#!/bin/sh
#
# Plugin to monitor swap IO in number of blocks per second.
#
# Parameters:
#
# 	config   (required)
# 	autoconf (optional - used by munin-config)
#
# $Log$
# Revision 1.5  2004/12/10 10:47:49  jimmyo
# Change name from ${scale} to ${graph_period}, to be more consistent.
#
# Revision 1.4  2004/12/09 22:12:56  jimmyo
# Added "graph_period" option, to make "graph_sums" usable.
#
# Revision 1.3  2004/11/21 00:17:12  jimmyo
# Changed a lot of plugins so they use DERIVE instead of COUNTER.
#
# Revision 1.2  2004/05/20 13:57:12  jimmyo
# Set categories to some of the plugins.
#
# Revision 1.1  2004/01/02 18:50:01  jimmyo
# Renamed occurrances of lrrd -> munin
#
# Revision 1.1.1.1  2004/01/02 15:18:07  jimmyo
# Import of LRRD CVS tree after renaming to Munin
#
# Revision 1.4  2003/11/07 22:12:50  jimmyo
# Changed deprecated plugin options
#
# Revision 1.3  2003/11/07 17:43:16  jimmyo
# Cleanups and log entries
#
#
#
# Magic markers (used by munin-config and some installation scripts (i.e.
# optional)):
#%# family=auto
#%# capabilities=autoconf



if [ "$1" = "autoconf" ]; then
	if [ -r /proc/stat ]; then
		echo yes
		exit 0
	else
		echo no
		exit 1
	fi
fi

if [ "$1" = "config" ]; then

	echo 'graph_title Swap in/out'
	echo 'graph_args -l 0 --base 1000'
	echo 'graph_vlabel pages per ${graph_period} in (-) / out (+)'
	echo 'graph_category system'
	echo 'swap_in.label swap'
	echo 'swap_in.type DERIVE'
	echo 'swap_in.max 100000'
	echo 'swap_in.min 0'
	echo 'swap_in.graph no'
	echo 'swap_out.label swap'
	echo 'swap_out.type DERIVE'
	echo 'swap_out.max 100000'
	echo 'swap_out.min 0'
	echo 'swap_out.negative swap_in'
	exit 0
fi

if [ -f /proc/vmstat ]; then
	awk '/pswpin/ { print "swap_in.value " $2 } /pswpout/ { print "swap_out.value " $2 }' < /proc/vmstat 
else
	awk '/swap/ { print "swap_in.value " $2 "\nswap_out.value " $3 }' < /proc/stat 
fi