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diff --git a/docs/report/dpdk_performance_tests/overview.rst b/docs/report/dpdk_performance_tests/overview.rst deleted file mode 100644 index 7f3e930324..0000000000 --- a/docs/report/dpdk_performance_tests/overview.rst +++ /dev/null @@ -1,120 +0,0 @@ -Overview -======== - -DPDK performance test results are reported for all physical testbed types -present in FD.io labs and installed NIC models. For description of physical -testbeds used for DPDK performance tests please refer to -:ref:`tested_physical_topologies`. - -Logical Topologies ------------------- - -CSIT DPDK performance tests are executed on physical testbeds described -in :ref:`tested_physical_topologies`. Based on the packet path through -server SUTs, one distinct logical topology type is used for DPDK DUT -data plane testing: NIC-to-NIC switching topology. - -NIC-to-NIC Switching -~~~~~~~~~~~~~~~~~~~~ - -The simplest logical topology for software data plane application like -DPDK is NIC-to-NIC switching. Tested topologies for 2-Node and 3-Node -testbeds are shown in figures below. - -.. only:: latex - - .. raw:: latex - - \begin{figure}[H] - \centering - \graphicspath{{../_tmp/src/vpp_performance_tests/}} - \includegraphics[width=0.90\textwidth]{logical-2n-nic2nic} - \label{fig:logical-2n-nic2nic} - \end{figure} - -.. only:: html - - .. figure:: ../vpp_performance_tests/logical-2n-nic2nic.svg - :alt: logical-2n-nic2nic - :align: center - - -.. only:: latex - - .. raw:: latex - - \begin{figure}[H] - \centering - \graphicspath{{../_tmp/src/vpp_performance_tests/}} - \includegraphics[width=0.90\textwidth]{logical-3n-nic2nic} - \label{fig:logical-3n-nic2nic} - \end{figure} - -.. only:: html - - .. figure:: ../vpp_performance_tests/logical-3n-nic2nic.svg - :alt: logical-3n-nic2nic - :align: center - -Server Systems Under Test (SUT) run DPDK Testpmd or L3fwd application in -Linux user-mode as a Device Under Test (DUT). Server Traffic Generator -(TG) runs T-Rex application. Physical connectivity between SUTs and TG -is provided using different drivers and NIC models that need to be -tested for performance (packet/bandwidth throughput and latency). - -From SUT and DUT perspectives, all performance tests involve forwarding -packets between two physical Ethernet ports (10GE, 25GE, 40GE, 100GE). -In most cases both physical ports on SUT are located on the same -NIC. The only exceptions are link bonding and 100GE tests. In the latter -case only one port per NIC can be driven at linerate due to PCIe Gen3 -x16 slot bandwidth limiations. 100GE NICs are not supported in PCIe Gen3 -x8 slots. - -Note that reported DPDK DUT performance results are specific to the SUTs -tested. SUTs with other processors than the ones used in FD.io lab are -likely to yield different results. A good rule of thumb, that can be -applied to estimate DPDK packet thoughput for NIC-to-NIC switching -topology, is to expect the forwarding performance to be proportional to -processor core frequency for the same processor architecture, assuming -processor is the only limiting factor and all other SUT parameters are -equivalent to FD.io CSIT environment. - -Performance Tests Coverage --------------------------- - -Performance tests measure following metrics for tested DPDK DUT -topologies and configurations: - -- Packet Throughput: measured in accordance with :rfc:`2544`, using - FD.io CSIT Multiple Loss Ratio search (MLRsearch), an optimized binary - search algorithm, producing throughput at different Packet Loss Ratio - (PLR) values: - - - Non Drop Rate (NDR): packet throughput at PLR=0%. - - Partial Drop Rate (PDR): packet throughput at PLR=0.5%. - -- One-Way Packet Latency: measured at different offered packet loads: - - - 100% of discovered NDR throughput. - - 100% of discovered PDR throughput. - -- Maximum Receive Rate (MRR): measured 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. - -|csit-release| includes following DPDK Testpmd and L3fwd data plane -functionality performance tested across a range of NIC drivers and NIC -models: - -+-----------------------+----------------------------------------------+ -| Functionality | Description | -+=======================+==============================================+ -| L2IntLoop | L2 Interface Loop forwarding all Ethernet | -| | frames between two Interfaces. | -+-----------------------+----------------------------------------------+ -| IPv4 Routed | Longest Prefix Match (LPM) L3 IPv4 | -| Forwarding | forwarding of Ethernet frames between two | -| | Interfaces, with two /8 prefixes in lookup | -| | table. | -+-----------------------+----------------------------------------------+ |