Basic Benchmarking

This is the first iteration on our automated performance testing blueprint.

We need to set up a simple, "good enough for now" benchmarking cluster. Also, we need to create a simple "marconi-bench" tool that will have two clients, one producer and one consumer.'' There will be a "conductor" to start the two clients and collect the results. We will write results out for gnuplot, and also monitor real-time stats via graphite to catch anomalies.

Cluster:

1. HAProxy load balancer
2. 4x web heads running uwsgi, with Keystone auth disabled (we will bench it enabled later)
3. 1x3 mongo replica set
4. 1x graphite box
5. 3x Load generator boxes (1x producer, 1x consumer, one conductor)