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Why does beam.smp process have high CPU usage?

Configuration:

enter code hereUbuntu 12.04
enter code hereOpenstack Grizzly 
enter code hereOpenstack Networking with OVS plugin

Everything seems to be working ok. I can launch and connect to the instance but I notice that the more I have instances running, the more the "nova" command and the dashboard responses becoming very slow. One thing I noticed was the beam.smp CPU usage is most of the time 100% and I have seen it went up to 500%. I think this is contributing to the performance I am seeing.

I installed the management plugin to check the status of rabbitmq-server and everything seems to be normal. Resources available are way more than the current usage.
Here's the output of the "rabbitmqctl report | grep A3 file_descriptors".

enter code here {file_descriptors,
 [{total_limit,9900},
  {total_used,259},
  {sockets_limit,8908},
  {sockets_used,257}]},

I was running the rabbitmq version that came with Ubuntu 12.04 and I upgraded it to ver 3.1.1-1 to test if that would help solve the problem, but same bproblem. Does anyone have seen this behavior? Thanks for any help that you can provide.

Why does beam.smp process have high CPU usage?

Configuration:

enter code hereUbuntu Ubuntu 12.04
enter code hereOpenstack Openstack Grizzly 
enter code hereOpenstack Openstack Networking with OVS plugin

Everything seems to be working ok. I can launch and connect to the instance but I notice that the more I have instances running, the more the "nova" command and the dashboard responses becoming very slow. One thing I noticed was the beam.smp CPU usage is most of the time 100% and I have seen it went up to 500%. I think this is contributing to the performance I am seeing.

I installed the management plugin to check the status of rabbitmq-server and everything seems to be normal. Resources available are way more than the current usage.
Here's the output of the "rabbitmqctl report | grep A3 file_descriptors".

enter code here {file_descriptors,
 [{total_limit,9900},
  {total_used,259},
  {sockets_limit,8908},
  {sockets_used,257}]},
{sockets_used,257},

I was running the rabbitmq version that came with Ubuntu 12.04 and I upgraded it to ver 3.1.1-1 to test if that would help solve the problem, but same bproblem. Does anyone have seen this behavior? Thanks for any help that you can provide.

Why does beam.smp process have high CPU usage?

Configuration:

Ubuntu 12.04
Openstack Grizzly 
Openstack Networking with OVS plugin

Everything seems to be working ok. I can launch and connect to the instance but I notice that the more I have instances running, the more the "nova" command and the dashboard responses becoming very slow. One thing I noticed was the beam.smp CPU usage is most of the time 100% and I have seen it went up to 500%. I think this is contributing to the performance I am seeing.

I installed the management plugin to check the status of rabbitmq-server and everything seems to be normal. Resources available are way more than the current usage.
Here's the output of the "rabbitmqctl report | grep A3 file_descriptors".

{file_descriptors,
 [{total_limit,9900},
  {total_used,259},
  {sockets_limit,8908},
  {sockets_used,257},

I was running the rabbitmq version that came with Ubuntu 12.04 and I upgraded it to ver 3.1.1-1 to test if that would help solve the problem, but same bproblem. Does anyone have seen this behavior? Thanks for any help that you can provide.