Peterson's solution for critical section problem pdf

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Peterson's Solution for a 2-process case int turn; boolean flag[2]; critical section flag[i] = FALSE; The root cause of the problem is that we are. The Critical-Section Problem. ? Peterson's Solution. ? Synchronization Hardware. ? Mutex Locks. ? Semaphores. ? Classic Problems of Synchronization. Critical section is the most basic solution Cannot allow multiple processes in critical section at the same algorithms like Peterson. Solutions to the Critical Section Problem · Peterson's Algorithm: based on busy waiting · Semaphores: general facility provided by operating system (e.g., OS/2).Any issues of Peterson's solution? ? Busy waiting. ? Each thread should have different code. ? Can it support more than two threads? ? Chapter 5: Process Synchronization. ? Background. ? The Critical-Section Problem. ? Peterson's Solution. ? Synchronization Hardware. ? Mutex Locks. •The Critical-Section Problem. •Peterson's Solution. •Synchronization Hardware. •Semaphores. •Classic Problems of Synchronization. •Monitors. The Critical-Section Problem. ? Peterson's Solution. ? Hardware Support for Synchronization. ? Mutex Locks. ? Semaphores. ? Monitors. ? Liveness. We can use binary semaphores to deal with the critical-section problem for multiple processes. The n processes share a semaphore, mutex, initialized to 1. Each solving the critical-section problem and addresses the requirements of mutual exclusion, progress, and bounded waiting. Prepared By: Kaushik Vaghani. Page 7. •