Report: GSO release notes
[csit.git] / docs / report / vpp_performance_tests / csit_release_notes.rst
index 8534aa1..eff392d 100644 (file)
@@ -6,43 +6,52 @@ Changes in |csit-release|
 
 #. VPP PERFORMANCE TESTS
 
-   - **Service density 2n-skx tests**: Added higher NF density tests with
-     802.1q (vlan) and 802.1ad (vxlan) encapsulation from Traffic Generator.
+   - CSIT test environment is versioned, see
+     :ref:`test_environment_versioning`.
 
-   - **GBP tests**: Added GBP routing test cases with 802.1q (vlan) external
-     traffic.
+   - **GENEVE tests**: Added VPP performance tests for GENEVE tunnels.
+     See :ref:`geneve_methodology` for more details.
 
-   - **AVF IPv4 scale tests**: Increased coverage of AVF IPv4 base and scale
-     test cases.
 
-   - **2n-skx tests**: Increased coverage of selected (COP, iACL, Policer)
-     test cases.
+   - **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.
 
-   - **IPsec scale tests**: Added IPsec interface mode scale tests with
-     1, 40, 400, 1000, 5000, 10000, 20000, 40000, 60000 tunnels. Removed DPDK
-     backend dependency.
 
-   - **Hoststack TCP tests**: Added Hoststack TCP performance tests
-     using WRK to the HTTP static server plugin measuring connections
-     per second and requests per second.
+   - **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
 
-   - **CSIT PAPI Support**: Finished conversion of CSIT VAT L1 keywords to
-     PAPI L1 KWs in CSIT using VPP Python bindings. Redesign of key components
-     of PAPI Executor and PAPI history. Currently the only exception is
-     usage of VAT command for scale configuration.
+   - **TRex ASTF**: Improved capability to run TRex in advanced stateful mode.
 
-   - **General Code Housekeeping**: Ongoing RF keywords optimizations,
-     removal of redundant RF keywords and aligning of suite/test
-     setup/teardowns.
+   - **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 Layout Improvements**: Improved performance graphs layout
-     for better readibility and maintenance: test grouping, axis
-     labels, descriptions, other informative decoration.
+   - **Graphs improvements**: Updated Packet Latency graphs,
+     see :ref:`latency_methodology`.
 
 .. raw:: latex
 
@@ -55,15 +64,40 @@ 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.  |
-|    | <https://jira.fd.io/browse/CSIT-570>`_  | Suspected issue with HW combination of X710-X520 in LF testbeds. Not observed outside of LF testbeds.    |
-+----+-----------------------------------------+----------------------------------------------------------------------------------------------------------+
-| 2  | `CSIT-1503                              | [`TRex-519 <https://trex-tgn.cisco.com/youtrack/issue/trex-519>`_] XL710/XXV710 with FW 6.0.1 will have  |
-|    | <https://jira.fd.io/browse/CSIT-1503>`_ | Rx drop rate of 27MPPS.                                                                                  |
-+----+-----------------------------------------+----------------------------------------------------------------------------------------------------------+
-| 3  | `CSIT-1499                              | AVF tests are sporadically failing on initialization of AVF interface.                                   |
-|    | <https://jira.fd.io/browse/CSIT-1499>`_ |                                                                                                          |
-+----+-----------------------------------------+----------------------------------------------------------------------------------------------------------+
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+| #  | JiraID                                  | Issue Description                                                                                         |
++====+=========================================+===========================================================================================================+
+|  1 | `CSIT-570                               | Sporadic (1 in 200) NDR discovery test failures on x520. DPDK reporting rx-errors, indicating L1 issue.   |
+|    | <https://jira.fd.io/browse/CSIT-570>`_  | 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.                                                  |
+|    | <https://jira.fd.io/browse/VPP-662>`_   |                                                                                                           |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+|  3 | `CSIT-1763                              | Adapt ramp-up phase of nat44 tests for different frame sizes.                                             |
+|    | <https://jira.fd.io/browse/CSIT-1763>`_ | 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   |
+|    | <https://jira.fd.io/browse/CSIT-1671>`_ | 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 |
+|    | <https://jira.fd.io/browse/VPP-1763>`_  | too long.                                                                                                 |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+
+|  5 | `VPP-1934                               | [i40e] Interfaces are not brought up from carrier-down.                                                   |
+|    | <https://jira.fd.io/browse/VPP-1934>`_  | In case of i40e -based interface (e.g Intel x700 series NIC) is bound to kernel driver (i40e) and is in   |
+|    |                                         | state "no-carrier" (<NO-CARRIER,BROADCAST,MULTICAST,UP>) 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 <https://gerrit.fd.io/r/c/csit/+/29086>`_ 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.             |
+|    | <https://jira.fd.io/browse/VPP-1972>`   |                                                                                                           |
++----+-----------------------------------------+-----------------------------------------------------------------------------------------------------------+