This series of patches contains optimization to the statistics
and status update to OVSDB.
In particular, netdev and ofproto-dpif can now use sequence number
or boolean flag to indicate status change. So, ovs-vswitchd can
skip the update if there is no status change. This almost halve
the cpu usage of the ovs-vswitchd thread when for example only
one tunnel is flapping.
More importantly, 'disable-stats-update' is added to schema which
allows users disable the statistics update. This brings huge
reduction on ovs-vswitch cpu consumption!!! When 'disable-stats-update'
is set, the 'ovs-appctl stats/require-update' can be used to force a
statistics update.
Alex Wang (8):
netdev: Add 'change_seq' back to netdev.
netdev-dpdk: Indicate the change of etheraddr and mtu.
ofproto: Use netdev's 'change_seq' to reduce port modification check.
ofproto-dpif: Make bfd and cfm notify ofproto-dpif when the
status changes.
bridge: Remove the 'Instant' stats.
bridge: Add configuration to disable the interface stats/status
update to OVSDB.
bridge: Add command to force statistics update when the
'disable-stats-update' is set.
tests/ovs-vswitchd: Add a test for the 'stats/require-update'.
lib/bfd.c | 24 +++-
lib/bfd.h | 5 +-
lib/cfm.c | 22 +++-
lib/cfm.h | 4 +-
lib/netdev-bsd.c | 5 +
lib/netdev-dpdk.c | 5 +
lib/netdev-dummy.c | 2 +
lib/netdev-linux.c | 1 +
lib/netdev-provider.h | 17 +++
lib/netdev-vport.c | 3 +
lib/netdev.c | 8 ++
lib/netdev.h | 1 +
ofproto/ofproto-dpif.c | 81 ++++++++++--
ofproto/ofproto-provider.h | 20 +--
ofproto/ofproto.c | 28 +++--
ofproto/ofproto.h | 6 +-
tests/ovs-vswitchd.at | 45 +++++++
vswitchd/bridge.c | 295 +++++++++++++++++++++-----------------------
vswitchd/ovs-vswitchd.8.in | 4 +
vswitchd/vswitch.xml | 5 +
20 files changed, 382 insertions(+), 199 deletions(-)
--
1.7.9.5
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