A method to record the number of server calls a client makes to the server is to use the request logs. The request log can be enabled using the SET DATABASE PARAMETER command:

SET DATABASE PARAMETER(Client Log Recording;1)

Each line recorded in the log is a call to the server. This means that this method can also be used to count the number of server calls between two points, by enabling the request log or counting the number of lines at the initial point, and then counting the number of lines recorded at the second point.