Multiple choice

In a uniprocessor system a new process arrives at an average of four processes per minute and each such process requires an average of 5 seconds of service time. Calculate CPU utilisation?

  1. 33%

  2. 40%

  3. 80%

  4. 50%

  5. 60%

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

CPU utilisation = service time / staying time  = 5/15 = 0.33 = 33%.