Documentation: Update PMD thread statistics.
'pmd-perf-show' gives some extra information and has nicer
formatting than 'pmd-stats-show'.
Let the user know they can use that as well to get PMD stats.
Acked-by: Sunil Pai G
@@ -59,10 +59,25 @@ To show current stats::
$ ovs-appctl dpif-netdev/pmd-stats-show
+or::
+
+ $ ovs-appctl dpif-netdev/pmd-perf-show
+
+Detailed performance metrics for ``pmd-perf-show`` can also be enabled::
+
+ $ ovs-vsctl set Open_vSwitch . other_config:pmd-perf-metrics=true
+
+See the `ovs-vswitchd(8)`_ manpage for more information.
+
To clear previous stats::
$ ovs-appctl dpif-netdev/pmd-stats-clear
+.. note::
+
+ PMD stats are cumulative so they should be cleared in order to see how the
+ PMDs are being used with current traffic.
+
Port/Rx Queue Assignment to PMD Threads
---------------------------------------
@@ -303,3 +318,6 @@ or a week.
due to changes required in dpctl flows and EMC for newly added flows.
In such scenarios user should configure rebalance interval accordingly
to avoid frequent rebalancing happening.
+
+.. _ovs-vswitchd(8):
+ http://openvswitch.org/support/dist-docs/ovs-vswitchd.8.html
