Process Accounting

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

• User IDs and group IDs of users using the process

• Beginning times 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 terminates, the exit program collects this information and writes it to the /var/adm/pacct file.