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+VM vhost Connections
+====================
+
+Following sections provide a summary of VPP Phy-to-VM-to-Phy VM vhost-user
+performance illustrating NDR throughput (zero packet loss) and PDR throughput
+(<0.5% packet loss). Performance is reported for VPP running in multiple
+configurations of VPP worker thread(s), a.k.a. VPP data plane thread (s), and
+their physical CPU core(s) placement.
+
+Title of each graph is a regex (regular expression) matching all plotted
+test case throughput measurements.
+
+.. note::
+
+    Data sources for reported test results: i) FD.io test executor jobs
+    `csit-vpp-perf-1701-all
+    <https://jenkins.fd.io/view/csit/job/csit-vpp-perf-1701-all/>`_ and
+    `csit-vpp-perf-1701-long
+    <https://jenkins.fd.io/view/csit/job/csit-vpp-perf-1701-long/>`_
+    , ii) archived FD.io jobs test result `output files
+    <../../_static/archive/>`_.
+
+NDR Throughput
+~~~~~~~~~~~~~~
+
+VPP NDR Throughput - running in configuration of **one worker thread (1t) on one
+physical core (1c)** - is presented in the figure below.
+
+.. raw:: html
+
+    <iframe width="700" height="700" frameborder="0" scrolling="no" src="../../_static/vpp/64B-1t1c-vhost-ndrdisc.html"></iframe>
+
+*Figure 1. VPP 1thread 1core - NDR Throughput for Phy-to-VM-to-Phy VM
+vhost-user.*
+
+CSIT test cases used to generate results presented above can be found in CSIT
+git repository by filtering with specified regex as follows:
+
+.. code-block:: bash
+
+    $ csit/tests/perf
+    $ grep -E "64B-1t1c-.*vhost.*-ndrdisc" *
+
+    10ge2p1x520-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-dot1q-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-ethip4-ip4base-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-eth-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
+    10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    40ge2p1xl710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc01-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+
+VPP NDR Throughput - running in configuration of **two worker threads (2t) on
+two physical cores (2c)** - is presented in the figure below.
+
+.. raw:: html
+
+    <iframe width="700" height="700" frameborder="0" scrolling="no" src="../../_static/vpp/64B-2t2c-vhost-ndrdisc.html"></iframe>
+
+*Figure 2. VPP 2threads 2cores - NDR Throughput for Phy-to-VM-to-Phy VM
+vhost-user.*
+
+CSIT test cases used to generate results presented above can be found in CSIT
+git repository by filtering with specified regex as follows:
+
+.. code-block:: bash
+
+    $ csit/tests/perf
+    $ grep -E "64B-2t2c-.*vhost.*-ndrdisc" *
+
+    10ge2p1x520-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-dot1q-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-ethip4-ip4base-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-ethip4-ip4base-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-eth-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
+    10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    40ge2p1xl710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc07-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+
+VPP NDR Throughput - running in configuration of **four worker threads (4t) on
+four physical cores (4c)** - is presented in the figure below.
+
+.. raw:: html
+
+    <iframe width="700" height="700" frameborder="0" scrolling="no" src="../../_static/vpp/64B-4t4c-vhost-ndrdisc.html"></iframe>
+
+*Figure 3. VPP 4threads 4cores - NDR Throughput for Phy-to-VM-to-Phy VM
+vhost-user.*
+
+CSIT test cases used to generate results presented above can be found in CSIT
+git repository by filtering with specified regex as follows:
+
+.. code-block:: bash
+
+    $ csit/tests/perf
+    $ grep -E "64B-4t4c-.*vhost.*-ndrdisc" *
+
+    10ge2p1x520-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc13-64B-4t4c-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-dot1q-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc13-64B-4t4c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-ethip4-ip4base-eth-2vhost-1vm-ndrdisc.robot:| tc13-64B-4t4c-ethip4-ip4base-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc13-64B-4t4c-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc13-64B-4t4c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    10ge2p1x520-eth-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc13-64B-4t4c-eth-l2xcbase-eth-2vhost-1vm-ndrdisc
+    10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc13-64B-4t4c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+    40ge2p1xl710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc13-64B-4t4c-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc
+
+PDR Throughput
+~~~~~~~~~~~~~~
+
+VPP PDR Throughput - running in configuration of **one worker thread (1t) on one
+physical core (1c)** - is presented in the figure below. PDR at below 0.5%
+packet loss ratio.
