tree d2f4452ed7a4ec42a212690ac2633b006c1e10c0
parent 795449d8b846a42d11d47d6ff2f51ab2967411c3
author Pravin B Shelar <pshelar@nicira.com> 1383092541 -0700
committer Jesse Gross <jesse@nicira.com> 1389052344 -0800

openvswitch: Per cpu flow stats.

With mega flow implementation ovs flow can be shared between
multiple CPUs which makes stats updates highly contended
operation. This patch uses per-CPU stats in cases where a flow
is likely to be shared (if there is a wildcard in the 5-tuple
and therefore likely to be spread by RSS). In other situations,
it uses the current strategy, saving memory and allocation time.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>