#!/bin/bash
# Get current swap usage for all running processes
# Erik Ljungstrom 27/05/2011
SUM=0
OVERALL=0
for DIR in `find /proc/ -maxdepth 1 -type d | egrep "^/proc/[0-9]"` ; do
PID=`echo $DIR | cut -d / -f 3`
PROGNAME=`ps -p $PID -o comm --no-headers`
for SWAP in `grep Swap $DIR/smaps 2>/dev/null| awk '{ print $2 }'` ; do
let SUM=$SUM+$SWAP
done
echo "PID=$PID - Swap used: $SUM - ($PROGNAME )"
let OVERALL=$OVERALL+$SUM
SUM=0
 
done
echo "Overall swap used: $OVERALL"

# ./script.sh | sort -n -k 5| egrep -v "Swap used: 0"
Overall swap used: 7604
PID=22282 - Swap used: 8 - (gdm-simple-slav )
PID=1234 - Swap used: 20 - (dhclient3 )
PID=22326 - Swap used: 44 - (hald )
PID=891 - Swap used: 44 - (irqbalance )
PID=1118 - Swap used: 52 - (getty )
PID=1136 - Swap used: 56 - (rtkit-daemon )
PID=321 - Swap used: 72 - (upstart-udev-br )
PID=874 - Swap used: 72 - (getty )
PID=881 - Swap used: 72 - (getty )
PID=884 - Swap used: 72 - (getty )
PID=887 - Swap used: 72 - (getty )
PID=870 - Swap used: 76 - (getty )
PID=1 - Swap used: 84 - (init )
PID=729 - Swap used: 88 - (dbus-daemon )
PID=746 - Swap used: 92 - (avahi-daemon )
PID=896 - Swap used: 120 - (cron )
PID=897 - Swap used: 120 - (atd )
PID=1700 - Swap used: 124 - (udisks-daemon )
PID=9999 - Swap used: 148 - (upowerd )
PID=1701 - Swap used: 152 - (udisks-daemon )
PID=753 - Swap used: 164 - (avahi-daemon )
PID=740 - Swap used: 192 - (gdm-binary )
PID=759 - Swap used: 228 - (modem-manager )
PID=833 - Swap used: 264 - (wpa_supplicant )
PID=712 - Swap used: 272 - (rsyslogd )
PID=969 - Swap used: 272 - (cupsd )
PID=9972 - Swap used: 272 - (acpid )
PID=22321 - Swap used: 296 - (gdm-session-wor )
PID=747 - Swap used: 300 - (NetworkManager )
PID=28620 - Swap used: 304 - (udevd )
PID=28621 - Swap used: 308 - (udevd )
PID=323 - Swap used: 312 - (udevd )
PID=686 - Swap used: 332 - (mount.ntfs-3g )
PID=758 - Swap used: 520 - (console-kit-dae )
PID=1140 - Swap used: 672 - (polkitd )
PID=1827 - Swap used: 1308 - (evolution-data- )