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