Release Notes

Changes in CSIT-2302

1. VPP PERFORMANCE TESTS

   • Enhanced and added VPP hoststack tests to daily and weekly trending including: Quic VPP Echo, UDP+TCP LD_PRELOAD iPerf3, LD_PRELOAD NGINX.

   • Added Nvidia/Mellanox DPDK tests to daily and weekly trending and report, in addition to RDMA_CORE ones that were already there.

   • Jumbo frames tests got fixed and re-added number of to report coverage tests.

   • Intel Xeon SKX performance testbeds got decommissioned and removed from FD.io performance lab.

2. TEST FRAMEWORK

   • CSIT test environment version has not changed from ver. 11 used in previous release, see Environment Versioning.

   • CSIT PAPI optimizations for scale got applied improving PAPI programming speed especially for large scale tests. VAT has been now completely deprecated from CSIT.

   • General Code Housekeeping: Ongoing code optimizations and bug fixes.

3. PRESENTATION AND ANALYTICS LAYER

   • Performance dashboard got updated with addition of VPP telemetry trending across all VPP tests. A number of code and AWS resource usage optimizations got applied to the data processing pipeline and UI frontend and backend.

   • Examples of release iterative data visualisation:

     • Packet throughput 2n-icx-e810cq-ip4-base-scale-pdr

     • Speedup Multi-Core throughput graph for 2n-icx-e810cq-ip4-base-pdr

     • MRR, NDR and PDR comparison for 2n-icx-e810cq-ip4-base

     • Normalized throughput architecture comparison for 2n-[icx|clx]-e810cq-ip4-base-pdr

     • NICs comparison for 2n-icx-ip4-base-pdr

Known Issues

New

#	JiraID	Issue Description
1	VPP-2070	CSIT rdma 4c tests fail on 2n-zn2. Memory alignment issue caused by a recent VPP merge.
2	CSIT-1876	1n-aws: TRex NDR PDR ALL IP4 scale and L2 scale tests failing with 50% packet loss. AWS perhaps changed its policy.
3	CSIT-1901	3n-icx: negative ipackets on TB38 AVF 4c l2patch Hardware or TRex issue.

Previous

Issues reported in previous releases which still affect the current results.

#	JiraID	Issue Description
1	CSIT-1782	Multicore AVF tests are failing when trying to create interface. Frequency is reduced by CSIT workaround, but occasional failures do still happen.
2	CSIT-1785	NAT44ED tests failing to establish all TCP sessions. At least for max scale, in allotted time (limited by session 500s timeout) due to worse slow path performance than previously measured and calibrated for. CSIT removed the max scale NAT tests to avoid this issue.
	VPP-1972
3	CSIT-1798	Investigate why vhost with testpmd in VM has two-band structure. Probably QEMU not allocating memory on the correct NUMA socket.
4	CSIT-1800	All Geneve L3 mode scale tests (1024 tunnels) are failing.
5	CSIT-1801	9000B payload frames not forwarded over tunnels due to violating supported Max Frame Size (VxLAN, LISP, SRv6).
6	CSIT-1802	all testbeds: AF-XDP - NDR tests failing from time to time.
7	CSIT-1804	All testbeds: NDR tests failing from time to time.
8	CSIT-1808	All tests with 9000B payload frames not forwarded over memif interfaces.
9	CSIT-1890	3n-alt: Tests failing until 40Ge Interface comes up. A consequence of CSIT-1848 link slowness persisting over to other job runs.
10	CSIT-1849	2n-skx, 2n-clx, 2n-icx: UDP 16m TPUT tests fail to create all sessions.
11	CSIT-1864	2n-clx: half of the packets lost on PDR tests.
12	CSIT-1877	3n-tsh: all VM tests sometimes too slow to boot VM.
13	CSIT-1883	3n-snr: All hwasync wireguard tests failing when trying to verify device.
14	CSIT-1884	2n-clx, 2n-icx: All NAT44DET NDR PDR IMIX over 1M sessions BIDIR tests failing to create enough sessions.
15	CSIT-1886	3n-icx: Wireguard tests with 100 and more tunnels are failing PDR criteria.

Fixed

Issues reported in previous releases which were fixed in this release:

#	JiraID	Issue Description
1	CSIT-1799	All NAT44-ED 16M sessions CPS scale tests fail while setting NAT44 address range.
2	CSIT-1827	3n-icx, 3n-skx: all AVF crypto tests sporadically fail. 1518B with no traffic, IMIX with excessive packet loss.
3	CSIT-1835	3n-icx: QUIC vppecho BPS tests failing on timeout when checking hoststack finished.
4	CSIT-1885	3n-icx: 9000b ip4 ip6 l2 NDRPDR AVF tests are failing to forward traffic.

Root Cause Analysis for Performance Changes

List of RCAs in CSIT-2302 for VPP performance changes:

#	JiraID	Issue Description
1	CSIT-1902	3n-alt: Changed performance in VXLAN and IPsec tests.
2	VPP-2072	RSS is not deterministic on Intel-E822CQ NIC.