#!/usr/local/bin/bash
# Usage: [sudo] loadcpu.sh [number_of_cpu_cores_to_load [number_of_seconds] ]
# Default is 1 CPU core for 300 seconds (5 minutes)
function exit_function {
	for p in $pids; do kill $p; done
	echo; echo Ending temps from sysctl
        sysctl dev.cpu | grep temperature
}
pids=""
cpus=${1:-1}
seconds=${2:-300}
echo Loading $cpus CPU cores for $seconds seconds
echo; echo Starting temps from sysctl
sysctl dev.cpu | grep temperature
trap exit_function 0
for ((i=0;i<cpus;i++)); do while : ; do : ; done & pids="$pids $!"; done
echo; echo Temperatures from ipmitool sensor data repository:
SEC=1
while [ $SEC -lt "$seconds" ]; do
	ipmitool sdr get "CPU Temp" | grep "Sensor Reading"
	sleep 2
	let SEC=SEC+2
done