Find Out What Is Using Your Swap

!/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"

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$ ./getswap.sh | sort -n -k 5
$ ./getswap.sh  | egrep -v "Swap used: 0" |sort -n -k 5