tsung + erlang

[Saravana]

Hello friends,

       I need to know that how to use tsung??Actually my erlang web
application running on http://localhost:8000,then i should measure the
performance of my application,here i installed tsung,then i entered
the command "tsung-recorder start",it is started,my objective is i
have to measure the performance of my web application

i don't know where i have to enter the url of my web application?How
will give the input?

How to measure it?,How ll i get the text file?Is any easy tool
available to test the loading of server??

please help me