It adds all records for processes that executed identically-named commands, sorts them, and writes them to the standard output, normally using an internal summary format. Output is normally sorted by total kcore-minutes. Sort by total CPU time, rather than total kcore-minutes. Sort by number of command invocations.
Any file names encountered hereafter are already in internal summary format.
Process all records as total accounting records. The following options can be used only with the -a option. All the output summaries are total usage except number of times executed, CPU minutes, and real minutes which are split into prime and non-prime.