OPPO Kernel Craftsman
May 14, 2021 · Fundamentals
Mastering Linux PM QoS: How to Optimize Power Management with Constraints
This article explains the Linux PM QoS framework, detailing its background, system‑ and device‑level constraints, core data structures, key API functions, and a practical example of limiting CPU‑DMA latency for power‑efficient device operation.
Device DriversLinuxPM QoS
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