Munin contributed plugins

#!/bin/sh

#

# Plugin to monitor CPU share, for a selected set of processes. Tested on Linux.

#

# Author: Stefan Osterlitz

# Based on work of Erik Cederstrand

#

# Usage: Place in /usr/local/etc/munin/plugins/ (or link it there  using ln -s)

#        Add this to your /ur/local/etc/munin/plugin-conf.d/plugins.conf:

#       [process_*]

#       env.procs httpd java

#

#    httpd and java being a list of the processes to monitor. You may use regex expressions for grep, but watch their conversion to field names.

#		 ps options may vary.

#

# Parameters understood:

#

#       config   (required)

#       autoconf (optional - used by munin-config)

#

#%# family=auto

#%# capabilities=autoconf

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

    if [ -n "$procs" ] ; then

        echo "yes"

    else

        echo "\$procs not defined."

    fi

    exit

fi

for proc in $procs; do

    cproc=${proc//[^A-Za-z0-9_]/_}

    cprocs+=" $cproc"

done;

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

    echo "graph_args --base 1000 -r --lower-limit 0";

    echo "graph_title CPU usage, by process";

    echo "graph_category processes";

    echo "graph_info This graph shows CPU usage, for monitored processes.";

    echo 'graph_vlabel %'

    echo 'graph_scale no'

    echo 'graph_period second'

    echo "graph_order $cprocs"

    for proc in $procs; do  

        cproc=${proc//[^A-Za-z0-9_]/_}

        echo "${cproc}.label $proc"

        echo "${cproc}.info CPU used by process $proc"

     done ;

    exit

fi

for proc in $procs ; do {

        cproc=${proc//[^A-Za-z0-9_]/_}

	ps axo 'pcpu,comm,command' | grep -v grep | grep "$proc" | LC_ALL=us_US awk '

	BEGIN { 

	SUM=0 

	}

	{ 

	SUM+=$1 

	}

	END { 

	print "'${cproc}'.value "SUM 

	}

	'

}

done;