Run a program several times and measure the average time spent to run the program in microseconds

testbench.sh

#!/bin/bash
sum=0;

for (( i = 0; i < 10; i++ )); do
	begin=`date +%s%N`

	#####################################################
	#############The Program Should Run Here#############
	#####################################################

	end=`date +%s%N`
	time_spent=$((end - begin))
	sum=$((sum + time_spent))
	
	echo "Begin: $(($begin/1000)).$(($begin%1000))"
	echo "End:   $(($end/1000)).$(($end%1000))"
	echo "Time:  $(($time_spent/1000)).$(($time_spent%1000))"
	echo "Avg:   $(($sum/$((1000*(($i+1)))))).$(((($sum%1000))*(($i+1))))"
	echo "Sum:   $(($sum/1000)).$(($sum%1000))"
	echo
done