Processes consuming swap on Server
## Get swap space in Linux using bash for loop ##
for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | sort -k 2 -n -r | less
## bash for loop ##
for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done
Script to find swap usage:
SUM=0
OVERALL=0
for DIR in `find /proc/ -maxdepth 1 -type d -regex "^/proc/[0-9]+"`
do
PID=`echo $DIR | cut -d / -f 3`
PROGNAME=`ps -p $PID -o comm --no-headers`
for SWAP in `grep VmSwap $DIR/status 2>/dev/null | awk '{ print $2 }'`
do
let SUM=$SUM+$SWAP
done
if (( $SUM > 0 )); then
echo "PID=$PID swapped $SUM KB ($PROGNAME)"
fi
let OVERALL=$OVERALL+$SUM
SUM=0
done
echo "Overall swap used: $OVERALL KB"
Script to find swap usage of runing processes.
the below script should be run with root user to get the correct results
SCRIPT_NAME=`basename $0`;
SORT="kb"; # {pid|kB|name} as first parameter, [default: kb]
[ "$1" != "" ] && { SORT="$1"; }
[ ! -x `which mktemp` ] && { echo "ERROR: mktemp is not available!"; exit; }
MKTEMP=`which mktemp`;
TMP=`${MKTEMP} -d`;
[ ! -d "${TMP}" ] && { echo "ERROR: unable to create temp dir!"; exit; }
>${TMP}/${SCRIPT_NAME}.pid;
>${TMP}/${SCRIPT_NAME}.kb;
>${TMP}/${SCRIPT_NAME}.name;
SUM=0;
OVERALL=0;
echo "${OVERALL}" > ${TMP}/${SCRIPT_NAME}.overal;
for DIR in `find /proc/ -maxdepth 1 -type d -regex "^/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
if (( $SUM > 0 ));
then
echo -n ".";
echo -e "${PID}\t${SUM}\t${PROGNAME}" >> ${TMP}/${SCRIPT_NAME}.pid;
echo -e "${SUM}\t${PID}\t${PROGNAME}" >> ${TMP}/${SCRIPT_NAME}.kb;
echo -e "${PROGNAME}\t${SUM}\t${PID}" >> ${TMP}/${SCRIPT_NAME}.name;
fi
let OVERALL=$OVERALL+$SUM
SUM=0
done
echo "${OVERALL}" > ${TMP}/${SCRIPT_NAME}.overal;
echo;
echo "Overall swap used: ${OVERALL} kB";
echo "========================================";
case "${SORT}" in
name )
echo -e "name\tkB\tpid";
echo "========================================";
cat ${TMP}/${SCRIPT_NAME}.name|sort -r;
;;
kb )
echo -e "kB\tpid\tname";
echo "========================================";
cat ${TMP}/${SCRIPT_NAME}.kb|sort -rh;
;;
pid | * )
echo -e "pid\tkB\tname";
echo "========================================";
cat ${TMP}/${SCRIPT_NAME}.pid|sort -rh;
;;
esac
rm -fR "${TMP}/";
