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Questions about techniques for enforcing an agreed order of events between several concurrently executing threads. Specific synchronization mechanisms include mutexes (locks), condition variables, semaphores and monitors.

4 votes

Why are most mutex implementations unfair?

'Priority inversion' is one reason that fairness can be undesirable. A low priority process hits the locked mutex and sleeps. Then a higher priority process hits it, and also sleeps. When the mutex un …
Jim Sawyer's user avatar