5–7 Oct 2026
Europe/Prague timezone

EPP-boost: Per-core util-based performance boosting in AMD p-state driver

Not scheduled
20m
Gaming on Linux MC Gaming on Linux MC

Speaker

David Vernet (Meta)

Description

I've observed that on the Steam Deck, changes to the AMD p-state driver can have a significant impact on tail latencies and stale frame numbers. I've submitted an RFC upstream which proposes a per-CPU EPP boost heuristic: https://lore.kernel.org/all/20260728073150.54964-1-void@manifault.com/.

We should discuss gaps in the current cpufreq / AMD p-state driver, and how to best address frequency scaling for gaming workloads in general.

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