Question

Why (and how) mutex can deal with priority inversion and semaphores not?

I read in lots of places that the difference (one of them) between mutex and semaphore is priority inversion, can anyone explain please?

Était-ce utile?

La solution

From Wikipedia:

Since the mutex knows its current owner, it is possible to promote the priority of the owner whenever a higher-priority task starts waiting on the mutex.

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