X-Git-Url: https://gerrit.fd.io/r/gitweb?p=csit.git;a=blobdiff_plain;f=docs%2Freport%2Fvpp_performance_tests%2Fcsit_release_notes.rst;h=377bd30d3fc957a47f9d43d561ee2928e6850a4e;hp=74517c30643d995d0ca499919bf7bb7f18c147f3;hb=0189b942c60c000917639178f390fdc3bbcd574d;hpb=7c3ca2753db85af1b71f4c35bcef4f826f60b5f0 diff --git a/docs/report/vpp_performance_tests/csit_release_notes.rst b/docs/report/vpp_performance_tests/csit_release_notes.rst index 74517c3064..52ce2ef09e 100644 --- a/docs/report/vpp_performance_tests/csit_release_notes.rst +++ b/docs/report/vpp_performance_tests/csit_release_notes.rst @@ -1,124 +1,164 @@ -CSIT Release Notes -================== - -Changes in CSIT |release| -------------------------- - -#. **Added VPP performance tests** - - - **MRR tests** : New MRR tests measure the packet forwarding rate - under the maximum load offered by traffic generator over a set - trial duration, regardless of packet loss. Maximum load for - specified Ethernet frame size is set to the bi-directional link - rate. MRR tests are used for continuous performance trending and - for comparison between releases. - - - **SRv6** : Initial SRv6 (Segment Routing IPv6) tests verifying - performance of IPv6 and SRH (Segment Routing Header) - encapsulation, decapsulation, lookups and rewrites based on - configured End and End.DX6 SRv6 egress functions. - -#. **Presentation and Analytics Layer (PAL)** - - - Added continuous performance measuring, trending and anomaly - detection. Includes new PAL code and Jenkins jobs for Performance - Trending (PT) and Performance Analysis (PA) producing performance - trending dashboard and trendline graphs with summary and drill- - down views across all specified tests that can be reviewed and - inspected regularly by FD.io developers and users community. - -#. **Test Framework Optimizations** - - - **Performance tests efficiency** : Qemu build/install - optimizations, warmup phase handling, vpp restart handling. - Resulted in improved stability and reduced total execution time by - 30% for single pkt size e.g. 64B/78B. - - - **General code housekeeping** : ongoing RF keywords - optimizations, removal of redundant RF keywords. - -Performance Changes -------------------- - -Relative performance changes in measured packet throughput in CSIT -|release| are calculated against the results from CSIT |release-1| -report. Listed mean and standard deviation values are computed based on -a series of the same tests executed against respective VPP releases to -verify test results repeatibility, with percentage change calculated for -mean values. Note that the standard deviation is quite high for a small -number of packet throughput tests, what indicates poor test results -repeatability and makes the relative change of mean throughput value not -fully representative for these tests. The root causes behind poor -results repeatibility vary between the test cases. - -NDR Throughput Changes -~~~~~~~~~~~~~~~~~~~~~~ - -NDR small packet throughput changes between releases are available in a CSV and -pretty ASCII formats: - - - `csv format for 1t1c <../_static/vpp/performance-changes-ndr-1t1c-full.csv>`_, - - `csv format for 2t2c <../_static/vpp/performance-changes-ndr-2t2c-full.csv>`_, - - `pretty ASCII format for 1t1c <../_static/vpp/performance-changes-ndr-1t1c-full.txt>`_, - - `pretty ASCII format for 2t2c <../_static/vpp/performance-changes-ndr-2t2c-full.txt>`_. - -PDR Throughput Changes -~~~~~~~~~~~~~~~~~~~~~~ - -NDR small packet throughput changes between releases are available in a CSV and -pretty ASCII formats: - - - `csv format for 1t1c <../_static/vpp/performance-changes-pdr-1t1c-full.csv>`_, - - `csv format for 2t2c <../_static/vpp/performance-changes-pdr-2t2c-full.csv>`_, - - `pretty ASCII format for 1t1c <../_static/vpp/performance-changes-pdr-1t1c-full.txt>`_, - - `pretty ASCII format for 2t2c <../_static/vpp/performance-changes-pdr-2t2c-full.txt>`_. - -Measured improvements are in line with VPP code optimizations listed in -`VPP-18.01 release notes -`_. - -MRR Throughput Changes -~~~~~~~~~~~~~~~~~~~~~~ - -MRR changes between releases are available in a CSV and -pretty ASCII formats: - - - `csv format for 1t1c <../_static/vpp/performance-changes-mrr-1t1c-full.csv>`_, - - `csv format for 2t2c <../_static/vpp/performance-changes-mrr-2t2c-full.csv>`_, - - `csv format for 4t4c <../_static/vpp/performance-changes-mrr-4t4c-full.csv>`_, - - `pretty ASCII format for 1t1c <../_static/vpp/performance-changes-mrr-1t1c-full.txt>`_, - - `pretty ASCII format for 2t2c <../_static/vpp/performance-changes-mrr-2t2c-full.txt>`_, - - `pretty ASCII format for 4t4c <../_static/vpp/performance-changes-mrr-4t4c-full.txt>`_. - -Known Issues ------------- - - - -Here is the list of