On Mon, 25 Jun 2018 12:57:08 +0200 Eelco Chaudron <[email protected]> wrote:
> 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(+) For the series: Acked-by: Jakub Sitnicki <[email protected]> _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
