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|
#!@@GOODSH@@
# -*- sh -*-
: << =cut
=head1 NAME
cpu - Plugin to monitor CPU usage
=head1 CONFIGURATION
No configuration
=head1 AUTHOR
Unknown author
=head1 LICENSE
GPLv2
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=cut
. "$MUNIN_LIBDIR/plugins/plugin.sh"
if [ "$1" = "autoconf" ]; then
if [ -x /usr/bin/kstat ]; then
echo yes
exit 0
else
echo no
exit 0
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 $cpumax"
print_adjusted_thresholds system "$graphlimit"
echo 'user.label user'
echo 'user.draw STACK'
echo 'user.type DERIVE'
echo 'user.min 0'
echo "user.max $cpumax"
print_adjusted_thresholds user "$graphlimit"
echo "waitio.max $cpumax"
echo 'waitio.label waitio'
echo 'waitio.draw STACK'
echo 'waitio.type DERIVE'
echo 'waitio.min 0'
print_adjusted_thresholds waitio "$graphlimit"
echo 'idle.label idle'
echo 'idle.draw STACK'
echo 'idle.type DERIVE'
echo 'idle.min 0'
echo "idle.max $cpumax"
print_adjusted_thresholds idle "$graphlimit"
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]
}
}'
|
