Munin contributed plugins

#!/bin/sh

#

# Plugin to graph cpu speed on FreeBSD

#

# Parameters:

#

# 	sysctl      - Override path to sysctl program

#

#%# family=auto

#%# capabilities=autoconf

sysctl=${sysctl:-/sbin/sysctl}

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

	if [ -x ${sysctl} ]; then

		${sysctl} dev.cpu.0.freq 2>/dev/null | grep 'dev' >/dev/null 2>/dev/null

		if [ "$?" = "0" ]; then

		    echo yes

		    exit 0

		fi

		echo "no (dev.cpu.0.freq not found)"

		exit 1

	else

		echo "no (sysctl binary not found)"

		exit 2

	fi

fi

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

	echo 'graph_title CPU speed'

	echo 'graph_args --base 1000 -l 0'

	echo 'graph_vlabel speed in MHz'

	echo 'graph_category system'

	echo 'graph_info This graph shows CPU speed.'

	echo cpu0.label cpu0

	echo cpu0.info CPU0 Speed

        exit 0

fi

file=/usr/local/var/munin/plugin-state/cpuspeed

echo -n "cpu0.value "

if find $file -mtime -300s 2>/dev/null|grep -Fq $file ; then

	head -1 $file

else 

	$sysctl -n dev.cpu.0.freq

fi

# Get/cache cpuspeed "later".

export sysctl file

sh -c '(

 rand=$(dd if=/dev/urandom bs=1 count=1 2>/dev/null|od -A n -D)

 rand=$(expr $rand \* 60 / 256 + 25)

 sleep $rand

 $sysctl -n dev.cpu.0.freq > $file

)&' >/dev/null 2>&1