This series add some additional counters that make FDB debugging easier.
The following counters now exists on a per mac_learning instance, and
the last two have also been added as coverage counters.
learned: Total number of learned MAC entries
expired: Total number of expired MAC entries
evicted: Total number of evicted MAC entries, i.e. entries moved
out due to the table being full.
moved : Total number of port moved MAC entries, i.e. entries
where the MAC address moved to a different port.
Take the example where you have an FDB table size configured which is
to small.
The effect of this is a high CPU utilization of the revalidator threads.
The firs clue is the rev_mac_learning revalidator reason coverage counter.
Than looking at the mac_learning_learned counter you know a lot of
learning is going on but no reason why. The new mac_learning_evicted
counter quickly shows it's related to entries being evicted.
Currently you have to do this by taking muliple copies of the FDB table
and compare them.
Eelco Chaudron (5):
mac-learning: Add additional mac-learning coverage counters
mac-learning: Add per mac learning instance counters
utilities: Update gdb script to include mac_learning counters
ofproto: Add CLI commands to show and clear mac_learning statistics
vswitchd: Document new fdb statistics commands
lib/mac-learning.c | 23 +++++++++++++++
lib/mac-learning.h | 7 +++++
ofproto/ofproto-dpif.c | 67 ++++++++++++++++++++++++++++++++++++++++++++
utilities/gdb/ovs_gdb.py | 4 +++
vswitchd/ovs-vswitchd.8.in | 5 +++
5 files changed, 106 insertions(+)
_______________________________________________
dev mailing list
[email protected]
https://mail.openvswitch.org/mailman/listinfo/ovs-dev
