arighi's blog

I've recently started a new hobby project: re-implementing the Linux fair/EEVDF scheduler 100% in BPF using sched_ext. The main goal is ...

Recap Some time ago, I built a kernel scheduler in Rust, called scx_rustland . It runs entirely in user space, powered by sched_ext , a tec...

Ubuntu 25.04 Plucky Puffin now ships a linux-generic kernel based on 6.12 , which means that sched_ext is supported out of the box! 🎉...

Overview Booting short-lived virtual machines (VMs) can be a highly CPU-intensive workload. In scenarios like serverless computing, where b...

Overview Many kernel hackers and OS enthusiasts have long dreamed of designing and running a custom Linux scheduler. However, this has trad...