Producing Specific Accounting Records
Use the ACNT command to produce accounting records for one or more logged-on users, for the system, or both.
A user accounting record shows the system resources a particular user has consumed since the user logged on or since you last entered the ACNT command for this user, whichever is more recent.
A system accounting record shows the system resources charged to the system rather than to a specific user. The record reflects use since you last brought up z/VM, or since you last entered the ACNT command for the system, whichever is more recent.