Examples of Disk Scheduling Algorithms
Work Queue
: 23, 89, 132, 42, 187
there are 200 cylinders numbered from 0 - 199
the diskhead stars at number 100
FCFS
total time is estimated by total arm motion
SSTF
SCAN
assume we are going inwards (i.e., towards 0)
LOOK
reduce variance compared to SCAN
C-SCAN
C-LOOK
Howard Hamilton
Wed Feb 2 10:00:00 CST 2000