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-rw-r--r--docs/report/vpp_performance_tests/csit_release_notes.rst108
1 files changed, 82 insertions, 26 deletions
diff --git a/docs/report/vpp_performance_tests/csit_release_notes.rst b/docs/report/vpp_performance_tests/csit_release_notes.rst
index 0a5d25e6b6..782fa42840 100644
--- a/docs/report/vpp_performance_tests/csit_release_notes.rst
+++ b/docs/report/vpp_performance_tests/csit_release_notes.rst
@@ -4,45 +4,95 @@ CSIT Release Notes
Changes in CSIT |release|
-------------------------
-#. VPP performance test environment changes
+#. Test environment changes in VPP data plane performance tests:
- - Further optimizations of VM and vhost-user test environment - various
- Qemu virtio queue size testing with value of 256 and 1024. Applied
- Linux CFS optimization to run VPP worker threads and Qemu worker threads
- with highest priority.
+ - Further characterization and optimizations of VPP vhost-user and VM
+ test methodology and test environment;
-#. VPP performance test framework changes
+ - Tests with varying Qemu virtio queue (a.k.a. vring) sizes:
+ [vr256] default 256 descriptors, [vr1024] 1024 descriptors to
+ optimize for packet throughput;
- - Full code review, optimization and refactor.
+ - Tests with varying Linux CFS (Completely Fair Scheduler)
+ settings: [cfs] default settings, [cfsrr1] CFS RoundRobin(1)
+ policy applied to all data plane threads handling test packet
+ path including all VPP worker threads and all Qemu testpmd
+ poll-mode threads;
-#. T-rex changes
+ - Resulting test cases are all combinations with [vr256,vr1024] and
+ [cfs,cfsrr1] settings;
- - Full refactor of T-rex driver and introduce of traffic profiles that
- improves readability, manageability of traffic profiles for various
- test scenarios.
+ - For more detail see performance results observations section in
+ this report;
+
+#. Code updates and optimizations in CSIT performance framework:
+
+ - Complete CSIT framework code revision and optimizations as descried
+ on CSIT wiki page
+ `Design_Optimizations <https://wiki.fd.io/view/CSIT/Design_Optimizations>`_.
+
+ - For more detail see the CSIT Framework Design section in this
+ report;
+
+#. Changes to CSIT driver for TRex Traffic Generator:
+
+ - Complete refactor of TRex CSIT driver;
+
+ - Introduction of packet traffic profiles to improve usability and
+ manageability of traffic profiles for a growing number of test
+ scenarios.
+
+ - Support for packet traffic profiles to test IPv4/IPv6 stateful and
+ stateless DUT data plane features;
#. Added VPP performance tests
- - **LXC memif**
+ - **Linux Container VPP memif virtual interface tests**
- - Memif interface tests interconnecting two VPP instances on single SUT.
- Master VPP instance running on native OS with Intel x520 NIC and guest
- VPP instance running in Linux Container (LXC) doing the L2 cross
- connect loop. LXC running in privileged mode is pinned to dedicated
- cores. All VPP instances are same version.
+ - VPP Memif virtual interface (shared memory interface) tests
+ interconnecting VPP instances over memif. VPP vswitch
+ instance runs in bare-metal user-mode handling Intel x520 NIC
+ 10GbE interfaces and connecting over memif (Master side) virtual
+ interfaces to another instance of VPP running in bare-metal Linux
+ Container (LXC) with memif virtual interfaces (Slave side). LXC
+ runs in a priviliged mode with VPP data plane worker threads
+ pinned to dedicated physical CPU cores per usual CSIT practice.
+ Both VPP run the same version of software. This test topology is
+ equivalent to existing tests with vhost-user and VMs.
- **Stateful Security Groups**
- - **VM vhost use cases**
+ - New tests of VPP stateful security-groups a.k.a. acl-plugin
+ functionally compatible with networking-vpp OpenStack;
+
+ - New tested security-groups access-control-lists (acl)
+ configuration variants include: [iaclNsl] input acl stateless,
+ [oaclNsl] output acl stateless, [iaclNsf] input acl stateful
+ a.k.a. reflect, [oaclNsf] output acl stateful a.k.a. reflect,
+ where N is number of access-control-entries (ace) in the acl.
