The Current Status and Future Direction of the LAVD Scheduler

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" summary

LAVD is a sched_ext scheduler that targets gaming latency and energy by picking CPU sets that meet a measured computing demand with minimum power. It reads kernel energy models via debugfs energy model (netlink updates landed), builds a mapping in a userspace Rust reader, and runs an energy-model-aware (EMA) algorithm to choose big/medium/little combinations. Early tests on a Snapdragon board render two games with similar or higher FPS and noticeably lower energy compared to a big-core–biased scheduler. Remaining work: model accuracy, medium-core policy, and Windows-sync preemption fixes.

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" chapters (12)

1. 0:00Introduction to LAVD scheduler
2. 1:02What is the RAVD scheduler
3. 2:48Development status of LAVD
4. 3:08Energy-aware scheduling in hybrid CPUs
5. 6:58Energy model implementation
6. 8:20Energy model updates and optimization
7. 9:43Energy model results on Snapdragon
8. 10:47Task assignment in LAVD
9. 12:10Early results and performance
10. 13:13Future directions and discussions
11. 14:17Plans for next year
12. 15:23Q&A session