Question: In our lectures on CPU Scheduling and Synchronizations, we discussed in a modern OS utilizing preemptive scheduling with concurrency, coding or using busy - wait

In our lectures on CPU Scheduling and Synchronizations, we discussed in a modern OS utilizing preemptive scheduling with concurrency, coding or using busy-wait is not good for system performance. Please explain in 1-2 paragraphs (in your OWN words), why system performance is reduced if we use busy-wait in our code.

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