https://github.com/rimubytes/ebpf-scheduler

Minimal Linux scheduler using sched_ext and eBPF directly in C.
https://github.com/rimubytes/ebpf-scheduler

Last synced: about 2 months ago
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Minimal Linux scheduler using sched_ext and eBPF directly in C.

• Host: GitHub
• URL: https://github.com/rimubytes/ebpf-scheduler
• Owner: rimubytes
• Created: 2024-10-28T17:43:33.000Z (2 months ago)
• Default Branch: main
• Last Pushed: 2024-10-28T19:09:03.000Z (2 months ago)
• Last Synced: 2024-10-28T19:22:31.436Z (2 months ago)
• Language: C
• Size: 1.95 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# eBPF-scheduler

This project provides a basic tutorial for building a minimal Linux scheduler using `sched_ext` and eBPF directly in C. The scheduler operates with a First-In-First-Out(FIFO) approach, essentially functioning as a round-robin scheduler by using a global scheduling queue to distribute tasks across CPUs.

## Overview

- The Scheduler:

    - Utilizes a global dispatch queue (DSQ) from which each CPU fetches tasks to run

    - Orders tasks based on a round-robin mechanism, dispatching tasks in a FIFO manner

    - Adjusts each task's time slice according to the number of tasks in the queue, optimizing system responsiveness

    

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### Requirements

To build and run this custom scheduler, you'll need:

    - A 6.12 kernel or a patched 6.11 kernel with `sched_ext` support

    - Recent versions of `clang` for compilation and `bpftool` for attaching the scheduler.