Bài giảng Computer organization - Chapter: Performance

 CPU time (or CPU Execution time) is the time

between the start and the end of execution of a

given program. This time accounts for the time

CPU is computing the given program, including

operating system routines executed on the

program’s behalf and it does not include the time

waiting for I/O and running other programs.

 CPU time is a true measure of processor/memory

performance.

 Performance of processor/memory = 1 / CPU

time.