Array-initialization loops using lru replacement algorithm, Operating System

Assignment Help:

Q. Consider the two-dimensional array A:

int A[][] = new int[100][100];

Whereas A [0][0] is at location 200 in a paged memory system with pages of size 200. A little process is in page 0 (locations 0 to 199) for manipulating the matrix thus every instruction fetch will be from page 0.

For three page frames how various page faults are generated by the following array-initialization loops using LRU replacement and assuming page frame 1 has the process in it and the other two are initially empty?

a.

for (int j = 0; j < 100; j++)

for (int i = 0; i < 100; i++)

A[i][j] = 0;

b.

for (int i = 0; i < 100; i++)

for (int j = 0; j < 100; j++)

A[i][j] = 0;

Answer:

a. 50

b. 5,000


Related Discussions:- Array-initialization loops using lru replacement algorithm

What are the advantages of multi threading?, What are the advantages of mul...

What are the advantages of multi threading?  Multithreading a code can have several advantages. Improve application responsiveness --Any program in which var

Processes- making the system more responsive and useful, Processes- Making ...

Processes- Making the System More Responsive and Useful A method by definition build up of a code execution and resource ownership. A process has two main characteristics, code

How can the deadlock be prevented?, How can the deadlock be prevented? ...

How can the deadlock be prevented? To evade deadlocks first we will have to obtain the information about how resources are to be requested. And as well we should make sure that

Quick, why we say " OS is a resource allocator" and “OS is a control progr...

why we say " OS is a resource allocator" and “OS is a control program"?

Define what is dispatcher, Define what is Dispatcher In the Worker Mode...

Define what is Dispatcher In the Worker Model, it is the task of the Dispatcher to spawn a thread for every client-to-server connection. The Dispatcher acts as the go-between o

Linear programming problem, A paper mill produces two grades of paper viz.,...

A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 ton

Task decomposition and data decomposition, Discuss the concepts of  task de...

Discuss the concepts of  task decomposition  and  data decomposition  within the context of parallel programming. Parallel programming or parrelel computing is the simultaneo

Explain the fork function, Explain the Fork Function Fork function caus...

Explain the Fork Function Fork function causes a new process to be created. The calling progress is duplicated as an exact copy (called the child process) that differs only in

Describe virtual memory, What is virtual memory? Virtual memory is a me...

What is virtual memory? Virtual memory is a method that allows the execution of processes that might not be completely in memory. It is the separation of user logical memory fr

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd