Tsung

tsung - Graphical Reports

Transactions and Pages	Requests and connection establishment
Response time for pages and transactions (a page is a group of requests not separated by a thinktime).	connect Mean duration of the connection establishment only.request Mean duration of requests.

Simultaneous Users
users Number of simultaneous users (it's session has started, but not yet finished). connected number of users with an opened TCP/UDP connection (example: for HTTP, during a think time, the TCP connection can be closed by the server, and it won't be reopened until the thinktime has expired)