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PID controller

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DeWu Technology
DeWu Technology
Feb 21, 2023 · Backend Development

Design and Implementation of a Traffic Control Platform for E-commerce Search and Recommendation

The article describes a modular traffic‑control platform for e‑commerce search and recommendation that lets operators quickly adjust strategies for emergencies, cold‑start items, and experiments, replacing costly multi‑team development with a unified operation center, service center, data hub, algorithmic PID controller, real‑time metrics, independent recall chain, and cross‑scene AB testing, while outlining future extensions.

AB testingPID controllerplatform architecture
0 likes · 16 min read
Design and Implementation of a Traffic Control Platform for E-commerce Search and Recommendation
OPPO Kernel Craftsman
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
0 likes · 9 min read
Intelligent Power Allocation (IPA) Governor: Architecture, PID Control, and Power Allocation in the Linux Kernel