Initial version

plugins/other/cpuspeed_sane

@@ -0,0 +1,59 @@
+#!/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