+
+ - Testing packet flows transmitted by TG: 100, 10k, 100k, always
+ hitting the last permit entry in acl.
+
+ - **VPP vhost and VM tests**
+
+ - New VPP vhost-user and VM test cases to benchmark performance of
+ VPP and VM topologies with Qemu and CFS policy combinations of
+ [vr256,vr1024] x [cfs,cfsrr1];
+
+ - Statistical analysis of repeatibility of results;
Performance Improvements
------------------------
Substantial improvements in measured packet throughput have been
observed in a number of CSIT |release| tests listed below, with relative
-increase of double-digit percentage points. Relative improvements are
-calculated against the test results listed in CSIT |release-1| report.
-VPP-16.09 numbers are provided for reference.
+increase of double-digit percentage points. Relative improvements for
+this release are calculated against the test results listed in CSIT
+|release-1| report. The comparison is calculated between the mean values
+based on collected and archived test results' samples for involved VPP
+releases. Standard deviation has been also listed for CSIT |release|.
+VPP-16.09 and VPP-17.01 numbers are provided for reference.
NDR Throughput
~~~~~~~~~~~~~~
@@ -105,21 +155,27 @@ Here is the list of known issues in CSIT |release| for VPP performance tests:
+---+-------------------------------------------------+------------+-----------------------------------------------------------------+
| # | Issue | Jira ID | Description |
+---+-------------------------------------------------+------------+-----------------------------------------------------------------+
-| 1 | NDR discovery test failures 1518B frame size | VPP-663 | VPP reporting errors: dpdk-input Rx ip checksum errors. |
+| 1 | Security-groups acl-plugin scale tests failure | CSIT-xxx | VPP with 2 worker threads crashes during security-groups |
+| | with stateful acls if VPP with 2 worker threads | VPP-912 | iaclNsf and oaclNsf tests with 100k flows. |
++---+-------------------------------------------------+------------+-----------------------------------------------------------------+
+| 2 | VPP fails memif tests in 4 worker 2 core setup | CSIT-xxx | VPP with 4 worker threads running on 2 physical cores crashes |
+| | | VPP-xxx | during memif tests. Initial debugging points to DPDK code |
++---+-------------------------------------------------+------------+-----------------------------------------------------------------+
+| X | NDR discovery test failures 1518B frame size | VPP-663 | VPP reporting errors: dpdk-input Rx ip checksum errors. |
| | for ip4scale200k, ip4scale2m scale IPv4 routed- | | Observed frequency: all test runs. |
| | forwarding tests. ip4scale20k tests are fine. | | |
+---+-------------------------------------------------+------------+-----------------------------------------------------------------+
-| 2 | Vic1385 and Vic1227 low performance. | VPP-664 | Low NDR performance. |
+| X | Vic1385 and Vic1227 low performance. | VPP-664 | Low NDR performance. |
| | | | |
+---+-------------------------------------------------+------------+-----------------------------------------------------------------+
-| 3 | Sporadic NDR discovery test failures on x520. | CSIT-750 | Suspected issue with HW settings (BIOS, FW) in LF |
+| X | Sporadic NDR discovery test failures on x520. | CSIT-750 | Suspected issue with HW settings (BIOS, FW) in LF |
| | | | infrastructure. Issue can't be replicated outside LF. |
+---+-------------------------------------------------+------------+-----------------------------------------------------------------+
-| 4 | VPP in 2t2c setups - large variation | CSIT-568 | Suspected NIC firmware or DPDK driver issue affecting NDR |
+| X | VPP in 2t2c setups - large variation | CSIT-568 | Suspected NIC firmware or DPDK driver issue affecting NDR |
| | of discovered NDR throughput values across | | throughput. Applies to XL710 and X710 NICs, x520 NICs are fine. |
| | multiple test runs with xl710 and x710 NICs. | | |
+---+-------------------------------------------------+------------+-----------------------------------------------------------------+
-| 5 | Lower than expected NDR and PDR throughput with | CSIT-569 | Suspected NIC firmware or DPDK driver issue affecting NDR and |
+| X | Lower than expected NDR and PDR throughput with | CSIT-569 | 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. |
+---+-------------------------------------------------+------------+-----------------------------------------------------------------+