known issues in CSIT |release| for VPP performance tests: - -+---+-------------------------------------------------+------------+-----------------------------------------------------------------+ -| # | Issue | Jira ID | Description | -+---+-------------------------------------------------+------------+-----------------------------------------------------------------+ -| 1 | Vic1385 and Vic1227 low performance. | VPP-664 | Low NDR performance. | -| | | | | -+---+-------------------------------------------------+------------+-----------------------------------------------------------------+ -| 2 | Sporadic (1 in 200) NDR discovery test failures | CSIT-570 | DPDK reporting rx-errors, indicating L1 issue. Suspected issue | -| | on x520. | | with HW combination of X710-X520 in LF testbeds. Not observed | -| | | | outside of LF testbeds. | -+---+-------------------------------------------------+------------+-----------------------------------------------------------------+ -| 3 | Lower than expected NDR throughput with | CSIT-571 | Suspected NIC firmware or DPDK driver issue affecting NDR and | -| | xl710 and x710 NICs, compared to x520 NICs. | | PDR throughput. Applies to XL710 and X710 NICs. | -+---+-------------------------------------------------+------------+-----------------------------------------------------------------+ -| 4 | rls1801 plugin related performance regression | CSIT-925 | With all plugins loaded NDR, PDR and MaxRates vary | -| | | | intermittently from 3% to 5% across multiple test executions. | -| | | | Requires plugin code bisecting. | -+---+-------------------------------------------------+------------+-----------------------------------------------------------------+ -| 5 | rls1801 generic small performance regression | CSIT-926 | Generic performance regression of discovered NDR, PDR and | -| | ip4base, l2xcbase, l2bdbase | | MaxRates of -3%..-1% vs. rls1710, affects ip4base, l2xcbase, | -| | | | l2bdbase test suites. Not detected by CSIT performance trending | -| | | | scheme as it was masked out by another issue CSIT-925. | -+---+-------------------------------------------------+------------+-----------------------------------------------------------------+ -| 6 | rls1801 substantial NDR/PDR regression for | CSIT-928 | NDR regression of -7%..-15%, PDR regression of -3%..-15% | -| | IPSec tunnel scale with HW QAT crypto-dev | | compared to rls1710. | -+---+-------------------------------------------------+------------+-----------------------------------------------------------------+ +.. _vpp_performance_tests_release_notes: + +Release Notes +============= + +Changes in |csit-release| +------------------------- + +#. VPP PERFORMANCE TESTS + + - **Regressions with DPDK drivers**: Change from DPDK v21.08 to DPDK + v21.11 introduced regression across all tests using dpdk + drivers (with dpdk_plugin loaded). Compared to previous VPP + release performance drop varies in the range of -15% to -6%, + depending on test. It is related to updated MTU checks within + DPDK code and associated VPP code changes. See + `VPP v2202 release notes `_ + and :ref:`vpp_known_issues`. + + - **Number of CSIT 9000B frame tests failing**: tests with higher + encapsulation overhead are failing due to exceeding default + Ethernet Maximum Frame Size value that has been reduced by MTU + related VPP code changes. See + `VPP v2202 release notes `_ + and :ref:`vpp_known_issues`. + + - **Intel Xeon Ice Lake**: Performance test data for these platforms + is now provided by testbeds newly installed in FD.io CSIT labs. + For details about the physical setup see + :ref:`physical_testbeds_2n_icx` and + :ref:`physical_testbeds_3n_icx`. + + - **Reduction of tests**: Removed certain test variations executed + iteratively for the report (as well as in daily and weekly + trending) due to physical testbeds overload. + +#. TEST FRAMEWORK + + - **CSIT test environment** version has been updated to ver. 9, see + :ref:`test_environment_versioning`. + + - **CSIT PAPI support**: Due to issues with PAPI performance, and + deprecation of VAT, VPP CLI is used in CSIT for many VPP scale + tests. See :ref:`vpp_known_issues`. + + - **General Code Housekeeping**: Ongoing code optimizations 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 +------------ + +New +___ + ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| # | JiraID | Issue Description | ++====+=========================================+===========================================================================================================+ +| 1 | `CSIT-1799 | All NAT44-ED 16M scale tests fail while setting NAT44 address range. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 2 | `CSIT-1800 | All Geneve L3 mode scale tests (1024 tunnels) are failing. