#!/bin/bash 
user=$(whoami) 
if [ !$user == 'root' ] 
then 
    sudo -i 
fi 
echo -e "["`date +"%Y-%m-%d %H:%M:%S"`"] \\c" 
echo "installing stress-ng..." 
yum install stress-ng -y

percentage={{percentage}}
timeout={{timeout}}
step={{step}}

for (( i = $step; i < ${timeout} + $step; i=(i+step) )); do   
    val=`expr $percentage \\* $i / $timeout`
    echo "Pre = $val"
    stress-ng -c 0 -l $val --timeout $step
done 

if [[ !$? -eq 0 ]] 
then 
    echo -e "["`date +"%Y-%m-%d %H:%M:%S"`"] \\c" 
    echo "Failed" 
    exit 1 
else 
    echo -e "["`date +"%Y-%m-%d %H:%M:%S"`"] \\c" 
    echo "Completed" 
    exit 0 
fi