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A1.3 Operating systems and control systemsA1.3.3

Approaches to scheduling

Compare different approaches to scheduling

SL + HL≈ 50 minCommand term: ComparePremium

In this lesson

  • Why the operating system schedules processes, and how scheduling is judged
  • How first-come first-served, round robin, multilevel queue and priority scheduling work
  • Comparing the approaches: waiting time, responsiveness, fairness, overhead and starvation

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What's inside

  1. LearnWhy scheduling is needed
  2. LearnFour approaches
  3. LabScheduling simulator
  4. MethodCalculating waiting times
  5. LearnComparing the approaches
  6. CheckQuick check
  7. CheckWhich approach fits?
  8. CheckOrder the steps
  9. ReviewMistakes examiners see
  10. Exam practiceExam-style questions

Ends with 5 exam-style questions worth 15 marks, with a self-marking markscheme.