On 16/04/2019 10:45, David Marchand wrote:
> Rather than poll all disabled queues and waste some memory for vms that
> have been shutdown, we can reconfigure when receiving a destroy
> connection notification from the vhost library.
>
> $ while true; do
> ovs-appctl dpif-netdev/pmd-rxq-show |awk '
> /port: / {
> tot++;
> if ($NF == "disabled") {
> dis++;
> }
> }
> END {
> print "total: " tot ", enabled: " (tot - dis)
> }'
> sleep 1
> done
>
> total: 66, enabled: 66
> total: 6, enabled: 2
>
> Note: this patch requires a fix for the vhost library submitted here:
> http://patchwork.dpdk.org/patch/52680/
>
> Without it, this change will do nothing but have openvswitch complain
> that the vhost device is unknown:
>
> dpdk|INFO|VHOST_CONFIG: vhost peer closed
> dpdk|ERR|VHOST_CONFIG: (0) device not found.
>
> dpdk|INFO|VHOST_CONFIG: vhost peer closed
> dpdk|ERR|VHOST_CONFIG: (1) device not found.
>
> Signed-off-by: David Marchand <david.march...@redhat.com>
I think this probably shouldn't be merged until OVS is using a version
of DPDK with the linked patch because it is introducing errors in the
logs which can be alarming for a user. The DPDK fix should be part of
DPDK 18.11.2.
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