Release Notes ============= Changes in |csit-release| ------------------------- #. VPP PERFORMANCE TESTS - CSIT test environment is versioned, see :ref:`test_environment_versioning`. - **GENEVE tests**: Added VPP performance tests for GENEVE tunnels. - See :ref:`geneve_methodology` for more details. - **NAT44 tests**: Added new test type, pure throughput tests. They are similar to PPS tests, but they employ ramp-up trials to ensure all sessions are created (and not timing out) for performance trials. - **Jumbo for ipsec**: Test cases with 9000 byte frames are re-enabled in ipsec suites. - **Randomized profiles**: Improved repeatability and cycle length. For details, see :ref:`packet_flow_ordering`. - **Arm 2n-tx2 testbed**: New physical testbed type installed in FD.io CSIT, with VPP and DPDK performance data added to CSIT trending and this report. - **Framework speedup**: Shortened overall test job duration by using a different test selection mechanism (using --test instead of --include) and by avoiding unnecessary PAPI reconnects. #. TEST FRAMEWORK - **TRex ASTF**: Improved capability to run TRex in advanced stateful mode. - **CSIT PAPI support**: Due to issues with PAPI performance, VAT is still used in CSIT for all VPP scale tests. See known issues below. - **General Code Housekeeping**: Ongoing code optimizations, speed ups and bug fixes. #. PRESENTATION AND ANALYTICS LAYER - **Graphs improvements**: Updated Packet Latency graphs, see :ref:`latency_methodology`. .. raw:: latex \clearpage .. _vpp_known_issues: Known Issues ------------ List of known issues in |csit-release| for VPP performance tests: +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | # | JiraID | Issue Description | +====+=========================================+===========================================================================================================+ | 1 | `CSIT-570 | Sporadic (1 in 200) NDR discovery test failures on x520. DPDK reporting rx-errors, indicating L1 issue. | | | `_ | Suspected issue with HW combination of X710-X520 in LF testbeds. Not observed outside of LF testbeds. | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | 2 | `VPP-662 | 9000B packets not supported by NICs VIC1227 and VIC1387. | | | `_ | | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | 3 | `CSIT-1763 | Adapt ramp-up phase of nat44 tests for different frame sizes. | | | `_ | Currently ramp-up phase rate and duration values are correctly set for tests with 64B frame size. | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | 4 | `CSIT-1671 | All CSIT scale tests can not use PAPI due to much slower performance compared to VAT/CLI (it takes much | | | `_ | longer to program VPP). This needs to be addressed on the PAPI side. | | +-----------------------------------------+ The usual PAPI library spends too much time parsing arguments, so even with async processing (hundreds of | | | `VPP-1763 | commands in flight over socket), the VPP configuration for large scale tests (millions of messages) takes | | | `_ | too long. | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | 5 | `VPP-1934 | [i40e] Interfaces are not brought up from carrier-down. | | | `_ | In case of i40e -based interface (e.g Intel x700 series NIC) is bound to kernel driver (i40e) and is in | | | | state "no-carrier" () because previously it was disabled via | | | | "I40E_AQ_PHY_LINK_ENABLED" call, then VPP during initialization of AVF interface is not re-enabling | | | | interface link via i40e driver to up. | | | | CSIT implemented `workaround for AVF interface `_ until fixed. | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ Root Cause Analysis for Performance Changes ------------------------------------------- List of RCAs in |csit-release| for VPP performance changes: +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ | # | JiraID | Issue Description | +====+=========================================+===========================================================================================================+ | 1 | `VPP-1972 | One VPP change has decreased performance of NAT44ed processing, both slow path and fast path. | | | ` | | +----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+