Find out which processes are Swapping - Revision history

Paulb at 12:19, 2 January 2013

2013-01-02T12:19:05Z

← Older revision		Revision as of 12:19, 2 January 2013
Line 1:		Line 1:
-	Ever wanted to know which processes are swapping and how much swap space they are using. Starting from kernel 2.6.16, we can find out using smaps which can be found in the proc filesystem. The script below will make it easy for you and lists all processes and how much swap space they are using.	+	Ever wanted to know which processes are swapping and how much swap space they are using. Starting from kernel 2.6.16, we can find out using smaps which can be found in the proc filesystem. The script below will make it easy for you and lists all processes and how much swap space they are using and must be run by root.


Line 9:		Line 9:
	SUM=0		SUM=0
	OVERALL=0		OVERALL=0
		+
		+	if [ "$(id -u)" != "0" ]; then
		+	echo "This script must be run as root" 1>&2
		+	exit 1
		+	fi

	for DIR in `find /proc/ -maxdepth 1 -type d \| egrep "^/proc/[0-9]"` ; do		for DIR in `find /proc/ -maxdepth 1 -type d \| egrep "^/proc/[0-9]"` ; do

Mverwijs at 07:08, 23 September 2011

2011-09-23T07:08:42Z

← Older revision		Revision as of 07:08, 23 September 2011
Line 23:		Line 23:
	echo "Overall swap used: $OVERALL"		echo "Overall swap used: $OVERALL"
	</pre>		</pre>
		+
		+	[[Category:Debug]]

Msartor: Created page with "Ever wanted to know which processes are swapping and how much swap space they are using. Starting from kernel 2.6.16, we can find out using smaps which can be found in the proc f..."

2011-09-22T10:59:28Z

Created page with "Ever wanted to know which processes are swapping and how much swap space they are using. Starting from kernel 2.6.16, we can find out using smaps which can be found in the proc f..."

New page

Ever wanted to know which processes are swapping and how much swap space they are using. Starting from kernel 2.6.16, we can find out using smaps which can be found in the proc filesystem. The script below will make it easy for you and lists all processes and how much swap space they are using.

The script:
<pre>
#!/bin/bash
#

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: ${SUM}K - ($PROGNAME )"
let OVERALL=$OVERALL+$SUM
SUM=0
done

echo "Overall swap used: $OVERALL"
</pre>