sched-ext/scx

Health v2 · maintenance only

Adoption not part of the score

2137 stars · 288 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A collection of sched_ext CPU scheduler implementations and tools for Linux, allowing kernel thread schedulers to be written in BPF and loaded dynamically. It enables rapid, safe experimentation with scheduling policies in production environments.

Use cases

• implement custom Linux CPU schedulers in BPF
• experiment with alternative scheduling strategies on a live system
• improve gaming FPS while compiling the kernel
• deploy custom schedulers in production at scale
• load and unload schedulers dynamically without rebooting

When to choose

• you run Linux kernel 6.12+ and want to try or deploy custom CPU scheduling policies
• you need safe, rapid iteration on scheduler designs without kernel patches
• you want to tune scheduling for specific workloads like gaming or latency-sensitive apps

When to avoid

• you run a kernel older than 6.12 without sched_ext support
• you need a scheduler for non-Linux platforms
• you are unwilling to run schedulers with root privileges on your system

Facets

library · maturity active

developer-tools operating-systems performance developer-tools cli bpf sched-ext kernel-scheduling cpu-scheduler ebpf scheduler linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="sched-ext/scx")