Spin Lock vs Mutex

Some of the important difference between Spin Lock and Mutex are:

Spinlock	Mutex
Spinlock is a busy waiting lock, that is process or thread is not put to sleep that is Process Descriptor(PD) or Thread Descriptor(TD) is not added to wait queue.	Mutex is a sleeping lock that is process or thread is put to sleep that is Process Descriptor(PD) or Thread Descriptor(TD) is added to wait queue.
There is no context switching involved	Context switching is involved.
This is useful for small critical section, else wastes CPU cycle.	This is useful for long critical sections otherwise a frequent context switching adds overhead.
Preemption is disabled	Prremption is enabled.

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