Kernel, Operating System

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1. What must a kernel provide for an effective user-level thread implementation?

2. With respect to the quantum q in a scheduling algorithm, explain and discuss the impact of the following on the operating system:

a) q is fixed and identical for all users.

b) q is fixed and unique to each user.

c) q is variable and identical for all users.

d) q is variable and unique to a each user.

3. Arrange the above schemes in question 2 from lowest to highest run-time overhead. Explain your answer.

4. Arrange the above schemes in question 2 from least to most responsive to variations in individual processes and system load. Explain you answer.

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