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- 2020-10-05
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cpu_freq_1sec
Name
cpu_freq_1sec - small supersampling plugin that samples cpu usage every second
Authors
Copyright (C) 2013 Steve Schnepp steve.schnepp@pwkf.org
License
GNU Library General Public License v2 only
SPDX-License-Identifier: LGPL-2.0-only
#! /bin/sh
: <<=cut
=head1 NAME
cpu_freq_1sec - small supersampling plugin that samples cpu usage every second
=head1 AUTHORS
Copyright (C) 2013 Steve Schnepp <steve.schnepp@pwkf.org>
=head1 LICENSE
GNU Library General Public License v2 only
SPDX-License-Identifier: LGPL-2.0-only
=cut
pluginfull="$0" # full name of plugin
plugin="${0##*/}" # name of plugin
pidfile="$MUNIN_PLUGSTATE/munin.$plugin.pid"
cache="$MUNIN_PLUGSTATE/munin.$plugin.value"
if [ ! -r "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq" ]
then
echo "# Cannot read CPU Freq"
exit 1
fi
if [ "$1" = "acquire" ]
then
(
while sleep 1
do
echo $(
date +%s
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
)
done | awk "{
print \"scaling_cur_freq.value \" \$1 \":\" (\$2 * 1000);
system(\"\");
}" >> $cache
) &
echo $! > $pidfile
exit 0
fi
if [ "$1" = "config" ]
then
cat <<EOF
graph_title CPU Freq 1sec stats
graph_category 1sec
graph_data_size custom 1d, 10s for 1w, 1m for 1t, 5m for 1y
graph_vlabel Hz
update_rate 1
scaling_cur_freq.label Current CPU Scaling Frequence
scaling_cur_freq.type GAUGE
EOF
exit 0
fi
# values
cat ${cache}
> ${cache}
exit 0