munin-contrib/plugins/vserver/vserver_jiffies

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#!/bin/zsh
#
# Created by Jan Rękorajski <baggins@pld-linux.org> based on vserver_cpu_ plugin.
#
# Obtained from https://github.com/munin-monitoring/contrib.git
#
# Changes by Andras Korn, 2015:
#
# * Convert to zsh
# * Fix to remove dots from vserver names (replace them with _)
# * Drop support for old (pre 2.6.19) kernels
# * Replace cat | grep | cut pipelines with a single sed
# * Add env.stripdomain (a domain name to strip from the
# end of vserver names when generating labels; be sure
# to include the leading dot)
#
# Graph Vserver cumulative cpu usage stats
#
# Configuration variables
# vservers - specify the vservers to include in the graph (default: all)
#
# NOTE: If no configuration variable is set, the default will be used
#
# see vserver_resources for example uses of configuration files
VSERVERS=(${=vservers})
STRIPDOMAIN="$stripdomain"
INFO=($(sed 's/.*:\t//' /proc/virtual/info 2>/dev/null || echo '<none>'))
NAMELOC="nsproxy"
if [[ -z "$VSERVERS" ]] ; then
cd /proc/virtual
XIDS=($(echo *(/)))
else
# it's really more performant to specify vservers by ids or by linking but not in the configuration-file by name
XIDS=""
for i in $VSERVERS[@] ; do
if [[ -d /proc/virtual/$i ]] ; then
XIDS=($XIDS[@] $i)
else
for j in /proc/virtual/*(/) -type d; do
if [[ "$i" = $(sed -n '/NodeName/s/^NodeName:[[:space:]]*//p' $j/$NAMELOC) ]]; then
XIDS=($XIDS[@] ${j:t})
fi
done
fi
done
fi
if [[ "$1" = "config" ]]; then
echo 'graph_category virtualization'
echo 'graph_args --base 1000'
echo 'graph_title Vserver cpu usage'
echo 'graph_vlabel jiffies used per ${graph_period}'
echo 'graph_info Shows jiffies used on each vserver.'
for i in $XIDS[@]; do
LABEL=$(sed -n '/NodeName/s/^NodeName:[[:space:]]*//p' /proc/virtual/$i/$NAMELOC)
LABEL=${LABEL%$STRIPDOMAIN}
NAME=${LABEL//./_}
NAME=${NAME//-/_}
echo "${NAME}_hold.label on hold for cpu on $LABEL"
echo "${NAME}_hold.info on hold for cpu on $LABEL."
echo "${NAME}_hold.type COUNTER"
echo "${NAME}_scpu.label system cpu usage for $LABEL"
echo "${NAME}_scpu.info system cpu usage for $LABEL."
echo "${NAME}_scpu.type COUNTER"
echo "${NAME}_ucpu.label user cpu usage for $LABEL"
echo "${NAME}_ucpu.info user cpu usage for $LABEL."
echo "${NAME}_ucpu.type COUNTER"
done
exit 0
fi
for i in $XIDS[@]; do
LABEL=$(sed -n '/NodeName/s/^NodeName:[[:space:]]*//p' /proc/virtual/$i/$NAMELOC)
LABEL=${LABEL%$STRIPDOMAIN}
NAME=${LABEL//./_}
NAME=${NAME//-/_}
awk -v name=$NAME -v u=0 -v s=0 -v h=0 '
/^cpu [0-9]+:/ { u+=$3; s+=$4; h+=$5}
END {
print name "_hold.value " h
print name "_scpu.value " s
print name "_ucpu.value " u
}' /proc/virtual/$i/sched
done