5–7 Oct 2026
Europe/Prague timezone

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

5 Oct 2026, 16:00
30m
"Club H" (Prague Congress Centre)

"Club H"

Prague Congress Centre

128
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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