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|
#!/bin/sh
#
# Plugin to monitor CPU usage.
#
# Usage: Place in /etc/munin/node.d/ (or link it there using ln -s)
#
# Parameters understood:
#
# config (required)
# autoconf (optional - used by munin-config)
#
# $Log$
# Revision 1.9 2004/12/10 10:47:50 jimmyo
# Change name from ${scale} to ${graph_period}, to be more consistent.
#
# Revision 1.8 2004/12/09 22:12:56 jimmyo
# Added "graph_period" option, to make "graph_sums" usable.
#
# Revision 1.7 2004/12/09 17:20:16 jimmyo
# Patched sunos/cpu to work on Solaris 9 (SF#1077899).
#
# Revision 1.6 2004/11/21 00:17:12 jimmyo
# Changed a lot of plugins so they use DERIVE instead of COUNTER.
#
# Revision 1.5 2004/05/20 19:02:38 jimmyo
# Set categories on a bunch of plugins
#
# Revision 1.4 2004/05/06 21:39:54 jimmyo
# Added plugin acpi, contributed by Alexandre Dupouy.
#
# Revision 1.3 2004/04/30 16:43:00 jimmyo
# Cleaned up Solaris plugins.
#
# Revision 1.2 2004/02/18 16:39:37 jimmyo
# Turned off scaling of values for cpu-graphs (no more nano-percentages).
#
# Revision 1.1 2004/01/02 18:50:01 jimmyo
# Renamed occurrances of lrrd -> munin
#
# Revision 1.1.1.1 2004/01/02 15:18:07 jimmyo
# Import of LRRD CVS tree after renaming to Munin
#
# Revision 1.5 2003/11/07 22:12:51 jimmyo
# Changed deprecated plugin options
#
# Revision 1.4 2003/11/07 17:43:16 jimmyo
# Cleanups and log entries
#
#
#
# Magic markers - optional - used by installation scripts and
# munin-config:
#
#%# family=auto
#%# capabilities=autoconf
if [ "$1" = "autoconf" ]; then
if [ -x /usr/bin/kstat ]; then
echo yes
exit 0
else
echo no
exit 1
fi
fi
if [ "$1" = "config" ]; then
echo 'graph_title CPU usage'
echo 'graph_order system user waitio idle'
echo 'graph_category system'
ncpu=`kstat -p -c misc -n system_misc -s '/^ncpus$/' | cut -f2 -d' '`
cpumax=`expr "$ncpu" '*' 100`
if [ "$scaleto100" = "yes" ]; then
graphlimit=100
else
graphlimit=$cpumax
fi
echo "graph_args --base 1000 --lower-limit 0 --rigid --upper-limit $graphlimit"
echo 'graph_vlabel %'
echo 'graph_scale no'
echo 'graph_period ${graph_period}'
echo 'system.label system'
echo 'system.draw AREA'
echo 'system.type DERIVE'
echo 'system.min 0'
echo "system.max $cpumax"
echo 'user.label user'
echo 'user.draw STACK'
echo 'user.type DERIVE'
echo 'user.min 0'
echo "user.max $cpumax"
echo "waitio.max $cpumax"
echo 'waitio.label waitio'
echo 'waitio.draw STACK'
echo 'waitio.type DERIVE'
echo 'waitio.min 0'
echo 'idle.label idle'
echo 'idle.draw STACK'
echo 'idle.type DERIVE'
echo 'idle.min 0'
echo "idle.max $cpumax"
if [ "$scaleto100" = "yes" ]; then
echo "system.cdef system,$ncpu,/"
echo "user.cdef user,$ncpu,/"
echo "waitio.cdef waitio,$ncpu,/"
echo "idle.cdef idle,$ncpu,/"
fi
exit 0
fi
kstat -p -c misc -m cpu_stat -s '/^(user|kernel|wait|idle)$/' | sed -e 's/.*://' | awk '
BEGIN {
map["user"] = "user"
map["kernel"] = "system"
map["wait"] = "waitio"
map["idle"] = "idle"
}
length(map[$1]) > 0 {
sum[map[$1]] += $2
total += $2
}
END {
for (item in sum) {
print item ".value", sum[item]
}
}'
|
