(original) (raw)

Elapsed real time for program P1 Program P1 started P1 preempted for P2 P2 preempted for P3 P1 brought back on CPU P1 requested I/O. Put in wait. P2 on CPU After I/O for P1 done, P1 brought on CPU Program P1 completed CPU Time P2 P1 P3 P1 P2 P1