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cool-down.sh
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cool-down.sh
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#!/bin/sh
# ----------------------------------------------
# author: Jakub Krzywda, Umea University, Sweden
# email: jakub@cs.umu.se
# ----------------------------------------------
power_measurement_server= # address of the physical machine providing the power consumption measurements
node= # name of the default node for logging purposes
address= # default address for measuring the power consumption of the host
cooldown_power=85 # default power consumption (in Watts) that is consider as acceptable to start next experiment
results_directory=tests # directory to store experiment results
while [ "$1" != "" ]; do
case $1 in
-n | --node ) shift
node=$1
;;
-a | --address ) shift
address=$1
;;
-c | --cooldownpower ) shift
cooldown_power=$1
esac
shift
done
case $node in
"node_1" ) address=1.1.1.1.1
;;
"node_2" ) address=2.2.2.2.2
;;
"node_3" ) address=3.3.3.3.3
esac
date=`date "+%y_%m_%d-%H:%M:%S"` # date and time of beginning of experiment (used for naming the log files)
# let physical machine to cool down (waiting till power consumption decreases to "acceptable" level)
cool_down_start=$SECONDS
while : ; do
pc=`snmpget -c public -v 2c $power_measurement_server $address | awk -v pm="$node" '//{print $4}'` # measure power consumption
echo $node";cooling_time;"$pc";"$((SECONDS - cool_down_start)) >> ${results_directory}/power-cooldown_$date.csv # store results to log
if [ "$pc" -lt "$cooldown_power" ]; then
break
fi
sleep 1 # time between measurements
done