Round Robin Scheduling: The 80% Time Quantum Heuristic

2026-10-30来源 dev.to LinuxEnglish

Round Robin CPU Scheduling

How do modern kernels balance high throughput with instant interactive UI responsiveness?

⚡ Context Switching Overhead

Every preemptive switch requires:

  1. Saving CPU registers into the PCB.
  2. Reloading kernel register state.
  3. Invaliding TLB caches on process boundary switch.

If the slice is too narrow, overhead dominates execution time.

Explore the CPU Gantt chart simulator on Binary Dose.

原文：https://www.a8q9.cn/en/article/round-robin-scheduling-the-80-time-quantum-heuristic-1c7a8b.html

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