When atop is started, it switches on the process accounting mechanism in the kernel. This forces the kernel to write a record with accounting information to the accounting file whenever a process ends. Apart from the kernel administration related to the running processes, atop also interprets the accounting records on disk with every interval; in this way atop can also show the activity of a process during the interval in which it is finished.TwitterFacebookGoogle+Found an error/typo on this page? Help us!
Atop Command Unix / Linux System & Process Monitor