[ovs-build] Broken: dceara/ovs#39 (controller-queue-size - 071328d)
builds at travis-ci.org
Wed Jul 31 09:10:52 UTC 2019
Build Update for dceara/ovs
Duration: 55 mins and 54 secs
Commit: 071328d (controller-queue-size)
Author: Dumitru Ceara
Message: vswitchd: Make packet-in controller queue size configurable
The ofconn packet-in queue for packets that can't be immediately sent
on the rconn connection was limited to 100 packets (hardcoded value).
While increasing this limit is usually not recommended as it might
create buffer bloat and increase latency, in scaled scenarios it is
useful if the administrator (or CMS) can adjust the queue size.
One such situation was noticed while performing scale testing of the
OVN IGMP functionality: triggering ~200 simultaneous IGMP reports
was causing tail drops on the packet-in queue towards ovn-controller.
This commit adds the possibility to configure the queue size for:
- management controller (br-int.mgmt): through the
other_config:controller-queue-size column of the Bridge table. This
value is limited to 512 as large queues definitely affect latency. If
not present the default value of 100 is used. This is done in order to
maintain the same default behavior as before the commit.
- other controllers: through the controller_queue_size column of the
Controller table. This value is also limited to 512. If not present
the code uses the Bridge:other_config:controller-queue-size
Signed-off-by: Dumitru Ceara <dceara at redhat.com>
v2: Address reviewer comments (increase vswitch.vsschema version &
View the changeset: https://github.com/dceara/ovs/compare/ab54e840630d...071328dc9dc7
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