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authorChristian Trautman <ctrautma@redhat.com>2017-01-11 15:00:52 -0500
committerChristian Trautman <ctrautma@redhat.com>2017-01-13 17:57:37 -0500
commit3ea19952db315e88263437ed41b0c31bd3bdbdf4 (patch)
tree9499954b7606bd7f54678898e9b3dcf139116de4 /docs/userguide
parent5bd06d3527c2ade600cab62764aed06f344986bc (diff)
testpmd_pvp: Adds pkt_fwd to allow pvp topology testing
Requires DPDK 16.11 or greater to support vdev flags. Initial support for TestPMD to support guests. Allows vsperf to execute TestPMD as a switch for pvp test scenarios. Can be increased in functionality later to support multiple guest configs. JIRA: VSPERF-406 Change-Id: I67a5a355c990ca6cfcbb5845a2beaf1c1f21f5f0 Signed-off-by: Christian Trautman <ctrautma@redhat.com>
Diffstat (limited to 'docs/userguide')
-rwxr-xr-xdocs/userguide/testusage.rst54
1 files changed, 52 insertions, 2 deletions
diff --git a/docs/userguide/testusage.rst b/docs/userguide/testusage.rst
index 46413f03..379618d2 100755
--- a/docs/userguide/testusage.rst
+++ b/docs/userguide/testusage.rst
@@ -613,7 +613,7 @@ or use ``--vswitch`` and ``--fwdapp`` CLI arguments:
.. code-block:: console
- $ ./vsperf --conf-file user_settings.py \
+ $ ./vsperf phy2phy_cont --conf-file user_settings.py \
--vswitch none \
--fwdapp TestPMD
@@ -647,7 +647,57 @@ Supported Packet Forwarding applications are:
.. code-block:: console
- $ ./vsperf --conf-file <path_to_settings_py>
+ $ ./vsperf phy2phy_tput --conf-file <path_to_settings_py>
+
+Executing Packet Forwarding tests with one guest
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+TestPMD with DPDK 16.11 or greater can be used to forward packets as a switch to a single guest using TestPMD vdev
+option. To set this configuration the following parameters should be used.
+
+ .. code-block:: python
+
+ VSWITCH = 'none'
+ PKTFWD = 'TestPMD'
+
+or use ``--vswitch`` and ``--fwdapp`` CLI arguments:
+
+ .. code-block:: console
+
+ $ ./vsperf pvp_tput --conf-file user_settings.py \
+ --vswitch none \
+ --fwdapp TestPMD
+
+Guest forwarding application only supports TestPMD in this configuration.
+
+ .. code-block:: python
+
+ GUEST_LOOPBACK = ['testpmd']
+
+For optimal performance one cpu per port +1 should be used for TestPMD. Also set additional params for packet forwarding
+application to use the correct number of nb-cores.
+
+ .. code-block:: python
+
+ VSWITCHD_DPDK_ARGS = ['-l', '46,44,42,40,38', '-n', '4', '--socket-mem 1024,0']
+ TESTPMD_ARGS = ['--nb-cores=4', '--txq=1', '--rxq=1']
+
+For guest TestPMD 3 VCpus should be assigned with the following TestPMD params.
+
+ .. code-block:: python
+
+ GUEST_TESTPMD_PARAMS = ['-l 0,1,2 -n 4 --socket-mem 1024 -- '
+ '--burst=64 -i --txqflags=0xf00 '
+ '--disable-hw-vlan --nb-cores=2 --txq=1 --rxq=1']
+
+Execution of TestPMD can be run with the following command line
+
+ .. code-block:: console
+
+ ./vsperf pvp_tput --vswitch=none --fwdapp=TestPMD --conf-file <path_to_settings_py>
+
+**NOTE:** To achieve the best 0% loss numbers with rfc2544 throughput testing, other tunings should be applied to host
+and guest such as tuned profiles and CPU tunings to prevent possible interrupts to worker threads.
VSPERF modes of operation
^^^^^^^^^^^^^^^^^^^^^^^^^