Chapter 11, Problem 23E

Explanation of Solution

Performance of the system:

• System performance is considered as one of main factor of a processor.
• It is used to determine the speed a problem can be solved.
• It is also used to determine the factors such as number of problems that can be allocated at particular amount of time and also the number of problems that can be handled by the processor.
• The speed of the CPU is a key factor that often decides the performance of the system.
• Disk access speed is considered to be another factor that is used to determine the performance.
• The read write operation that is performed on the disk (milliseconds) is considered to take significantly longer access time in comparison with that of the operation that is performed in a CPU (nanoseconds).

SSTF (Shortest seek time first):

To improve the performance of the disk access they are different ways present.

The algorithm that determines the order in which the data access made in the disk will be beneficial is calculated.

One such kind of algorithm is Shortest seek time first (SSTF), the algorithm will make the access being done from the track that is nearest to its current position and will proceed from that location and moves on...