A program has the following page reference string 0 1 2 3 3 4 2 4...
A program has the following page reference string 0 1 2 3 3 4 2 4 5 3 3 4 6 2 5 6 If we allocate 3 page frames to the program
1. Please draw a figure to show the page allocation/replacement.
2. How many page faults will be generated?
Homework Answers
Here i am doing first in first out page replacement:
Total references: 16
Hits: 9
page Faults: 7
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A program has the following page reference string 0 1 2 3 3 4 2
4...
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
Consider the following page reference string: 1, 2, 3, 4, 2, 1, 5, 6, 2, 1,...
Consider the following page reference string: 1, 2, 3, 4, 2, 1, 5, 6, 2, 1, 2, 3, 7, 6, 3, 2, 1, 2, 3, 6. How many page faults would occur for the following replacement algorithms, assuming one, two, three, four, five, six, or seven frames? Remember all frames are initially empty, so your first unique pages will all cost one fault each. • LRU replacement • FIFO replacement • Optimal replacement
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...
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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.
9.3 (3 points for correct answer, 7 points for steps) Consider the following page reference string:...
9.3 (3 points for correct answer, 7 points for steps) Consider the following page reference string: 6, 1, 5, 5, 4, 6, 2, 6, 0 , 1, 7, 2, 3, 1, 4, 6, 7, 2, 5, 2,. Assuming demand paging with three frames, how many page faults would occur for the following replacement algorithms? • LRU replacement • FIFO replacement • Optimal replacement
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
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 =
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Consider the following page reference string: 5, 3,7,5, 3, 6, 1, 0,4,6,2,0,1,2,7,3,1,4,7,2 Assuming demand paging with three frames, how many page faults would occur for the following replacement algorithms!? LRU replacement FIFO replacement Optimal replacement
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?
1. Consider a reference string: 1 2345 246315721 1 33456554324 There are a total of 4...
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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...
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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?
1. Consider a reference string: 1 2345 246315721 1 33456554324 There are a total of 4 page frames available. Construct the page replacement table for FIFO algorithm and record how many page faults. Fill in the page table after each reference. a. 12 3 45 2 463 15 7 21 1 3 3 45 655 432 4 Construct the page replacement table for LRU algorithm and record how many page faults. Fill in the page table after each reference. b....
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