92 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
93 | 6 | `CSIT-1801 | 9000B payload frames not forwarded over tunnels due to violating supported Max Frame Size (VxLAN, LISP, |
94 | | <https://jira.fd.io/browse/CSIT-1801>`_ | SRv6). |
95 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
96 | 7 | `CSIT-1802 | AF-XDP - NDR tests failing from time to time. |
97 | | <https://jira.fd.io/browse/CSIT-1802>`_ | |
98 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
99 | 8 | `CSIT-1803 | 3n-icx testbeds (Icelake): all IMIX aes128cbc-hmac512sha tests are failing due to excessive packet loss. |
100 | | <https://jira.fd.io/browse/CSIT-1803>`_ | |
101 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
102 | 9 | `CSIT-1804 | 3n-tsh, 3n-alt testbed (Taishan, Altra): NDR tests failing from time to time. |
103 | | <https://jira.fd.io/browse/CSIT-1804>`_ | |
104 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
105 | 10 | `CSIT-1808 | All tests with 9000B payload frames not forwarded over memif interfaces. |
106 | | <https://jira.fd.io/browse/CSIT-1808>`_ | |
107 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
108 | 11 | `CSIT-1809 | All tests with 9000B payload frames not forwarded over vhostuser interfaces. |
109 | | <https://jira.fd.io/browse/CSIT-1809>`_ | |
110 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
111 | 12 | `CSIT-1812 | All IMIX NAT44DET 4m 16m scale tests fail due to not creating required session count. |
112 | | <https://jira.fd.io/browse/CSIT-1812>`_ | |
113 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
114 | 13 | `CSIT-1827 | 3n-icx, 3n-skx: all AVF crypto tests sporadically fail. 1518B with no traffic, IMIX with excessive |
115 | | <https://jira.fd.io/browse/CSIT-1827>`_ | packet loss. |
116 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
117 | 14 | `CSIT-1830 | All testbeds: All TCP tput (and pps) tests are failing for small packets. |
118 | | <https://jira.fd.io/browse/CSIT-1830>`_ | |
119 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
120 | 15 | `CSIT-1832 | 3n-alt: NDR 1 packet lost on random tests. |
121 | | <https://jira.fd.io/browse/CSIT-1832>`_ | |
122 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
123 | 16 | `CSIT-1834 | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch. |
124 | | <https://jira.fd.io/browse/CSIT-1834>`_ | |
125 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
126 | 17 | `CSIT-1847 | 2n-skx: all 10vm-1t test failed with half of packets dropped. |
127 | | <https://jira.fd.io/browse/CSIT-1847>`_ | |
128 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
129 | 18 | `CSIT-1849 | 2n-skx: UDP 16m tput tests fail to create all sessions. |
130 | | <https://jira.fd.io/browse/CSIT-1849>`_ | |
131 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
136 Issues reported in previous releases which were fixed in this release:
138 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
139 | # | JiraID | Issue Description |
140 +====+=========================================+===========================================================================================================+
141 | 16 | `CSIT-1834 | 2n-icx, 2n-skx: sporadic AVF soak tests failing to find critical load with PLRsearch. |
142 | | <https://jira.fd.io/browse/CSIT-1834>`_ | |
143 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
144 | 1 | `CSIT-1846 | 2n-skx, 2n-clx, 2n-icx: ALL 1518B TCP tput tests failing with big packet loss. |
145 | | <https://jira.fd.io/browse/CSIT-1846>`_ | |
146 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
147 | 2 | `CSIT-1851 | trending regression: various icelake tests around 2202-04-15 |
148 | | <https://jira.fd.io/browse/CSIT-1851>`_ | Somewhat expected consequence of a VPP usability fix, |
149 | | | the previous VPP compiler version was too new for the OS used. |
150 +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
154 Root Cause Analysis for Performance Changes
155 -------------------------------------------
157 List of RCAs in |csit-release| for VPP performance changes:
159 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
160 | # | JiraID | Issue Description |
161 +====+=========================================+=====================================================================================+
162 | 1 | `VPP-2030 | regression: ip6base on ICX around 2022-03-23 |
163 | | <https://jira.fd.io/browse/VPP-2030>`_ | "Loads blocked due to overlapping with a preceding store that cannot be forwarded." |
164 | | | started happening in ip6-lookup graph node. |
165 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
166 | 2 | `CSIT-1852 | 2n-zn2 mellanox performance cap |
167 | | <https://jira.fd.io/browse/CSIT-1852>`_ | Old issue, only now distinguished from CSIT-1751. |
168 | | | This testbed+nic combination is capped below 28 Mpps, cause not identified yet. |
169 +----+-----------------------------------------+-------------------------------------------------------------------------------------+
170 | 3 | `CSIT-1853 | trending regression: nat44ed cps around 2202-04-01 |
171 | | <https://jira.fd.io/browse/CSIT-1853>`_ | VPP change added more computation to slow path (in order to support multiple VRFs). |
172 | | | Not clear if the VPP implementation is optimized enough. |
173 +----+-----------------------------------------+-------------------------------------------------------------------------------------+