Check queue perfdata

Use case

Sometimes OpenStack services use common messaging system very prodigally. For example Neutron metering agent sending all database table data on new object creation i.e https://review.openstack.org/#/c/143672/. It cause to Neutron degradation and other obvious problems. It will be nice to have a way to track messages count and messages size in queue during tests/benchmarks.

Problem description

Heavy usage of queue isn’t checked.

Possible solution

• Before running tests/benchmarks start process which will connect to queue topics and measure messages count, size and other data which we need.