Writing a Minimal Scheduler with eBPF, sched_ext, and C (clt25)

Today, eBPF is used for software-defined networking, observability, monitoring tools, and more. Previously, creating these was labor-intensive and had a high barrier to entry. With the new scheduler extensions, we can now add custom schedulers to this list. Sched_ext allows us to write schedulers with custom policies directly in eBPF. In this talk, we’ll develop a basic FIFO (First-In-First-Out) scheduler in C to show you how to get started with writing your own. If you’re interested in diving deeper into eBPF, join us for a quick hands-on intro to custom scheduling! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://chemnitzer.linux-tage.de/2025/de/programm/beitrag/221