Question: A system is currently executing 3 user processes P1, P2 and P3. Each process requires certain number of instances of a resource type R

A system is currently executing 3 user processes P1, P2 and P3. Each process requires certain number of

A system is currently executing 3 user processes P1, P2 and P3. Each process requires certain number of instances of a resource type R - P1 requires a maximum of 2 instances of resource type R, P2 requires a maximum of 3 instances of resource type R, P3 requires a maximum of 4 instances of resource R. The problem is to determine how many total number of instances of resource type R will be required to avoid deadlocks. Note: The ordering in which resources are requested can make a difference. Let there be 4 total instances of resource type R. Let us assume that P1, P2, P3 are each allocated one instance of R. IF P2 or P3 get the last available instance, a deadlock will ensue. What is the minimum number of units of R that ensures that a deadlock cannot occur? Ans: Explanation:

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

This problem is related to resource allocation in a system and the avoidance of deadlocks which occur when resources are inadequately managed such tha... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Programming Questions!

4.) A random sample of 29 rainbow trout caught at Brainard Lake, Colorado, had mean length = 12.3 inches with sample standard deviation = 2.7 inches. a.) Find a 95% confidence interval for the...

Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...

List three specific parts of the Case Guide, Objectives and Strategy Section (See below) that you had the most difficulty understanding. Describe your current understanding of these parts. Provide...

PLEASE READ CAREFULLY 1) Suppose that three processes, P1, P2 and P3, are running in a multiprogramming environment. P1 executes for 10 units of time, waits on I/O for 10 units of time, and then...

Operating System Question! 1. (10 points) Let's assume we have a system with a single CPU. There are three processes (P1, P2, and P3) running the following logic. Process state can be one of the...

Question 2 - Context Switch ( 2 2 points ) ( This question is related to ILO 2 - "explain the principles behind the core function: Process Management", and ILO 4 - "demonstrate knowledge in applying...

7. (12 marks) Assume the following: (a) Four (4) processes: P1, P2, P3, P4 share the following data: Shared Data Data set Semaphore seml initialized to 1; Semaphore sem2 initialized to 1; Integer xl...

Consider a system employing a deadlock - avoidance scheme based on pre - declaration of resource needs for various processes. In particular, the resource needs of the processes are represented by...

In this assignment, you are asked to build a mini OS ( shell + scheduler ) . We talked about a user process could be characterized by alternative CPU and IO operations, i . e . , any process consists...

I am also providing the test case to check if the code is done correctly. Please write the following java code as instructed. I will upvote if the code runs and gives the correct output. Thank you in...

The semicircular thin hoop of weight W and center of gravity at G is suspended by the small peg at A.A horizontal force P is slowly applied at B. If the hoop begins to slip at A when ? = 30 o ,...

a. Draw the most stable conformer of pentane for rotation about the C-2-C-3 bond. b. Draw the least stable conformer of pentane for rotation about the C-2-C-3 bond.

jacondo files head of household and can claim his daughters, saravia 1 6 and lolita 2 3 , as dependents.

The 10-ft flagpole AC forms an angle of 30° with the z axis. It is held by a ball-and-socket joint at C and by two thin braces BD and BE. Knowing that the distance BC is 3 ft, determine the...

A bearing used in an automotive application is suppose to have a nominal inside diameter of 1.5 inches. A random sample of 25 bearings is selected and the average inside diameter of these bearings is...

Neglecting friction, determine (a) The value of Î¸ for which the tension in cable ABD is 3P/4, (b) The corresponding reaction at C.

A Howe scissors roof truss is loaded as shown. Determine the force in members DF, DG, and EG. 2 w 2 2 m

If a solid cylinder of glass or clear plastic is placed above the words LEAD OXIDE and viewed from above as shown in Figure Q36.9, the LEAD appears inverted but the OXIDE does not. Explain. LEAD...

in e-commerce, its size, market reach, and organizational structure.Statement of the Problem: Clearly articulate the problem of low employee engagement at Amazon. Provide context to the issue and why...

For a single-level page table, how many page table entries (PTEs) are needed? How much physical memory is needed for storing the page table? In this exercise, we will examine space/time optimizations...

This exercise explores the differences between the MIP and x86 instruction sets. The following table contains x86 assembly code. For the code in the table above, what is the equivalent MIPS for the...

Repeat 4.9.5, but now implement both of these signals. Problems 4.9.5 For the datapath from Figure 4.24, draw the logic diagram for the part of the control unit that implements just the first signal....

In Figure 9P-1, what is the dominant strategy for Player A? What is the dominant strategy for Player B?

Advertising often features testimonials from satisfied customers, who happily describe the characteristics of the goods or services they received. Why do advertisers use this technique rather than a...

A towns two gas stations are each considering lowering prices to attract more sales. How this affects the profits for each gas station depends on whether the other also lowers prices. The decision...