#!/bin/bash
#
# Munin-plugin to monitor the cpu speeds of all available cpus
#
# Armin Haaf, 4-11-2007
# Licensed under: GNU GPL

MAX_CORES=1024


if [ "$1" = "config" ]; then
    echo "graph_title CPU speed"
    echo 'graph_category system'
    echo "graph_info This graph shows the cpu-speed for each core, as reported by the kernel"

    i=0
    while [ $i -lt $MAX_CORES ]
    do
        MODEL=`cat /proc/cpuinfo | grep -A 6 "processor.*:.*$i" | grep "model name"`
        if [ $? -ne 0 ]
        then
            break
        fi
        MODEL=`echo $MODEL | cut -c 12-`
        echo "core$i.label Core $i speed in MHz"
        echo "core$i.info Core $i speed in MHz $MODEL"
        echo "core$i.type GAUGE"
        i=$[$i+1]
    done
    exit 0
fi

i=0
while true
do
    cat /proc/cpuinfo | grep -A 6 "processor.*:.*$i" > /dev/null
    if [ $? -ne 0 ]
    then
        break
    fi
    echo -n "core$i.value "
    cat /proc/cpuinfo | grep -A 6 "processor.*:.*$i" | grep "cpu MHz" | cut -c 12- | cut -f 1 -d .
    i=$[$i+1]
done