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Galvin Edition 9 Exercise 4 Question 9 (Page No. 192)

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It depends on what threading model is used.

Case 1: many to one

No improvement in threading.

Case 2: many to many or one to one

Performance can be improved.
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multiple user level threads can't be scheduled on a multiprocessor system as user level threads are invisible to os.

whereas kernel level threads can be scheduled on multiprocessor system.
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