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=eff392d9fab76c59d392cdb940cbe8c9afd52a27;hp=74517c30643d995d0ca499919bf7bb7f18c147f3;hb=2a5ecb6c130109828210eb7135a8fa4d6a0f2c80;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..eff392d9fa 100644 --- a/docs/report/vpp_performance_tests/csit_release_notes.rst +++ b/docs/report/vpp_performance_tests/csit_release_notes.rst @@ -1,124 +1,103 @@ -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. | -+---+-------------------------------------------------+------------+-----------------------------------------------------------------+ +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. + + + - **GSO tests**: Added VPP performance tests for GSOtap and GSOvirtio. + All tested topologies are compared with GSO enabled and disabled. + In |csit-release| there is only 1t1c tests running. + See :ref:`gso_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. | +| | ` | | ++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+