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#!/bin/sh
#
# Copyright (c) 2017 Babak Farrokhi. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# 10-Aug-2015 @farrokhi
# This script extracts netisr dispatcher statistics from "netstat -Q"
# on FreeBSD and feeds to munin
#
# Magic markers:
#%# family=auto
#%# capabilities=autoconf suggest
SCRIPT_NAME=$(basename $0)
NETSTAT="/usr/bin/netstat"
STAT_TYPE=`echo $SCRIPT_NAME | sed -n s/netisr_//p`
STATFILE=`mktemp -t netisr`
${NETSTAT} -Q > ${STATFILE} 2>/dev/null
if [ $# -lt 1 ]; then
if [ -z ${STAT_TYPE} ]; then
echo "Should run from symlink"
exit 1
fi
awk '
BEGIN {
OFS="";
qed=0;
handled=0;
dropped=0;
hdised=0;
dised=0;
st="";
}
/ ('${STAT_TYPE}') / {
st=$3;
qed=qed+$9;
handled=handled+$10;
dropped=dropped+$8;
hdised=hdised+$7;
dised=dised+$6;
}
END {
print st, "_queued.value ", qed;
print st, "_handled.value ", handled;
print st, "_dropped.value ", dropped;
print st, "_hdispatched.value ", hdised;
print st, "_dispatched.value ", dised;
}
' ${STATFILE}
elif [ "$1" == "suggest" ]; then
awk '/--$/{print $1}' ${STATFILE}
elif [ "$1" == "autoconf" ]; then
${NETSTAT} -Q >/dev/null 2>&1 && echo yes || echo no
exit 0
elif [ "$1" == "config" ]; then
if [ x${STAT_TYPE} == x ]; then
exit 1
fi
echo "graph_title netisr dispatcher statistics for ${STAT_TYPE}"
echo "graph_args -X 0 --lower-limit 0 --base 1000"
echo "graph_vlabel PPS"
echo "graph_category isr"
awk '
/ ('${STAT_TYPE}') / {
print $3"_queued.label Queued";
print $3"_handled.label Handled";
print $3"_dropped.label Dropped";
print $3"_hdispatched.label Hybrid-Dispatched";
print $3"_dispatched.label Dispatched";
print $3"_queued.type DERIVE";
print $3"_handled.type DERIVE";
print $3"_dropped.type DERIVE";
print $3"_hdispatched.type DERIVE";
print $3"_dispatched.type DERIVE";
print $3"_queued.min 0";
print $3"_handled.min 0";
print $3"_dropped.min 0";
print $3"_hdispatched.min 0";
print $3"_dispatched.min 0";
}' ${STATFILE}
fi
rm ${STATFILE}