Pluggable Scheduling in the Linux Kernel with sched_ext - Kernel Recipes 2023

Explore the concept of pluggable scheduling in the Linux kernel through this 47-minute conference talk from Kernel Recipes 2023. Dive into the challenges of modern CPU scheduling, including heterogeneous architectures, complex cache hierarchies, and evolving use cases like mobile and VR applications. Learn about sched_ext, a framework that allows developers to implement scheduling policies using BPF programs, enabling experimentation with algorithms that address specific use cases. Discover the potential improvements over the Completely Fair Scheduler (CFS) and understand the project's current status. Gain insights into the practical and technical aspects of modular scheduling, including flowcharts, fragmentation, and bug reporting. Explore the intersection of BPF and scheduling, and how it can lead to more flexible and efficient kernel scheduling solutions.

Introduction
CPU scheduler
CFS
BPF
schedext
What is skedext not
Production ready scheduler
Project status
Flowchart
Fragmenting schedulers
modularity
practical
technical
bug reports
BPF lock