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IPv6 Overlay Tunnels
====================
This section provides a summary of VPP Phy-to-Phy IPv6 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
<https://jenkins.fd.io/view/csit/job/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
<iframe width="700" height="700" frameborder="0" scrolling="no" src="../../_static/vpp/78B-1t1c-ethip6-ndrdisc-lat50.html"></iframe>
*Figure 1. VPP 1thread 1core - packet latency for Phy-to-Phy IPv6 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 "78B-1t1c-ethip6[a-z0-9]+-[a-z0-9]*-ndrdisc" *
10ge2p1x520-ethip6lispip4-ip6base-ndrdisc.robot:| tc01-78B-1t1c-ethip6lispip4-ip6base-ndrdisc
10ge2p1x520-ethip6lispip6-ip6base-ndrdisc.robot:| tc01-78B-1t1c-ethip6lispip6-ip6base-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
<iframe width="700" height="700" frameborder="0" scrolling="no" src="../../_static/vpp/78B-2t2c-ethip6-ndrdisc-lat50.html"></iframe>
*Figure 2. VPP 2threads 2cores - packet latency for Phy-to-Phy IPv6 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 "78B-2t2c-ethip6[a-z0-9]+-[a-z0-9]*-ndrdisc" *
10ge2p1x520-ethip6lispip4-ip6base-ndrdisc.robot:| tc07-78B-2t2c-ethip6lispip4-ip6base-ndrdisc
10ge2p1x520-ethip6lispip6-ip6base-ndrdisc.robot:| tc07-78B-2t2c-ethip6lispip6-ip6base-ndrdisc
|
