CPU和内存消耗脚本

消耗指定核数CPU

#! /bin/sh 
# filename killcpu.sh
if [ $# -ne 1 ] ; then
  echo "USAGE: $0 <CPUs>|stop"
  exit 1;
fi

stop()
{
while read LINE
  do
    kill -9 $LINE
    echo "kill $LINE sucessfull"
  done < pid.txt
cat /dev/null > pid.txt
}

start()
{
  echo "u want to cpus is: "$1
  for i in `seq $1`
do
  echo -ne " 
i=0; 
while true
do
i=i+1; 
done" | /bin/sh &
  pid_array[$i]=$! ;
done

for i in "${pid_array[@]}"; do
  echo 'pid is: ' $i ';';
  echo $i >> pid.txt
done
}

case $1 in
  stop)
    stop
  ;;
  *)
  start $1
;;
esac

占用1G内存1小时

#!/bin/bash
mkdir /tmp/memory
mount -t tmpfs -o size=1024M tmpfs /tmp/memory
dd if=/dev/zero of=/tmp/memory/block
sleep 3600
rm /tmp/memory/block
umount /tmp/memory
rmdir /tmp/memory