coreos-modules: add CONFIG_SCHED_CLASS_EXT kernel option#3763
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This change introduces the "Extensible Scheduling Class" kernel option (https://cateee.net/lkddb/web-lkddb/SCHED_CLASS_EXT.html), essentially enabling BPF process schedulers. While only few actual scheduler implementations will be able to use this at this point (most also need CONFIG_PAHOLE_HAS_BTF_TAG which is only available when the kernel is built with CLANG), it's a step into the right direction. Signed-off-by: Thilo Fromm <thilofromm@microsoft.com>
tormath1
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tormath1
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Mar 3, 2026
sayanchowdhury
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Mar 3, 2026
github-project-automation
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moved this from ✅ Testing / in Review
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in Flatcar tactical, release planning, and roadmap
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Nice. I didn't know you were working on this. I use one of those SCX schedulers on my home desktop. |
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@chewi I came into this sideways, from a bakery contribution: flatcar/sysext-bakery#203 Fun stuff! Also, good opportunity to modernise Flatcar's default kernel config. |
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coreos-modules: add CONFIG_SCHED_CLASS_EXT kernel option
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This change introduces the "Extensible Scheduling Class" kernel option (https://cateee.net/lkddb/web-lkddb/SCHED_CLASS_EXT.html), essentially enabling BPF process schedulers.
While only few actual scheduler implementations will be able to use this at this point (most also need CONFIG_PAHOLE_HAS_BTF_TAG which is only available when the kernel is built with CLANG), it's a step into the right direction.