...e kernel what time it is or what CPU the caller is on. One frequently used system call is gettimeofday (2). This system call is called both directly by user-space applications a…...(2), clock_gettime (2), clock_nanosleep (2), getitimer (2), getrlimit (2), getrusage (2), gettimeofday (2), nanosleep (2), stat (2), time (2), timer_create (2), timerfd_create (…