Linux Kernel Journey

Nov 14, 2025 · Fundamentals

What Optimizations Did Zang Chunxin Introduce to the Linux EEVDF Scheduler?

The article traces the evolution of Linux CPU scheduling from CFS to the EEVDF algorithm, explains EEVDF’s deadline‑driven allocation with concrete task examples, and details Zang Chunxin’s patch that enables shorter slices and wake‑up preemption to reduce latency.