Please and thank you. An external event is sensed using polling with period P. It takes 100 cycles to process the event. Processor frequency is 48 MHz. Before starting a new period, the previous polling task should have finished. The relative deadline for processing an event is 10μs. (a) Determine the range of feasible polling periods?
Please and thank you. An external event is sensed using polling with period P. It takes 100 cycles to process the event. Processor frequency is 48 MHz. Before starting a new period, the previous polling task should have finished. The relative deadline for processing an event is 10μs. (a) Determine the range of feasible polling periods?
Computer Networking: A Top-Down Approach (7th Edition)
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Please and thank you.
An external event is sensed using polling with period P. It takes 100 cycles to process
the event. Processor frequency is 48 MHz. Before starting a new period, the previous
polling task should have finished. The relative deadline for processing an event is 10μs.
(a) Determine the range of feasible polling periods?
the event. Processor frequency is 48 MHz. Before starting a new period, the previous
polling task should have finished. The relative deadline for processing an event is 10μs.
(a) Determine the range of feasible polling periods?
(b) Suppose now that an unrelated interrupt may occur and the interrupt has higher
priority than the code for processing the polling event. Including all overhead, it takes 40
cycles to process the interrupt. The minimum time between two subsequent interrupts is
T. Suppose that T is larger than 140 cycles. Determine the range of feasible polling
periods.
priority than the code for processing the polling event. Including all overhead, it takes 40
cycles to process the interrupt. The minimum time between two subsequent interrupts is
T. Suppose that T is larger than 140 cycles. Determine the range of feasible polling
periods.
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