How much faster should new CPU be to have

Reference no: EM132829433

Question - Assume that 20% of the time is spent on CPU task; the rest is spent on I/O. Assume that we improve CPU and keep I/O speed unchanged.

a) How much faster should new CPU be to have the overall speedup of 2.8?

b) Is that possible to have an overall speedup of 4? Why?

Reference no: EM132829433

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