Process Accounting

Process accounting enables you to keep track of the following data about each process run on your system:

• User and group IDs of those using the process

• Beginning and elapsed times of the process

• CPU time for the process (user time and system time)

• Amount of memory used

• Commands run

• The tty controlling the process

Every time a process dies, the exit program collects this data and writes it to /var/adm/pacct.