Apologies, I made a mistake at the end of my output log
spawn 'cal', pid0.NEW->READY, transition takes 0usecs
Total Time: 0 pid0.READY->RUNNING, transition takes 5usecs
Total Time: 1, no process running
Total Time: 2, no process running
Total Time: 3, no process running
Total Time: 4, no process running
Total Time: 5, no process running
Total Time: 5 pid0 now on CPU, gets new timequantum
Total Time: 6, CPU Counting, CPU Count=1
Total Time: 7, CPU Counting, CPU Count=2
Total Time: 8, CPU Counting, CPU Count=3
Total Time: 9, CPU Counting, CPU Count=4
Total Time: 10, CPU Counting, CPU Count=5
Total Time: 11, CPU Counting, CPU Count=6
Total Time: 12, CPU Counting, CPU Count=7
Total Time: 13, CPU Counting, CPU Count=8
Total Time: 14, CPU Counting, CPU Count=9
Total Time: 15, CPU Counting, CPU Count=10
Total Time: 16 write 2000bytes, pid0.RUNNING->BLOCKED, transition takes 10usecs
Total Time: 17
Total Time: 18
Total Time: 19
Total Time: 20
Total Time: 21
Total Time: 22
Total Time: 23
Total Time: 24
Total Time: 25
Total Time: 26
Total Time: 26 device.terminal acquiring DATABUS, writing 2000 bytes, will take 20 usecs
Total Time: 27
Total Time: 28
Total Time: 29
Total Time: 30
Total Time: 31
Total Time: 32
Total Time: 33
Total Time: 34
Total Time: 35
Total Time: 36
Total Time: 37
Total Time: 38
Total Time: 39
Total Time: 40
Total Time: 41
Total Time: 42
Total Time: 43
Total Time: 44
Total Time: 45
Total Time: 46
Total Time: 46 device.terminal completed writing, DATABUS now idle
Total Time: 46 pid0.BLOCKED->READY, transition takes 10usecs
Total Time: 47
Total Time: 48
Total Time: 49
Total Time: 50
Total Time: 51
Total Time: 52
Total Time: 53
Total Time: 54
Total Time: 55
Total Time: 56
Total Time: 56 pid0.READY->RUNNING, transition takes 5usecs
Total Time: 57, no process running
Total Time: 58, no process running
Total Time: 59, no process running
Total Time: 60, no process running
Total Time: 61, no process running
Total Time: 61 pid0 now on CPU, gets new timequantum
Total Time: 62, CPU Counting, CPU Count=11
Total Time: 63, CPU Counting, CPU Count=12
Total Time: 64, CPU Counting, CPU Count=13
Total Time: 65, CPU Counting, CPU Count=14
Total Time: 66, CPU Counting, CPU Count=15
Total Time: 67, CPU Counting, CPU Count=16
Total Time: 68, CPU Counting, CPU Count=17
Total Time: 69, CPU Counting, CPU Count=18
Total Time: 70, CPU Counting, CPU Count=19
Total Time: 71, CPU Counting, CPU Count=20
Total Time: 72 exit, pid0.RUNNING->EXIT, transition takes 0usecs
Measurements: 72 27
However my question still stands about the read write calculations.
