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Andrew S. Tanenbaum (OS) Edition 4 Exercise 2 Question 53 (Page No. 178)
Lakshman Patel RJIT
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Oct 25, 2019
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Consider a system in which it is desired to separate policy and mechanism for the scheduling of kernel threads. Propose a means of achieving this goal.
tanenbaum
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process-scheduling
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Lakshman Patel RJIT
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Lakshman Patel RJIT
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To help in the communication of the memory among the different users.
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Lakshman Patel RJIT
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Andrew S. Tanenbaum (OS) Edition 4 Exercise 2 Question 52 (Page No. 178)
A real-time system needs to handle two voice calls that each run every $6$ msec and consume $1$ msec of CPU time per burst, plus one video at $25$ frames/sec, with each frame requiring $20$ msec of CPU time. Is this system schedulable?
Lakshman Patel RJIT
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Lakshman Patel RJIT
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Lakshman Patel RJIT
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Oct 25, 2019
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Andrew S. Tanenbaum (OS) Edition 4 Exercise 2 Question 50 (Page No. 178)
A soft real-time system has four periodic events with periods of $50, 100, 200,$ and $250$ msec each. Suppose that the four events require $35, 20, 10,$ and $x$ msec of CPU time, respectively. What is the largest value of $x$ for which the system is schedulable?
Lakshman Patel RJIT
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Operating System
Oct 25, 2019
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Lakshman Patel RJIT
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tanenbaum
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Lakshman Patel RJIT
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Oct 25, 2019
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Andrew S. Tanenbaum (OS) Edition 4 Exercise 2 Question 49 (Page No. 178)
The aging algorithm with $a = 1/2$ is being used to predict run times. The previous four runs, from oldest to most recent, are $40, 20, 40,$ and $15$ msec. What is the prediction of the next time?
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Lakshman Patel RJIT
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Andrew S. Tanenbaum (OS) Edition 4 Exercise 2 Question 48 (Page No. 178)
For the above problem, can another video stream be added and have the system still be schedulable?
Lakshman Patel RJIT
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Oct 25, 2019
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