Calculate Execution time

execution_time.rb

def execution_time
	start = Time.now
	yield
	puts Time.now - start # Here you would probably log the elapsed time
end

execution_time do 
	1.upto(10000) do |i|
		i * 1 # LIke a for loop
	end
end

#Equivalent to - 


start = Time.now
1.upto(10000) do |i|
  i * 1
end
puts Time.now - start