Given the following page reference string, count the number of page faults for a memory capacity...
Given the following page reference string, count the number of page faults for a memory capacity of 4 frames using the CLOCK page replacement algorithm. Reference string: 0, 1, 2, 3, 0, 1, 4, 0, 1, 2, 3, 4, 5, 6, 3, 2, 1, 0. Show all work.
Homework Answers
When a frame is referred again, it's second chance bit will be set to 1. This second chance bit will be the preference so that they will not be replaced even though these are the first pages to enter. If a page gets a second chance, it's second chance bit will be again set to 0. If second chance of all bit is set to 0, then FIFO policy will be used for replacement.
| Ref.String | 0 | 1 | 2 | 3 | 0 | 1 | 4 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 3 | 2 | 1 | 0 |
| F#1 | 0 | 0 | 0 | 0 |
0(1) (1) :second chance Bit set to 1. |
0(1) | 0 | 0(1) | 0(1) | 0 | 3 | 3 | 3 | 3(1) | 3(1) | 3 | 0 | |
| F#2 | 1 | 1 | 1 | 1 | 1(1) | 1 | 1 | 1(1) | 1 | 1 | 1 | 5 | 5 | 5 | 5 | 1 | 1 | |
| F#3 | 2 | 2 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 4(1) | 4(1) | 4 | 4 | 2 | 2 | 2 | ||
| F#4 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 6 | 6 | 6 | 6 | 6 | |||
| Hit/Fault | F | F | F | F | Hit | Hit | F | Hit | Hit | F | F | Hit | F | F | Hit | F | F | F |
Total # of Page Fault = 12.
If you have any questions comment down and please? upvote thanks...
Add Answer to:
Given the following page reference string, count the number of
page faults for a memory capacity...
Operating Systems Virtual Memory Management question Given the reference string of page accesses below, and an...
Operating Systems Virtual Memory Management question Given the reference string of page accesses below, and an allocation of 3 page frames, and the Least-Frequently Used page replacement algorithm. Show the content of the frames as the references are processed, and indicate which references cause page faults. Record the #page faults. ref 1 2 3 5 4 2 5 3 4 5 1 1 3 1 4 frame1 frame2 frame3 fault(X) #faults =
Consider the following page reference string for a three-frame memory: 6 3 1 5 3 4...
Consider the following page reference string for a three-frame memory: 6 3 1 5 3 4 3 2 5 4 3 4 5 1 5 3 1 6 3 1 Apply LRU, Clock and FIFO algorithms What will be the number of page faults for each replacement algorithm note that page faults at the beginning are counted?
Show how many page faults are will occur if a process access the following page sequence...
Show how many page faults are will occur if a process access the
following page sequence (reference string). Assume OS is using a
fixed number of 4 pages allocated for the process and is using
First-In-First-Out (FIFO) algorithm.
Count the faults acquired in the page table initialization.
Show your work by completing the following table:
Show how many page faults are will occur if a process access the following page sequence (reference string). Assume OS is using a fixed number...
Question 7 30 pts Consider the following page reference string: {1,2,3,4,1,5,6,2,1,2,3,7,6,3} Assume that the system has...
Question 7 30 pts Consider the following page reference string: {1,2,3,4,1,5,6,2,1,2,3,7,6,3} Assume that the system has 4 page frames allocated to these 7 pages. Follow the page placement and replacement using the following three replacement algorithms: • LRU replacement • FIFO replacement • Optimal replacement How many page faults will occur for these three algorithms? Assume that all frames are initially empty, so your first unique pages will all cost one fault each USE ENCLOSED TABLES! Show all calculations in...
1. Given a reference string generated by a process, how many page faults occur with N...
1. Given a reference string generated by a process, how many page faults occur with N frames if page replacement is by LRU, or FIFO, or the optimal algorithm? please explain
Given the following page-reference string, show the allocation of 3 frames of memory using FIFO ,...