+
+.. raw:: html
+
+    <iframe width="700" height="700" frameborder="0" scrolling="no" src="../../_static/vpp/64B-1t1c-vhost-pdrdisc.html"></iframe>
+
+*Figure 4. VPP 1thread 1core - PDR Throughput for Phy-to-VM-to-Phy VM
+vhost-user.*
+
+CSIT test cases used to generate results presented above can be found in CSIT
+git repository by filtering with specified regex as follows:
+
+.. code-block:: bash
+
+    $ csit/tests/perf
+    $ grep -E "64B-1t1c-.*vhost.*-pdrdisc" *
+
+    10ge2p1x520-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc02-64B-1t1c-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-dot1q-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc02-64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-ethip4-ip4base-eth-2vhost-1vm-ndrdisc.robot:| tc02-64B-1t1c-ethip4-ip4base-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc02-64B-1t1c-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc02-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-eth-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc02-64B-1t1c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc
+    10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc02-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    40ge2p1xl710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc02-64B-1t1c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+
+VPP PDR Throughput - running in configuration of **two worker threads (2t) on
+two physical cores (2c)** - is presented in the figure below.
+
+.. raw:: html
+
+    <iframe width="700" height="700" frameborder="0" scrolling="no" src="../../_static/vpp/64B-2t2c-vhost-pdrdisc.html"></iframe>
+
+*Figure 5. VPP 2thread 2core - PDR Throughput for Phy-to-VM-to-Phy VM
+vhost-user.*
+
+CSIT test cases used to generate results presented above can be found in CSIT
+git repository by filtering with specified regex as follows:
+
+.. code-block:: bash
+
+    $ csit/tests/perf
+    $ grep -E "64B-2t2c-.*vhost.*-pdrdisc" *
+
+    10ge2p1x520-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc08-64B-2t2c-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-dot1q-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc08-64B-2t2c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-ethip4-ip4base-eth-2vhost-1vm-ndrdisc.robot:| tc08-64B-2t2c-ethip4-ip4base-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc08-64B-2t2c-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc08-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-eth-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc08-64B-2t2c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc
+    10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc08-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    40ge2p1xl710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc08-64B-2t2c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+
+VPP PDR Throughput - running in configuration of **four worker threads (4t) on
+four physical cores (4c)** - is presented in the figure below.
+
+.. raw:: html
+
+    <iframe width="700" height="700" frameborder="0" scrolling="no" src="../../_static/vpp/64B-4t4c-vhost-pdrdisc.html"></iframe>
+
+*Figure 6. VPP 4thread 4core - PDR Throughput for Phy-to-VM-to-Phy VM
+vhost-user.*
+
+CSIT test cases used to generate results presented above can be found in CSIT
+git repository by filtering with specified regex as follows:
+
+.. code-block:: bash
+
+    $ csit/tests/perf
+    $ grep -E "64B-4t4c-.*vhost.*-pdrdisc" *
+
+    10ge2p1x520-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc14-64B-4t4c-dot1q-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-dot1q-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc14-64B-4t4c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-ethip4-ip4base-eth-2vhost-1vm-ndrdisc.robot:| tc14-64B-4t4c-ethip4-ip4base-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc14-64B-4t4c-ethip4vxlan-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc14-64B-4t4c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    10ge2p1x520-eth-l2xcbase-eth-2vhost-1vm-ndrdisc.robot:| tc14-64B-4t4c-eth-l2xcbase-eth-2vhost-1vm-pdrdisc
+    10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc14-64B-4t4c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+    40ge2p1xl710-eth-l2bdbasemaclrn-eth-2vhost-1vm-ndrdisc.robot:| tc14-64B-4t4c-eth-l2bdbasemaclrn-eth-2vhost-1vm-pdrdisc
+