node rodio --help

-h, --help             output usage information
-V, --version          output the version number
-t, --time <n>         Total time to elapse (seconds)
-c, --concurrency <n>  Number of concurrent requests (requests/second)
-x, --post <s>         POST parameters in quoted querystring form ( e.g. "foo=1&baz=2" )
-h, --host <s>         HTTP host to request in quotes

node rodio -t 5 -c 1 -x "foo=1&baz=2" -h "http://www.google.com"

Elapsed Time: 5 seconds
Concurrency: 1 request/second