A preemptive foreground/background system has three interrupt - driven task cycles, described below (with context switch time
Question:
A preemptive foreground/background system has three interrupt - driven task cycles, described below (with context switch time ignored):
(a) Draw an execution time line for this system.
(b) What is the CPU utilization factor?
(c) Considering the context switch time to be 1 ms, redraw the execution time line for this system.
(d) What is the CPU utilization factor with the context switch time included?
Transcribed Image Text:
Task Id. 5553 Task Cycle 10 ms Time Needed (ms) Priority (1 is highest) T 20 ms T3 40 ms Background 10 4595 1 3 2 n/a
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Part a This pattern will repeat with 1 always taking precedence 2 running when 1 is not ready and 3 ...View the full answer
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Related Book For
Real Time Systems Design And Analysis
ISBN: 9780470768648
4th Edition
Authors: Phillip A. Laplante, Seppo J. Ovaska
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