We provide three examples to calculate execution time of a C program: CPU time, wall clock time and clock time (precise wall clock time)

ask 4.3 Execution time of C program

We provide three examples to calculate execution time of a C program: CPU time, wall clock time and clock time (precise wall clock time). Note that usual wall clock time can display seconds only, and many C programs take less one second to execute, and therefore more precise clock time is needed.