Meta Is Using the Linux Scheduler Designed for Valve's Steam Deck on Its Servers

4 months ago

Meta is using the Linux scheduler SCX-LAVD, originally designed for Valve's Steam Deck, on its servers.
SCX-LAVD, developed by Igalia for Valve, performs similarly or better than EEVDF for gaming handhelds.
The scheduler is also used by CachyOS Handheld Edition, Bazzite, and other Linux gaming initiatives.
Meta engineers presented findings at LPC 2025, showing SCX-LAVD works well on large servers too.
Meta refers to SCX-LAVD as 'Meta's New Default Scheduler' for its server fleet.
The scheduler adapts well to varying CPU and memory configurations and balances load effectively.
Meta's research indicates SCX-LAVD is suitable for general use-cases without needing specialized schedulers.

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