Table of Contents
- 1 What is starvation in Dining Philosophers Problem?
- 2 Which of the following is the solution to avoid deadlock for dining philosopher problem?
- 3 What is the solution to starvation?
- 4 How does a deadlock occur in a dining philosopher problem?
- 5 How deadlock is possible with the Dining Philosophers Problem?
- 6 What is starvation problem?
- 7 What is the solution to the dining philosopher problem?
- 8 How does a philosopher eat?
What is starvation in Dining Philosophers Problem?
Dining Philosophers, with N=4. The problem is how to design a discipline of behavior (a concurrent algorithm) such that no philosopher will starve; i.e., each can forever continue to alternate between eating and thinking, assuming that no philosopher can know when others may want to eat or think.
How can we prevent deadlock in philosopher’s problem?
Strategy: Every philosopher must request each of their (shared) chopsticks from a waiter, who may refuse the request at first in order to avoid a deadlock. For convenience, we assume that all philosophers request their left chopstick first, then their right chopstick.
Which of the following is the solution to avoid deadlock for dining philosopher problem?
ensure that all philosophers pick up the left fork before the right fork. ensure that all philosophers pick up the right fork before the left fork.
Why might a group of dining philosophers starve?
This is a state in which each philosopher has picked up the fork to the left, and is waiting for the fork to the right to become available. Resource starvation might also occur independently of deadlock if a particular philosopher is unable to acquire both forks because of a timing problem.
What is the solution to starvation?
A possible solution to starvation is to use a scheduling algorithm with priority queue that also uses the aging technique. Aging is a technique of gradually increasing the priority of processes that wait in the system for a long time.
How do you solve the Dining Philosophers Problem?
Solution of Dining Philosophers Problem A solution of the Dining Philosophers Problem is to use a semaphore to represent a chopstick. A chopstick can be picked up by executing a wait operation on the semaphore and released by executing a signal semaphore.
How does a deadlock occur in a dining philosopher problem?
The dining philosophers problem describes a group of philosophers sitting at a table doing one of two things – eating or thinking. Deadlock could occur if every philosopher holds a left chopstick and waits perpetually for a right chopstick (or vice versa).
What is a deadlock in the Dining Philosophers Problem?
Deadlock occurs when a system is unable to make progress because threads are blocking each other. Consider the “dining philosophers” problem: n philosophers are sitting around a table, wanting to eat. Between each pair of philosophers is a single chopstick; a philosopher needs two chopsticks to eat.
How deadlock is possible with the Dining Philosophers Problem?
Which kind of problems occur in dining philosopher?
The dining philosopher’s problem is the classical problem of synchronization which says that Five philosophers are sitting around a circular table and their job is to think and eat alternatively. A bowl of noodles is placed at the center of the table along with five chopsticks for each of the philosophers.
What is starvation problem?
Starvation is the problem that occurs when low priority processes get jammed for an unspecified time as the high priority processes keep executing. A steady stream of higher-priority methods will stop a low-priority process from ever obtaining the processor.
What is the solution to starvation Mcq operating system?
Q. | What is the solution to starvation? |
---|---|
B. | the number of resources must be included in resource preemption |
C. | resource preemption be done instead |
D. | all of the mentioned |
Answer» a. the number of rollbacks must be included in the cost factor |
What is the solution to the dining philosopher problem?
There are many solutions to the dining philosopher problem, but it happens that some of the solutions have a problem that is called Starvation.
What is starvation in philosophy?
Let us define it; starvation happens when a particular philosopher is not getting a chance to eat at regular intervals, there could be a scenario that one of the philosophers might overeat eventually leading to starvation of another philosopher, even though this addresses the deadlock issue.
How does a philosopher eat?
Every Philosopher needs two forks in order to eat. Every Philosopher may pick up the forks on the left or right but only one fork at once. Philosophers only eat when they had two forks. We have to design such a protocol i.e. pre and post protocol which ensures that a philosopher only eats if he or she had two forms.
How can we solve the problem of deadlock in philosophy?
One way to tackle the above situation is to limit the number of philosophers entering the room to four. By doing this one of the philosophers will eventually get both the fork and execute all the instruction leading to no deadlock. In this solution, we somehow interfere with the given problem as we allow only four philosophers.