Given the following page-reference string, show the allocation of 3 frames of memory using FIFO , LRU and OPT. How many page faults for FIFO, LRU and OPT? 3,1,2,1,3,1,4,1,3,2,4,2,5,6,4,6,2,1,6,5
Consider the following reference string: How many page faults would this string produce under the FIFO...
Consider the following reference string: How many page faults would this string produce under the FIFO page replacement strategy with three frames? How many page faults would this string produce under the OPT replacement strategy with three frames? How many page faults would this string produce under the LRU replacement strategy with three frames?
Consider the following page reference string: 1, 0, 3, 2, 6, 4, 5, 0, 1, 7,...
Consider the following page reference string: 1, 0, 3, 2, 6, 4, 5, 0, 1, 7, 7, 6, 4, 3, 5, 2, 1, 3, 2, 7 Assuming demand paging with three frames, how many page faults would occur for the following replacement algorithms? Show your work. (a) LRU replacement (b) FIFO replacement (c) Optimal replacement
find the number of page faults that occur during FIFO, OPT, LRU cafe replacement with 4...
find the number of page faults that occur during FIFO, OPT, LRU cafe replacement with 4 frames. Mention the number of page faults after each replacement strategy. If you find any ties replace the page with the highest numeric value. Here is the reference of string pages. 9 2 6 9 6 0 5 5 6 0 3 1 6 1 0
Show how many page faults are will occur if a process access the
following page sequence (reference string). Assume OS is using a
fixed number of 4 pages allocated for the process and is using
First-In-First-Out (FIFO) algorithm.
Count the faults acquired in the page table initialization.
Show your work by completing the following table:
Show how many page faults are will occur if a process access the following page sequence (reference string). Assume OS is using a fixed number...
Question 7 30 pts Consider the following page reference string: {1,2,3,4,1,5,6,2,1,2,3,7,6,3} Assume that the system has 4 page frames allocated to these 7 pages. Follow the page placement and replacement using the following three replacement algorithms: • LRU replacement • FIFO replacement • Optimal replacement How many page faults will occur for these three algorithms? Assume that all frames are initially empty, so your first unique pages will all cost one fault each USE ENCLOSED TABLES! Show all calculations in...
Consider the following reference string: How many page faults would this string produce under the FIFO page replacement strategy with three frames? How many page faults would this string produce under the OPT replacement strategy with three frames? How many page faults would this string produce under the LRU replacement strategy with three frames?
Most questions answered within 3 hours.
-
What are the characteristics and behavior of an ethical
manager?
Explain, in your words, what ethics...
asked 16 minutes ago -
1. Which of the following is NOT an argument that McMahan uses
to show that jus...
asked 37 minutes ago -
A crate slides up a frictionless slope. At the end of 3 seconds
its velocity is...
asked 55 minutes ago -
Use the following information to answer the next seven
questions.
Suppose there are three potential states...
asked 50 minutes ago -
If we only have interstitial and substitutional diffusion, then
what do we consider the process of...
asked 1 hour ago -
You look at yourself in a shiny 9.6-cm-diameter Christmas tree
ball.
If your face is 21.0...
asked 1 hour ago -
If we were to measure the relaxation time of a muscle after
undergoing tetanus compared to...
asked 1 hour ago -
4CO(g) + 8H2(g) -----> 3CH4(g) +
CO2(g) + 2H2O(l)
Use the following data as needed to...
asked 1 hour ago -
without using map
1. Write a C++ program to find out the top 10 words in...
asked 1 hour ago -
1)Calculate the percent ionization of a
0.330 M solution of hypochlorous
acid.
% Ionization = %...
asked 1 hour ago -
1a) How many grams of K2SO4 are in 250mL
of 0.11 M K2SO4 solution?
_____ g...
asked 1 hour ago -
The vapor pressure of a solution containing 38.7 g glycerin
(C3H8O3) in 146.2 g ethanol (C2H5OH)...
asked 1 hour ago