virtme-ng v1.38 is out! This is a pretty stable update, bringing only bug fixes. Most notably, the infamous "Stale file handle" errors with virtiofsd are finally gone. If you've hit them before, you know how annoying they were, so time to update! github.com/arighi/virtm...

It was a great honor to speak at @kernelrecipes.bsky.social again this year. This conference is always a rich source of inspiration, I'm going back home full of new ideas... and lots of work to do. :) To all kernel folk: don't miss it next year! #kr2025

#kr2025 speakers team. Thanks for making this edition a great success again!

juming on the conclusion after nice aquarium demos. @arighi.bsky.social

@arighi.bsky.social to finalize this first day : Scheduling recipes what the role of the scheduler, sched_ext project and interaction with BPF kernel-recipes.org/en/2025/sche... #kr2025

virtme-ng v1.37 has been released with the initial support for systemd. You can now test apps that depend on systemd inside the virtualized environment. More info: github.com/arighi/virtm...

I'm excited to announce that the sched_ext microconference has been accepted for LPC 2025 in Tokyo - and the Call for Proposals is now open! #linuxplumbers Dec 11–13 | Tokyo, Japan Submit your topic: lpc.events/event/19/abs... Details: lore.kernel.org/all/aH9NIL4C...

I'm quite shocked to see a user-space Rust scheduler (rustland) competing and, in some cases, even outperforming other BPF or in-kernel schedulers. Big shoutout to the @cachyos.org community for constantly running all these benchmarks! It's great motivation to keep improving!

May the 4th be with your kernel tests, virtme-ng v1.34 is out! In this new release: vsock SSH support (more lightweight guest connections), a better support for the s390 architecture and the usual set of bug fixes and improvements. github.com/arighi/virtm...

I've decided to revamp my Linux kernel scheduler in Rust, re-designing and improving the BPF <-> user-space pipeline, and found some interesting benchmark results (from the Phoronix test suite). User-space scheduling feels even more viable now. More info: arighi.blogspot.com/2025/05/reva...

Video of my talk at OSPM Summit 2025 on the current status and future plans for sched_ext: www.youtube.com/watch?v=YxO4...

Me blabbing and demoing the new NUMA-aware features in the scx_bpfland scheduler youtu.be/CootF9OtSRM #linux #scheduling #sched_ext #bpf

virtme-ng v1.33 is available! Now you can run amd64 instances on non-x86 architectures (which means you can use arm64 as your kernel dev / testing platform with vng). Plus, more bug fixes and security improvements. Check out the full changes here: github.com/arighi/virtm...

Ubuntu 25.04 is now sched_ext ready arighi.blogspot.com/2025/02/ubun...

And my other talk at FOSDEM 2025 "Level up your Linux gaming: how sched_ext can save your fps" is also out: ftp.fau.de/fosdem/2025/...

Video of my talk at FOSDEM 2025 "Rust-ifying the Linux kernel scheduler (in user space)": video.fosdem.org/2025/ub2252a... There are some skips here and there in the recording, but they don't alter the content too much.

NVIDIA Engineer Talks Up sched_ext Linux Scheduler Possibilities At FOSDEM - https://www.phoronix.com/news/NVIDIA-Talks-Up-Sched-Ext

Day 2 at @fosdem.bsky.social - today talking about gaming on Linux and scheduling fosdem.org/2025/schedul...

On my way to @fosdem.bsky.social to talk about Rust-ifying the Linux kernel scheduler fosdem.org/2025/schedul...

A short compilation of clips showing how sched_ext / scx_bpfland can mitigate the impact of background workloads and improve the gaming experience on Linux (featuring AAA games) www.youtube.com/watch?v=ZuWy...

Video of my talk 'Designing Custom Linux Schedulers with sched_ext' for the Linux Foundation Mentorship Series. Hope you find it useful! www.youtube.com/watch?v=jsLj...

Sharing some results of my experiments with sched_ext to speed up micro-VM boot time. A modified bpfland provides ~11% faster boot time than the default Linux scheduler. This doesn't make bpfland a better scheduler, but it shows the potential of sched_ext: arighi.blogspot.com/2025/01/acce...

virtme-ng v1.32 is out with exciting new features, such as the remote (vsock) console and ssh support, so now you can attach to a running vng instance from another terminal or use ssh/scp! github.com/arighi/virtm...

If you want to learn how to write custom Linux schedulers using sched_ext, this webinar might be helpful. It's free, so don't hesitate to register if you're interested. www.linuxfoundation.org/webinars/des...