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Q1) Consider a demand-paging system with a paging disk that has an average access and transfer time of 20milliseconds. Addresses are translated through a page table inmainmemory, with an access time of 1microsecond per memory access. Thus, eachmemory reference through the page table takes two accesses. To improve this time, we have added an associativememory that reduces access time to one memory reference, if the page-table entry is in the associative memory. Assume that 80 percent of the accesses are in the associative memory and that, of the remaining, 10 percent (or 2 percent of the total) cause page faults.What is the effective memory access time?
i. Deadlock avoidance ii. Deadlock prevention and iii. Deadlock detection
The premise of Project 2 is to create your own shell. Your shell will be launchable from a terminal window and act similar to the existing shell.
The purpose of this program is to change such that it makes use of the IPC facilities provided by UNIX.
What (if any) relation holds between the following pairs of sets of algorithms (a) Priority and SJF (b) Multilevel feedback queues and FCFS
Explain the concepts of consumable and reusable resources
What is minimum number of page faults for the optimal page replacement strategy? Please show how the page is placed and how page faults occur.
Write a multi-threaded program to solve producer and consumer problem
Implement the parser in a separate file. Implement the main parser function in a separate file main.c
Discuss an application that would benefit from the use of barrier synchronization
Discuss and provide examples of the following concurrency issues associated with an OS: 1. Mutual exclusion 2. Deadlock 3. Starvation
Formulate the above in terms of a Linear Programming problem Solve this linear program graphically. Determine the quantity of each type of toaster that will maximise the maximum profit
Explain the following terms in relation to linear programming problems- (1) decision variables (2) objective function
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