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 3 | `CSIT-1801 | 9000B payload frames not forwarded over tunnels due to violating supported Max Frame Size (VxLAN, LISP, | +| | `_ | SRv6). | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 4 | `CSIT-1808 | All tests with 9000B payload frames not forwarded over memif interfaces. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 5 | `CSIT-1809 | All tests with 9000B payload frames not forwarded over vhostuser interfaces. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 6 | `CSIT-1802 | AF-XDP - NDR tests failing from time to time. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 7 | `CSIT-1803 | 3n-icx testbeds (Icelake): all IMIX aes128cbc-hmac512sha tests are failing due to excessive packet loss. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 8 | `CSIT-1804 | 3n-tsh testbed (Taishan): NDR tests failing from time to time. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 9 | `CSIT-1805 | 3n-skx testbeds (Skylake): all hoststack quic vppecho scale tests are failing. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 10 | `CSIT-1806 | 3n-skx testbeds (Skylake): all LISP ip6-ip6 tests are failing due to 100% drops in one direction. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 11 | `CSIT-1810 | DPDK - performance regression with DPDK driver when Max Frame Size is set to less than 2023. | +| | `_ | | +| +-----------------------------------------+ | +| | `VPP-1876 | Worse performance with DPDK driver when MTU is set to 2022 or less. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ + + +Previous +________ + +Issues reported in previous releases which still affect the current results. + ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| # | JiraID | Issue Description | ++====+=========================================+===========================================================================================================+ +| 3 | `CSIT-1782 | Multicore AVF tests are failing when trying to create interface. | +| | `_ | Frequency is reduced by CSIT workaround, but occasional failures do still happen. | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 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. | +| +-----------------------------------------+ Currently, the time critical code uses VAT running large files with exec statements and CLI commands. | +| | `VPP-1763 | Still, we needed to reduce the number of scale tests run to keep overall duration reasonable. | +| | `_ | More improvements needed to achieve sufficient configuration speed. | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 5 | `CSIT-1789 | IPSEC SW async scheduler tests show bad behavior. | +| | `_ | VPP code is not behaving correctly when crypto workers are the bottleneck. | +| +-----------------------------------------+ | +| | `VPP-1998 | | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 6 | `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. | +| | `VPP-1972 | CSIT removed the max scale NAT tests to avoid this issue. | +| | `_ | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 7 | `CSIT-1791 | Performance regression in RDMA tests, due to CSIT environment changes. | +| | `_ | Two symptoms: 1. 10-20% regression across most tests. 2. DUT performance cap just below 38 Mpps. | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ + +Fixed +_____ + +Issues reported in previous releases which were fixed in this release: + ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| # | JiraID | Issue Description | ++====+=========================================+===========================================================================================================+ +| 1 | `CSIT-1789 | AVF driver does not perform RSS in a deterministic way. | +| | `_ | VPP now uses the same RSS key with AVF driver as with DPDK driver. | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ +| 2 | `CSIT-1786 | IP4 and IP6 scale tests failing with no traffic forwarded. | +| | `_ | CSIT replaced the old single VAT command by file full of "exec" CLI commands executed by VAT. | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+ + +Root Cause Analysis for Performance Changes +------------------------------------------- + +List of RCAs in |csit-release| for VPP performance changes: + ++----+-----------------------------------------+------------------------------------------------------------+ +| # | JiraID | Issue Description | ++====+=========================================+============================================================+ +| 0 | | To be updated when descriptions in Jira tickets are ready. | ++----+-----------------------------------------+------------------------------------------------------------+