Final answer:
Deadlock avoidance and deadlock prevention are techniques used in operating systems to handle the problem of deadlock. Deadlock prevention aims to design systems in a way that deadlock is not possible, while deadlock avoidance allows for the possibility of deadlock but prevents it from occurring.
Step-by-step explanation:
Deadlock avoidance and deadlock prevention are both techniques used in operating systems to handle the problem of deadlock. Deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.
Deadlock prevention aims to design systems in such a way that deadlock is not possible. This is achieved by implementing methods like resource allocation graphs, bankers algorithm, or mutual exclusion. Deadlock avoidance, on the other hand, allows for the possibility of deadlock but uses algorithms to dynamically detect and prevent potentially deadlocked states from occurring. One example of a deadlock avoidance algorithm is the Banker's algorithm.
In summary, while deadlock prevention focuses on designing systems to eliminate the possibility of deadlock, deadlock avoidance allows for the possibility of deadlock but puts measures in place to detect and prevent it from happening. Therefore, deadlock avoidance is more restrictive as it imposes additional constraints on the system to avoid deadlock situations.
Deadlock avoidance is a dynamic approach to manage system resources by avoiding unsafe states, while deadlock prevention is a proactive method that restricts how resources are accessed by negating conditions for a deadlock. While avoidance might be more restrictive, it can lead to better resource utilization.
Deadlock avoidance and deadlock prevention are two strategies used in concurrent programming and operating systems to handle deadlocks, which occur when a set of processes are blocked because each process is holding a resource and waiting for another resource acquired by some other process.
Deadlock prevention works by negating one of the necessary conditions for a deadlock to occur. This can make the system less efficient because it proactively restricts how resources can be requested and accessed. Common methods for deadlock prevention include ensuring that resources are requested in a pre-determined order, or setting restrictions that make deadlocks impossible, potentially at the cost of resource utilization.
Deadlock avoidance, on the other hand, is a more dynamical approach where the system will consider the resources currently available, the resources currently allocated to each process, and the future requests and releases of each process. This involves using algorithms like the Banker's algorithm, which checks every new resource allocation to ensure that the system will remain in a safe state. While avoidance could be more restrictive as it makes decisions based on future projections and may refuse additional processes to guard against potential deadlocks, it may also ensure better resource utilization without compromising system integrity.