memory utilization per process

mem-usage.sh

#!/bin/bash

# other interesting memory utilization scripts
# https://github.com/jhclark/memusg
# https://github.com/shovon8/sysmon/blob/master/sysmon
# https://gist.github.com/taoliu/1572440


    mem_info=$(ps -o pid,user,%mem,command ax | grep -v PID | awk '/[0-9]*/{print $1 ":" $2 ":" $3 ":" $4}')

    for i in $mem_info

    do
        process_pid=$(echo $i | cut -d: -f1)
        user=$(echo $i | cut -d: -f2)
        cmd=$(echo $i | cut -d: -f4)
        mem_usage=$(pmap $process_pid | tail -n 1 | awk '/[0-9]/{print $2}')
        
        echo "$process_pid" "$user" "$mem_usage" "$cmd"

    done

# you can also use the following commands to get an idea:
# ps -eo pid,tid,class,rtprio,stat,vsz,rss,comm |sort -k 7 -r|more
# ps -eo pid,stat,vsz,rss,%mem |sort -k 5 -r |more