OPPO Kernel Craftsman
Aug 6, 2021 · Operations
Intelligent Power Allocation (IPA) Governor: Architecture, PID Control, and Power Allocation in the Linux Kernel
The Intelligent Power Allocation (IPA) governor, introduced in Linux kernel 4.2, uses a PID‑based closed‑loop controller and a dynamic power allocator to distribute sustainable power among CPU, GPU and other IP cores, maximizing performance while respecting temperature limits, but requires careful PID tuning and device‑tree configuration.
Linux kernelPID controllerSOC
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