Under Debuntu:

$ sudo apt-get install libev-dev libzmq-dev python-dev

Prepare environment:

git clone [repository]

Edit configuration file buildout.cfg. Set agents-count.

virtualenv .
source bin/activate
python bootstrap.py
bin/buildout
bin/circusd etc/circus.ini --daemon --pidfile circusd.pid

bin/loads-runner -b tcp://0.0.0.0:13001 op_loads_tests.TestWebSite.test_main_page --hits 20 -u 10 -a 5