Methods to monitor process´s Spatial and temporal consumption

Exact values of Spatial and temporal consumption are needed when we are judging the space and time complexities of an algorithm, but few researchers paid attention on whether the their methods were valid. In this paper, we discussed about some key concepts involved in the process of monitoring process´s spatial and temporal consumption, and then we explained and distinguished those concepts. Further, we provided respectively methods for the processes running on Windows and Linux and demonstrated those methods. Finally, we proved correctness of those method by simulating the real situation a process was running.