#!/bin/sh
sttime=`date +%s`
randstr=`cat /proc/sys/kernel/random/uuid`
trap 'rm -rf $F1;rm -rf $F2;rm -rf $F3;wait;exit' INT 
trap 'rm -rf $F1;rm -rf $F2;rm -rf $F3;wait;exit' TERM
ME=`whoami`
F1="/home/$ME/.iotest.tmp.$randstr"
F2="/tmp/.iotest.tmp.$randstr"
F3="/var/tmp/.iotest.tmp.$randstr"
size=0
filesize=0
LOG="/home/$ME/iotest.log"
t=`date`

function readfile() {
   cat $1 > /dev/null
   cat $2 > /dev/null
   cat $3 > /dev/null
   rm -rf $1
   rm -rf $2  
   rm -rf $3
}

echo "Start at" `date` "Pid $$" > $LOG
while true
do

if [ $filesize -gt 2024000 ];then

   readfile $F1 $F2 $F3 &&  echo `date` "Read size: $filesize" >> $LOG

   now=`date +%s`
   ((exectime=$now-172800))
   if [ $exectime -gt $sttime ];then
        wait
        exit
   fi
   F1=`cat /proc/sys/kernel/random/uuid |md5sum |awk p=$ME '{print "/home/"p"/."$1".io.test.tmp"}'`
   F2=`cat /proc/sys/kernel/random/uuid |md5sum |awk '{print "/tmp/."$1".io.test.tmp"}'`
   F3=`cat /proc/sys/kernel/random/uuid |md5sum |awk '{print "/var/tmp/."$1".io.test.tmp"}'`
   filesize=0
   echo `date` ":count write size: $size" >> $LOG

fi
ws=''
((rnd=$RANDOM%100))

for (( i=0;i<$rnd;i=i+1 ))
do
   s=`cat /proc/sys/kernel/random/uuid | base64`
   ws="${ws} ${s}"
done

ws=`echo $ws | base64`
len=`expr length "$ws"`
let "size=$size+$len"
let "filesize=$filesize+$len"
stdbuf -o0 echo $ws >> $F1
stdbuf -o0 echo $ws >> $F2
stdbuf -o0 echo $ws >> $F3

done

rm -rf $F1
rm -rf $F2
rm -rf $F3
wait
exit