Principal System Engineer @ NVIDIA
Joined November 2008
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Andrea Righi retweeted
🦀 Rust goes deep into the Linux kernel!
A big thank you to Andrea Righi for an advanced keynote on reimplementing the Linux scheduler in Rust, exploring BPF, EEVDF scheduling, and performance compared to the C implementation. 🚀 #RustLab2026
Andrea Righi retweeted
The sched_ext Microconference was very active this year at Linux Plumbers in Prague. It featured
six talks, preceded by an opening discussion on the future direction of sched_ext.
Please checkout our blog post for more information.
lpc.events/blog/current/inde…
Andrea Righi retweeted
Boro: NVIDIA's Open-Source Effort For AI-Assisted Linux Kernel Development
Apache 2.0 licensed, written in Rust, local AI assistance for kernel devs.
phoronix.com/news/NVIDIA-Bor…
Andrea Righi retweeted
NVIDIA Olympus SMT Optimizations For @NVIDIAAIInfra Vera CPU Showing 3~6% Performance Gains
SMT optimization Linux patches continue nearing the mainline kernel.
phoronix.com/news/NVIDIA-Oly…
I've been working on adding proxy execution support to sched_ext. In this demo of a synthetic mutex-heavy workload, enabling proxy execution with scx_cosmos cuts average latency from ~7.4 ms to ~3.5 ms and reduces p99 latency from ~13ms to ~9.5ms
youtube.com/watch?v=gkori8bl…
Official CFP for the sched_ext Microconference at LPC 2026: lore.kernel.org/all/ah0poFjR…
Please, submit your proposals by July 24th 2026 to give us time to schedule talks in advance of the conference.
virtme-ng v1.41 is out, with better support across distro and architectures (including minimal rootfs environments), improved integration with AI agents / non-interactive sessions, enhanced debugging, networking, PCI device passthrough, and much more.
github.com/arighi/virtme-ng/…
Andrea Righi retweeted
Linux Patches Posted To Fix ~2x Performance Drop For CPU Workloads On NVIDIA Vera Rubin
Whoops... Thankfully this Linux scheduler SMT improvement being sorted out prior to Vera Rubin platform ramping up.
phoronix.com/news/NVIDIA-Ver…
Andrea Righi retweeted
Submissions for the Refereed Track, Kernel Summit, BoF and Microconferences are now open. Please read our latest blog post for tips to contribute to LPC.
lpc.events/blog/current/inde…
Andrea Righi retweeted
Linux's sched_ext Will Prioritize Idle SMT Siblings For Better Performance
phoronix.com/news/Linux-7.1-…
Andrea Righi retweeted
CFP for LPC 2026 is open!
Important dates:
Thursday, April 23, 2026: Deadline to submit proposals to host a microconference
Sunday, June 28, 2026: Deadline to submit LPC Refereed Track Presentations Proposals and Kernel Summit Presentations Proposals.
lpc.events/event/20/abstract…
Really proud to see the "sched_ext deadline server" landing upstream in Linux v7.0.
This is a big milestone for sched_ext, as it allows custom CPU schedulers to coexist with real-time tasks, making them viable for embedded & other real-time scenarios.
lore.kernel.org/all/aYmQyDHF…
Andrea Righi retweeted
Linux's sched_ext Has Plans For GPU Awareness, Energy-Aware Abstractions
phoronix.com/news/sched-ext-…
Video of my opening talk at the sched_ext microconference (LPC 2025), discussing open issues and future directions for sched_ext: deadline server, hierarchical schedulers, and built-in scheduler improvements.
youtube.com/watch?v=lQ26nF5C…
If you are attending LPC in Tokyo, you are welcome to join the sched_ext microconference tomorrow (Fri 12/12) at 3pm. We will cover recent developments, current status and upcoming features in the sched_ext framework.
Where: Hall B2
Schedule: lpc.events/event/19/sessions…
Andrea Righi retweeted
That was cutting-edge! ⚙️
Thanks to @arighi for exploring how AI-driven logic and Rust can make kernel scheduling more intelligent.
#RustLab2025
I put a neural network in the Linux kernel scheduler, just for fun, and it actually works... at least for the workload it was trained on :)
youtube.com/watch?v=ywW83YK9…
Andrea Righi retweeted
Can AI help the Linux kernel make smarter scheduling decisions?
@arighi explores how to combine Rust and machine learning to experiment with AI-powered CPU schedulers.
🧠 Exploring AI-Powered Kernel Schedulers with Rust
#rustlang #rustlab2025
