Determine waiting and average waiting time of CPU, Computer Engineering

Assignment Help:

CPU burst time indicates the time, the process needs the CPU. The following are the set of processes with their respective CPU burst time (in milliseconds).

Processes CPU-burst time

P1 10

P2 5

P3 5

Calculate the average waiting time if the process arrived in the following order:

(i) P1, P2 & P3 (ii) P2, P3 & P1.

By considering the FCFS scheduling

Process Burst Time

P1 10

P2 5

P3 5

(i) Assume that the processes arrive in the order as: P1, P2 and P3

The Gantt chart for the schedule given below:

Waiting time for P1 = 0; P2 = 10 and P3 = 15

Average waiting time is: (0 + 10 + 15)/3 = 8.33 unit of time

(ii) Assume that the processes arrive in the sequence P2, P3, P1. the Gantt chart for the schedule given below:

584_the average waiting time 2.png

Waiting time for P1 = 10; P2 = 0 and P3 = 5

Average waiting time is: (10 + 0 + 5)/3 = 5 unit of time.

Related Discussions:- Determine waiting and average waiting time of CPU

User compatibility & appropriateness of inputs and outputs, User Compatibil...

User Compatibility & Appropriateness of Inputs and Outputs User compatibility - this is the degree to which the machine works towards task completion in way that suits the u

What are the advantages of using xml over html, What are the advantages of ...

What are the advantages of using XML over HTML? The root cause of the problem lies in HTML (Hyper Text Mark-up Language), the defacto standard for web publication. The main pr

Define entry section and exit section, Define entry section and exit sectio...

Define entry section and exit section. The critical section problem is to design a protocol that the processes can use to cooperate. Every process must request permission to e

Computer organization, using one-address instructions,write a program to co...

using one-address instructions,write a program to compute X=A-BxC

Quantity amounts (data type quan), A field containing quantity amounts (dat...

A field containing quantity amounts (data type QUAN) must be assigned to a reference table and a reference field. Explain? As a reference table, a system table having all the v

Propositional logic, Propositional Logic: This is a fairly restrictive...

Propositional Logic: This is a fairly restrictive logic, that allows us to be write sentences about ¬propositions - statements about the world - that can either be true or

Payment, how can get payment

how can get payment

What is strong-typing versus weak-typing, What is strong-typing versus weak...

What is strong-typing versus weak-typing? Which is preferred? Why? Strong type is checking the types of variables as early as possible, usually at compile time. Whereas weak ty

Explain flash devices, Explain Flash devices It is possible to read the...

Explain Flash devices It is possible to read the contents of a one cell, but it is only possible to write an whole block of cells Greater density which leads to superior cap

Benefits of traditional hard disks and cd-rom, Q. Benefits of traditional h...

Q. Benefits of traditional hard disks and CD-ROM? CD-ROM is suitable for distribution of large amounts of data to a large number of users. CD-ROMs are a general medium these da

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages