Hi, I'm Ruikang Tao.

I write about cloud infrastructure, networking, distributed systems, and the engineering lessons I learn along the way.

Recent posts

2026-08-11

Understanding QKV in Transformers: Why Attention Separates Matching from Content

2026-03-31

When Two Health Checks See Different GPU States: An Investigation, Fix, and Reflection on an Architecture Problem

2026-03-23

Understanding DCGM: The GPU Management Stack from NVML to HostEngine

2026-03-17

Why NCCL Tests Matter

2026-02-08

Understanding the Core Mechanisms of Prometheus in One Article

2026-01-05

2025-12-15

A Practical Guide to Your Job Search

2025-10-19

Demystifying Machine Learning: Classification Frameworks, Amortization Thinking, and Business Orientation

2025-04-21

Understanding the Link Layer in Simple Terms: Grasping the Network's First Step Through "Media Access"

2025-03-18

Transparency in Distributed Systems

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