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Ch6 行程同步(Process Synchronization)
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27. Spinlock、Semaphore、Interrupt Handler
#OS-06-027
中
Spinlock
Semaphore
Interrupt Handler
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Choose the correct statements from the multiple choices
A
Spinlocks are generally more efficient than binary semaphores because they avoid putting threads to sleep.
B
In an interrupt handler, a spinlock is usually a better synchronization choice than a semaphore because interrupt handlers are not allowed to sleep.
C
Disabling interrupts while holding a spinlock can prevent deadlock between a thread and an interrupt handler.
D
The optimal maximum spin time for a spinlock is independent of the time required to perform a context switch.
E
None of the above.
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