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 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.