[ovs-git] [openvswitch/ovs] cbbab7: flow: Wildcard UDP ports when using SYMMETRIC_L4 h...
noreply at github.com
Tue Jul 16 22:30:43 UTC 2019
Author: Vishal Deep Ajmera <vishal.deep.ajmera at ericsson.com>
Date: 2019-07-16 (Tue, 16 Jul 2019)
flow: Wildcard UDP ports when using SYMMETRIC_L4 hash for select groups.
UDP source and destination ports are not used to derive the hash index
used for selecting the bucket in case of SYMMETRIC_L4 hash based select
groups. However, they are un-wildcarded in the megaflow entry match criteria.
This results in distinct megaflow entry being created for each pair of UDP
source and destination ports unnecessarily and causes significant performance
deterioration when the megaflow cache limit is reached.
This patch wildcards UDP ports when using select group with SYMMETRIC_L4
Signed-off-by: Vishal Deep Ajmera <vishal.deep.ajmera at ericsson.com>
CC: Jan Scheurich <jan.scheurich at ericsson.com>
Signed-off-by: Ben Pfaff <blp at ovn.org>
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