L2 Ethernet Interface Loop
==========================

Following sections include summary graphs of DPDK Testpmd Phy-to-Phy performance
with L2 Ethernet Interface Loop, including NDR throughput (zero packet loss)
and PDR throughput (<0.5% packet loss). Performance is reported for Testpmd
running in multiple configurations of Testpmd pmd thread(s), a.k.a. Testpmd
data plane thread(s), and their physical CPU core(s) placement.

NDR Throughput
~~~~~~~~~~~~~~

Testpmd NDR 64B packet throughput in 1t1c setup (1thread, 1core) is presented
in the graph below.

.. raw:: html

    <iframe width="700" height="1000" frameborder="0" scrolling="no" src="../../_static/dpdk/64B-1t1c-l2-ndrdisc.html"></iframe>

*Figure 1. Testpmd 1thread 1core - NDR Throughput for Phy-to-Phy L2 Ethernet
Looping.*

CSIT source code for the test cases used for above plots can be found in CSIT
git repository:

.. program-output:: cd ../../ && set -x && cd tests/dpdk/perf && grep -P '64B-1t1c-eth-l2xcbase-testpmd-ndrdisc' *
   :shell:

Testpmd NDR 64B packet throughput in 2t2c setup (2thread, 2core) is presented
in the graph below.

.. raw:: html

    <iframe width="700" height="1000" frameborder="0" scrolling="no" src="../../_static/dpdk/64B-2t2c-l2-ndrdisc.html"></iframe>

*Figure 2. Testpmd 2threads 2cores - NDR Throughput for Phy-to-Phy L2 Ethernet
Looping.*

CSIT source code for the test cases used for above plots can be found in CSIT
git repository:

.. program-output:: cd ../../ && set -x && cd tests/dpdk/perf && grep -P '64B-2t2c-eth-l2xcbase-testpmd-ndrdisc' *
   :shell:

PDR Throughput
~~~~~~~~~~~~~~

Testpmd PDR 64B packet throughput in 1t1c setup (1thread, 1core) is presented
in the graph below. PDR measured for 0.5% packet loss ratio.

.. raw:: html

    <iframe width="700" height="1000" frameborder="0" scrolling="no" src="../../_static/dpdk/64B-1t1c-l2-pdrdisc.html"></iframe>

*Figure 3. Testpmd 1thread 1core - PDR Throughput for Phy-to-Phy L2 Ethernet
Looping.*

CSIT source code for the test cases used for above plots can be found in CSIT
git repository:

.. program-output:: cd ../../ && set -x && cd tests/dpdk/perf && grep -P '64B-1t1c-eth-l2xcbase-testpmd-pdrdisc' *
   :shell:

Testpmd PDR 64B packet throughput in 2t2c setup (2thread, 2core) is presented
in the graph below. PDR measured for 0.5% packet loss ratio.

.. raw:: html

    <iframe width="700" height="1000" frameborder="0" scrolling="no" src="../../_static/dpdk/64B-2t2c-l2-pdrdisc.html"></iframe>

*Figure 4. Testpmd 2thread 2core - PDR Throughput for Phy-to-Phy L2 Ethernet
Looping.*

CSIT source code for the test cases used for above plots can be found in CSIT
git repository:

.. program-output:: cd ../../ && set -x && cd tests/dpdk/perf && grep -P '64B-2t2c-eth-l2xcbase-testpmd-pdrdisc' *
   :shell: