#!/bin/sh
#
# Plugin to monitor the number of procs in io-sleep and other wait
# states. Uses `vmstat`.
#
# Parameters: 
#
# 	config   (required)
# 	autoconf (optional - used by munin-config)
#
# Magick markers (optional):
#%# family=auto
#%# capabilities=autoconf



if [ "$1" = "autoconf" ]; then
	if ( vmstat 1 1 >/dev/null 2>&1 ); then
		echo yes
		exit 0
	else
		if [ $? -eq 127 ]; then
			echo "no (could not run \"vmstat\")"
			exit 1
		else
			echo no
			exit 1
		fi
	fi
fi

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

	echo 'graph_title VMstat'
	echo 'graph_args --base 1000 -l 0'
	echo 'graph_vlabel process states'
	echo 'graph_category processes'
	echo 'wait.label running'
	echo 'wait.type GAUGE'
	echo 'wait.max 500000'
	echo 'sleep.label I/O sleep'
	echo 'sleep.type GAUGE'
	echo 'sleep.max 500000'
	exit 0
fi

vmstat 1 2 | awk '{wait = $1; sleep = $2} END { print "wait.value " wait "\nsleep.value " sleep }'
