Data usage on socket for http request

how to calculate data usage for a http request or for socket created by http connect request.

For each HTTP request/response pair we store the bytes_in and bytes_out fields (the size of the request and the size of the response). Beaware that these don't include, however, the IP and TCP headers.

You can identify a single connection by the (client_ip, client_port, ip, port) combination.