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Consider a system having m resources of the same type. These resources are shared by 3 processes A, B, C which have peak time demands of 3, 4, 6 respectively. The minimum value of m that ensures deadlock will never occur is
- a)11
- b)12
- c)13
- d)14
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Consider a system having m resources of the same type. These resources...
Let the resources needed by P1 = R1 = 3, the number of resources needed by P2 = R2 = 4 and so on. Minimum resources required to ensure that deadlock will never occur = (R1-1) + (R2-1) + (R3-1) + 1 = (3-1) + (4-1) + (6-1) + 1 = 11 Option (A) is correct.
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Consider a system having m resources of the same type. These resources...
Given information:
- There are m resources of the same type.
- These resources are shared by 3 processes A, B, C.
- The peak time demands of the processes are 3, 4, and 6 resources respectively.
Understanding Deadlock:
Deadlock is a situation where two or more processes are unable to proceed because each is waiting for the other to release a resource. In other words, each process is holding a resource that another process needs, creating a circular dependency.
Calculating the minimum value of m:
To ensure deadlock never occurs, we need to prevent the possibility of circular dependency among the processes.
Identifying the maximum demand:
- Process A has a peak time demand of 3 resources.
- Process B has a peak time demand of 4 resources.
- Process C has a peak time demand of 6 resources.
Calculating the total maximum demand:
To prevent deadlock, we need to ensure that the system can satisfy the maximum demand of any process at any given time.
The total maximum demand is the sum of the peak time demands of all the processes. In this case, it is 3 + 4 + 6 = 13 resources.
Calculating the minimum value of m:
The minimum value of m should be greater than or equal to the total maximum demand to ensure deadlock never occurs.
In this case, the minimum value of m is 13 + 1 = 14 resources.
Conclusion:
Therefore, the minimum value of m that ensures deadlock will never occur is 14 resources. So, the correct answer is option A (14).
- There are m resources of the same type.
- These resources are shared by 3 processes A, B, C.
- The peak time demands of the processes are 3, 4, and 6 resources respectively.
Understanding Deadlock:
Deadlock is a situation where two or more processes are unable to proceed because each is waiting for the other to release a resource. In other words, each process is holding a resource that another process needs, creating a circular dependency.
Calculating the minimum value of m:
To ensure deadlock never occurs, we need to prevent the possibility of circular dependency among the processes.
Identifying the maximum demand:
- Process A has a peak time demand of 3 resources.
- Process B has a peak time demand of 4 resources.
- Process C has a peak time demand of 6 resources.
Calculating the total maximum demand:
To prevent deadlock, we need to ensure that the system can satisfy the maximum demand of any process at any given time.
The total maximum demand is the sum of the peak time demands of all the processes. In this case, it is 3 + 4 + 6 = 13 resources.
Calculating the minimum value of m:
The minimum value of m should be greater than or equal to the total maximum demand to ensure deadlock never occurs.
In this case, the minimum value of m is 13 + 1 = 14 resources.
Conclusion:
Therefore, the minimum value of m that ensures deadlock will never occur is 14 resources. So, the correct answer is option A (14).
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Consider a system having m resources of the same type. These resources are shared by 3 processes A, B, C which have peak time demands of 3, 4, 6 respectively. The minimum value of m that ensures deadlock will never occur isa)11b)12c)13d)14Correct answer is option 'A'. Can you explain this answer?
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