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.Read answer to: "Show All Running Processes in Linux"
Atop Command Unix / Linux System & Process Monitor
by Nix Craft on March 9, 2010· LAST UPDATED March 9, 2010