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Overview
========
Testpmd Performance Test Topologies
-----------------------------------
CSIT Testpmd performance tests are executed on physical baremetal servers hosted
by LF FD.io project. Testbed physical topology is shown in the figure below.::
+------------------------+ +------------------------+
| | | |
| +------------------+ | | +------------------+ |
| | | | | | | |
| | <-----------------> | |
| | DUT1 | | | | DUT2 | |
| +--^---------------+ | | +---------------^--+ |
| | | | | |
| | SUT1 | | SUT2 | |
+------------------------+ +------------------^-----+
| |
| |
| +-----------+ |
| | | |
+------------------> TG <------------------+
| |
+-----------+
SUT1 and SUT2 are two System Under Test servers (Cisco UCS C240, each with two
Intel XEON CPUs), TG is a Traffic Generator (TG, another Cisco UCS C240, with
two Intel XEON CPUs). SUTs run Testpmd SW application in Linux user-mode as a
Device Under Test (DUT). TG runs TRex SW application as a packet Traffic
Generator. Physical connectivity between SUTs and to TG is provided using
different NIC models that need to be tested for performance. Currently
installed and tested NIC models include:
#. 2port10GE X520-DA2 Intel.
#. 2port10GE X710 Intel.
#. 2port10GE VIC1227 Cisco.
#. 2port40GE VIC1385 Cisco.
#. 2port40GE XL710 Intel.
Detailed LF FD.io test bed specification and topology is described on `CSIT LF
testbed wiki page <https://wiki.fd.io/view/CSIT/CSIT_LF_testbed>`_.
Testpmd Performance Tests Overview
----------------------------------
Performance tests are split into two main categories:
- Throughput discovery - discovery of packet forwarding rate using binary search
in accordance to RFC2544.
- NDR - discovery of Non Drop Rate, zero packet loss.
- PDR - discovery of Partial Drop Rate, with specified non-zero packet loss.
- Throughput verification - verification of packet forwarding rate against
previously discovered throughput rate. These tests are currently done against
0.9 of reference NDR, with reference rates updated periodically.
CSIT |release| includes following performance test suites:
- 2port10GE X520-DA2 Intel
- **L2XC** - L2 Cross-Connect forwarding of untagged Ethernet frames.
|
