Io.js: https://iojs.org/en/index.html
ApacheBenchmark: http://httpd.apache.org/docs/2.2/programs/ab.html
If needed you can change IP address or accounts in javascript file:
/modules/testing/models/load.js
In the folder where you pulled git repository you should run:
iojs --es_staging .
http://localhost:3002/explorer/#!/loads/
Where
/testConnection endpoint is basically getInfo of broker account
/testOneWay creates 1 cent VTM and load it to store
For AB (Apache Benchmark I was using following configuration)
ab -t 10000000000 -s 600 -n 1000 -c 1 http://127.0.0.1:3002/api/loads/testOneWay
Please note that Node.JS should running when you execute tests.