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CentOS 7.0 - man page for ps_mem (centos section 1)

ps_mem(1)																 ps_mem(1)

NAME
ps_mem - Memory profiling tool
SYNOPSIS
ps_mem [-h|--help] [-s|--show-cmdline] [-p PID] [-w N]
DESCRIPTION
The ps_mem tool can determine how much RAM is used per program (not per process). In detail it reports: sum(private RAM for program processes) + sum(Shared RAM for program processes). The shared RAM is problematic to calculate, and the tool automatically selects the most accurate method available for the running kernel.
OPTIONS
-h --help Show help message -s --show-cmdline Show complete program path with options -p PID Show memory consumption of process with specified PID -w N Report memory consumption every N seconds
AUTHOR
Padraig Brady <P@draigBrady.com> 31 July 2013 ps_mem(1)