[ovs-discuss] ovs-vswitchd is sucking every cycle (100% CPU usage).

[John Chludzinski]

BTW, when I pulled the plug (literally) on the router, ovs-vswitchd CPU 
usage dropped to <1%.


On 2016-09-16 00:06, John Chludzinski wrote:
> I created a bond-port (and enabled LACP):
> 
> ~# ovs-vsctl add-br b1
> ~# ovs-vsctl add-bond b1 bd1 enp8s0 enp0s26u1u3u1
> ~# ovs-vsctl set port bd1 lacp=active
> 
> On a CISCO router I connected interfaces: enp8s0 & enp0s26u1u3u1
> to ports 2 & 3.
> 
> On the CISCO routes I enabled LACP on ports 2 & 3.
> 
> Then I ran 'top' and ovs-vswitchd was sucking every cycle (100% CPU 
> usage).
> 
> I ran:
> 
> ~# tail -f /var/log/openvswitch/ovs-vswitchd.log
> 
> ...
> 
> 2016-09-16T01:54:10.812Z|00408|poll_loop(revalidator12)|INFO|Dropped
> 24296 log messages in last 6 seconds (most recently, 0 seconds ago)
> due to excessive rate
> 2016-09-16T01:54:10.812Z|00409|poll_loop(revalidator12)|INFO|wakeup
> due to [POLLIN] on fd 43 (FIFO pipe:[18987]) at
> ofproto/ofproto-dpif-upcall.c:899 (66% CPU usage)
> 2016-09-16T01:54:16.890Z|00410|poll_loop(revalidator12)|INFO|Dropped
> 20991 log messages in last 6 seconds (most recently, 1 seconds ago)
> due to excessive rate
> 2016-09-16T01:54:16.890Z|00411|poll_loop(revalidator12)|INFO|wakeup
> due to 500-ms timeout at ofproto/ofproto-dpif-upcall.c:898 (55% CPU
> usage)
> 2016-09-16T01:54:22.812Z|00412|poll_loop(revalidator12)|INFO|Dropped
> 24745 log messages in last 6 seconds (most recently, 0 seconds ago)
> due to excessive rate
> 2016-09-16T01:54:22.812Z|00413|poll_loop(revalidator12)|INFO|wakeup
> due to [POLLIN] on fd 43 (FIFO pipe:[18987]) at lib/ovs-thread.c:304
> (79% CPU usage)
> 2016-09-16T01:54:28.812Z|00414|poll_loop(revalidator12)|INFO|Dropped
> 24821 log messages in last 6 seconds (most recently, 0 seconds ago)
> due to excessive rate
> 2016-09-16T01:54:28.812Z|00415|poll_loop(revalidator12)|INFO|wakeup
> due to [POLLIN] on fd 43 (FIFO pipe:[18987]) at lib/ovs-thread.c:304
> (66% CPU usage)
> 2016-09-16T01:54:34.812Z|00043|poll_loop(revalidator13)|INFO|Dropped
> 26469 log messages in last 6 seconds (most recently, 0 seconds ago)
> due to excessive rate
> 
> ...
> 
> Repeated again, and again, and ...
> 
> 
> ---John
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