In Tsung, How can run concurrent users for long period like 1 hr, 2 hr and so on

Hi all,

We have developed the chat application using XMPP Protocol and the server is Ejaberrd. We are using Tsung tool, to check the performance of the application which are maintaining by ejaberrd server

Need to run concurrent users like 100,200,300 users and so on for long time like 1 hr, 2 hr, 3 hr and so on in Tsung Tool. Therefore, we need script file for this scenario.