#!/bin/sh

TMPFILE="/tmp/pid.txt"

let TOLMEM=`cat /proc/meminfo | grep MemTotal | awk '{print $2}'`
let FREEMEM=`cat /proc/meminfo | grep MemFree | awk '{print $2}'`
USEDHWMEM=0
USEDVMMEM=0

ps | awk '{print $1}' > $TMPFILE

printf "------------------------------------------------------------------------------------------------------------------\n"
printf "|                                       Memory(VM) = VmSize = VmLib + VmExe + VmData + VmStk                     |\n"
printf "------------------------------------------------------------------------------------------------------------------\n"
printf "|          Process         |    PID   | Memory(HW)/KB| Memory(VM)/KB| VMPeak/KB    | VMLib/KB     | VMStk/KB     |\n"
printf "------------------------------------------------------------------------------------------------------------------\n"

while read line
do
	MEMFILE=/proc/$line/status

	if [ -f $MEMFILE ]; then
		NAME=`cat $MEMFILE | grep Name | awk '{print $2}'`
		PID=`cat $MEMFILE | grep -w Pid | awk '{print $2}'`
		HWMEM=`cat $MEMFILE | grep VmRSS | awk '{print $2}'`
		VMMEM=`cat $MEMFILE | grep VmSize | awk '{print $2}'`
		VMPEAK=`cat $MEMFILE | grep VmPeak | awk '{print $2}'`
		VMLIB=`cat $MEMFILE | grep VmLib | awk '{print $2}'`
		VMSTK=`cat $MEMFILE | grep VmStk | awk '{print $2}'`

		if [ -n "$HWMEM" ] && [ "$NAME" != "dump_mem.sh" ]; then
			printf "| %-24s | %-8s | %-12s | %-12s | %-12s | %-12s | %-12s |\n" " $NAME" " $PID" " $HWMEM" "$VMMEM" "$VMPEAK" "$VMLIB" "$VMSTK"
			USEDHWMEM=`expr $USEDHWMEM + $HWMEM`
			USEDVMMEM=`expr $USEDVMMEM + $VMMEM`
		fi
	fi	
done < $TMPFILE

printf "------------------------------------------------------------------------------------------------------------------\n"
awk -v b=$TOLMEM -v a=$FREEMEM -v c=$USEDHWMEM -v d=$USEDVMMEM -v y=1024.0 \
		 'BEGIN{printf "Used/Total(%.0fM/%.0fM):                    %11.2fM   %11.2fM\n", (b-a)/y, b/y, c/y, d/y}'
date -R