IPv4 Overlay Tunnels
====================
This section provides a summary of VPP Phy-to-Phy IPv4 Overlay Tunnels
performance illustrating packet latency measured at 50% of discovered NDR
throughput rate. Latency 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
latency test cases, *X-axis labels* are indeces of csit-vpp-perf-1704 jobs
that created result output files used as data sources for the graph,
*Y-axis labels* are measured packet Latency [uSec] values, and the *graph
legend* identifes the plotted test suites.
.. note::
Data sources for reported test results: i) FD.io test executor jobs
`csit-vpp-perf-1704-all
`_ ,
ii) archived FD.io jobs test result `output files
<../../_static/archive/>`_.
VPP packet latency - running in configuration of **one worker thread (1t) on one
physical core (1c)** - is presented in the figure below.
.. raw:: html
*Figure 1. VPP 1thread 1core - packet latency for Phy-to-Phy IPv4 Overlay Tunnels.*
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-ethip4[a-z0-9]+-[a-z0-9]*-ndrdisc" *
10ge2p1x520-ethip4lispip4-ip4base-ndrdisc.robot:| tc01-64B-1t1c-ethip4lispip4-ip4base-ndrdisc
10ge2p1x520-ethip4lispip6-ip4base-ndrdisc.robot:| tc01-64B-1t1c-ethip4lispip6-ip4base-ndrdisc
10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-ndrdisc.robot:| tc01-64B-1t1c-ethip4vxlan-l2bdbasemaclrn-ndrdisc
10ge2p1x520-ethip4vxlan-l2xcbase-ndrdisc.robot:| tc01-64B-1t1c-ethip4vxlan-l2xcbase-ndrdisc
VPP packet latency - running in configuration of **two worker threads (2t) on two
physical cores (2c)** - is presented in the figure below.
.. raw:: html
*Figure 2. VPP 2threads 2cores - packet latency for Phy-to-Phy IPv4 Overlay Tunnels.*
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-ethip4[a-z0-9]+-[a-z0-9]*-ndrdisc" *
10ge2p1x520-ethip4lispip4-ip4base-ndrdisc.robot:| tc07-64B-2t2c-ethip4lispip4-ip4base-ndrdisc
10ge2p1x520-ethip4lispip6-ip4base-ndrdisc.robot:| tc07-64B-2t2c-ethip4lispip6-ip4base-ndrdisc
10ge2p1x520-ethip4vxlan-l2bdbasemaclrn-ndrdisc.robot:| tc07-64B-2t2c-ethip4vxlan-l2bdbasemaclrn-ndrdisc
10ge2p1x520-ethip4vxlan-l2xcbase-ndrdisc.robot:| tc07-64B-2t2c-ethip4vxlan-l2xcbase-ndrdisc