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

Bounded and unbounded buffer, Ask question #Minimum 100 difference between ...

Ask question #Minimum 100 difference between bounded and unbounded buffer words accepted#

What is long-term, What is long-term, medium-term, short-term? In a bat...

What is long-term, medium-term, short-term? In a batch system many processes are submitted than are able to be executed immediately. These processes are reel to a mass storage

How does an operating system make multiprogramming possible, How does an op...

How does an operating system make multiprogramming possible by using single processor?

Computers, What is operating system?

What is operating system?

Explain fifo page replacement, Explain FIFO page replacement A FIFO rep...

Explain FIFO page replacement A FIFO replacement algorithm associates with every page the time when that page was brought into memory. When a page must be changed, the oldest p

What is the kernel, What is the kernel? A more common explanation is th...

What is the kernel? A more common explanation is that the OS is the one program running at all times on the computer  usually known as the kernel, with all else being applicati

What is spooling, What is spooling? Spooling overlaps the I/O of single...

What is spooling? Spooling overlaps the I/O of single job with the computation of other jobs.

Find the optimal solution and optimal value, Find the optimal solution and ...

Find the optimal solution and optimal value of the following linear program. Use both (a) the enumerating the corner points method and (b) the iso-profit line method. Also identify

What is dispatcher? explain, Questiion 1 What is RTOS? What are its requir...

Questiion 1 What is RTOS? What are its requirements? Questiion 2 Explain the structural elements of a real time system mode Questiion 3 What is kernel? Explain abo

Define programming fundamentals for client- server developer, Define the Pr...

Define the Programming Fundamentals for Client- Server Developers Coding for client - server enforces good programming fundamentals. In order for applications to become client

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