Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Programming Language Expert

Objective: The purpose of this programming project is to explore page replacement algorithms. This can be accomplished by developing a simple simulator that implements various page replacement algorithms and determining the number of page faults for a given reference string. A secondary objective of this assignment is to reinforce good software project design by using multiple source code modules in your solution.
 
Project Specifications:
 
Develop a simulator program that will enable you to compare and contrast the operation of various page replacement strategies discussed in class (plus an additional page replacement algorithm discussed here). For a given page reference string, your program will output the number of page faults for a given page replacement algorithm. The name of your executable must be "simpager".
 
Input to your program will be from standard input. There is to be no "user prompts" in your program. Program output will be to standard output. Your program must follow a standardized input format. The first line is the page reference string. Each number in the page reference string is separated by whitespace and is terminated by a new line. The page reference string is on 1 (one) and only 1 (one) line. The second line is the number of frames allocated to a specific process. The remaining lines will be string mnemonics; one for each page replacement algorithm.

Output from your program will be the following. Echo the page reference string up to 20 page references per line. Echo the number of frames allocated to the process. Print the page replacement algorithm "mnemonic" and the number of page faults. Although your program reads from standard input and prepares to standard output, it is suggested that you have several program data files that you can re-direct standard input and thus have your program read.

The page replacement algorithms and their respective mnemonics to be implemented are the following:

• FIFO: First in first out page replacement. See text for description.

• LRU: Least recently used page replacement See text for description.

• OPT: Optimal page replacement. See text for description.

• RAND: Random page replacement. This is an easy to implement, low-overhead page replacement strategy. Under this strategy, each page in main memory has an equal likelihood of being selected for replacement. One problem with RAND is that it may accidentally select as the next page to replace the page that will be referenced next. A benefit of RAND is that it makes replacement decisions quickly and fairly. However, because of this "hit-or-miss" approach, RAND is rarely used in practice. 
 
Test your program with this input:
 
7  0  1  2  0  3  0  4  2  3  0  3  2  1  2  0  1  7  0  1
3
FIFO
LRU

 
Correct Output:
 
$  simpager  <  testcase1.txt
Page  Reference  String:
7  0  1  2  0  3  0  4  2  3  0  3  2  1  2  0  1  7  0  1
Number  of  Frames:  3
FIFO:  15
LRU:  12
$

 
Also, test your program with this input:
 
1 2 3 4 1 2 5 1 2 3 4 5
3
FIFO
LRU
OPT
RAND

Programming Language, Programming

  • Category:- Programming Language
  • Reference No.:- M91447

Have any Question? 


Related Questions in Programming Language

Business app programmingwrite the following programwrite a

Business App Programming Write the following Program: Write a Java program to the form below. The program must work with decimal numbers and each button must work correctly. The result must be done in a popup window. The ...

Develop a pac and flowcharts for a program that does the

Develop a PAC and flowcharts for a program that does the following. A warehousing company has contracted you to develop a computer program that determines shipping costs for items by size. If the item is over 4 cubic fee ...

Pseudocodes and flowchartxyz company employees work for 8

Pseudocodes and flowchart XYZ company employees work for 8 hours a day and 40 hours in a week. The employees are paid overtime at the rate of half of the salary. Employees who get more than 15000 must pay a supplementary ...

Assignmentjason has opened a coffee shop at the beach and

Assignment Jason has opened a coffee shop at the beach and sells coffee in three sizes: small (9oz) medium (12oz) and large (15oz). Small cost is $1.75 medium costs $1.90 and large costs $2.00. Write a menu driven progra ...

Assignmentmany applications impose rules for user passwords

Assignment Many applications impose rules for user passwords. Write a program that utilizes methods to check a user entered password ***** print out either "Valid" or "Invalid", based on the following rules: • Password * ...

Assignmentpart 1 instance data and methods belong to

Assignment Part 1 Instance data and methods belong to objects (which are class members) and static data and methods belong to a class as a whole. Consider the real-life class named StatelnTheUnitedStates. Name some real- ...

Suppose the heap consists of exactly the nine cars on three

Suppose the heap consists of exactly the nine cars on three trains shown in given figure (i.e., ignore the ellipses). Object o in car 11 has references from cars 12, 23, and 32. When we garbage collect car 11, where migh ...

Rainfall programwrite a rainfall program that stores the

Rainfall Program Write a RainFall program that stores the total rainfall for each of 12 months into an array of doubles. The program should have methods that return the following: * The total rainfall for the year * The ...

Design an abstract class called shape this class must

Design an abstract class called Shape. This class must contain a single constructor that accepts a single numeric value that can be used to calculate various values, one of which is area. Include an abstract method calle ...

Test 1you are permitted the use of pre-written notes

Test 1 You are permitted the use of pre-written notes, previous labs and the textbook. You are NOT permitted the help of the Lab TA or the Internet. Any cheating will result in a report Academic Integrity Violation and a ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen