Measurements of a certain system have shown that the average process runs for a time T before blocking on I/O. A process switch requires a time S, which is effectively wasted (overhead). For round-robin scheduling with quantum Q, giv e a formula for the CPU efficiency for each of the following: (a) Q = ∞ (b) Q > T (c) S < Q < T (d) Q = S (e) Q nearly 0
