How Do We Make a Steamdeck Scheduler Work on Large Servers

Learn how to adapt the SCX_LAVD scheduler, originally designed for Steam Deck gaming devices, to work effectively on large-scale server infrastructure in this 16-minute conference talk from the Linux Plumbers Conference. Explore the challenges and strategies involved in deploying sched_ext schedulers across Meta's diverse production environments, focusing on the need for a "default" fleet scheduler that can handle varied workloads and hardware configurations. Discover how to optimize scheduler performance across different topologies and cache hierarchies, understand the heuristics that favor latency-critical threads, and examine tuning strategies that ensure robust performance across a wide range of services and use cases in enterprise environments.