OPPO Kernel Craftsman
Jul 9, 2021 · Operations
Understanding CPU Frequency Scaling (cpufreq) in Linux: Architecture, Governors, and Interactive/Schedutil
The Linux cpufreq framework, organized into generic, driver, and governor layers, manages dynamic frequency and voltage scaling for big‑LITTLE CPUs by exposing sysfs controls, using policies like Interactive (periodic sampling) and Schedutil (event‑driven) to balance performance and battery life on modern smartphones.
CPU frequency scalingCPU governorsInteractive governor
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