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- 2018-08-02
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cpu-usage-by-process
Sadly there is no documentation for this plugin.
#!/bin/sh
#
# Plugin to monitor CPU usage, for a selected set of processes. Tested on FreeBSD.
#
# Author: Erik Cederstrand
# Based on http://waste.mandragor.org/munin_tutorial/cpubyuser
# Thanks to Yann Hamon.
#
# 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:
# [cpubyproc]
# env.procs httpd java
#
# httpd and java being a list of the processes to monitor.
#
# Parameters understood:
#
# config (required)
# autoconf (optional - used by munin-config)
#
#%# family=auto
#%# capabilities=autoconf
procs=${procs:-}
if [ "$1" = "autoconf" ] ; then
if [ -n "$procs" ] ; then
echo "yes"
else
echo "no (environment variable 'procs' is not defined)"
fi
exit
fi
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 $procs"
FIRSTPROC=1
for proc in $procs; do
echo "${proc}.label $proc"
echo "${proc}.info CPU used by process $proc"
echo "${proc}.type GAUGE"
if [ $FIRSTPROC -eq 1 ] ; then
echo "${proc}.draw AREA"
export FIRSTPROC=0
else
echo "${proc}.draw STACK"
fi
done
exit
fi
for proc in $procs ; do {
ps axo 'pcpu,comm' | grep "$proc" | awk '
BEGIN {
FS=" "
CPU_PROC=0
}
{
CPU_PROC+=$0
}
END {
print "'"$proc"'.value "CPU_PROC
}'
}
done