Microkernel and Component-Based OS
Rethinking CPU scheduling for dynamic workloads on Sculpt OS
February 1, 2026
1:05 PM – 1:35 PM Add to calendar
1:05 PM – 1:35 PM Add to calendar
K.4.201
<p>The <em>Genode OS Framework</em> is certainly not a newcomer but still under very active development. While the framework supports various third-party microkernels, its custom-tailored <em>base-hw</em> kernel has proven valuable for putting Genode-specific (kernel) concepts to the test. One of those concepts that we have been test-driving for about a decade was the <em>quota-aware CPU scheduling</em>, which combined CPU-quota trading with priority-based scheduling. However, with Sculpt OS as a major use case of Genode as a desktop OS that focuses on dynamic workloads, it was time to rethink what we expect from a kernel's CPU scheduler.</p>
<p>In this talk, Johannes Schlatow and Stefan Kalkowski share the story and lessons learned from re-designing and re-implementing the kernel scheduler with a particular focus on fairness, tunable latency and ease of configuration.</p>
Additional information
| Live Stream | https://live.fosdem.org/watch/k4201 |
|---|---|
| Type | devroom |
| Language | English |
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