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December 17, 2015 01:34
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how to find out which processes are swapping in linux?
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| #!/bin/bash | |
| # ref: http://stackoverflow.com/a/12254656/1105489 | |
| # find-out-what-is-using-your-swap.sh | |
| # -- Get current swap usage for all running processes | |
| # -- | |
| # -- rev.0.3, 2012-09-03, Jan Smid - alignment and intendation, sorting | |
| # -- rev.0.2, 2012-08-09, Mikko Rantalainen - pipe the output to "sort -nk3" to get sorted output | |
| # -- rev.0.1, 2011-05-27, Erik Ljungstrom - initial version | |
| 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}/"; |
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