Example - IRIS1- Identcal Linear Reward Function

For More information about this post, Refer the Book, Real Time Systems by Krishna and Shin, McGraw Hill.

Conclusion:
The mandatory portion of the task T4 is not meeting its deadline and it is just adjusted from the Task T2 (the mandatory portion of the task T2 is meeting its deadline, but the reward is less)

This kind of algorithm says, atleast the mandatory portion of the tasks should meet their deadlines.

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