A seemingly simple concurrent Map access, performance crashes under high concurrency. pprof shows 90% of time spent in sync.Mutex.Lock. This post documents the investigation and performance comparison of different lock strategies.
A key user experience metric for NAS products: how long from pressing power to accessing shared folders? Our target was 30 seconds, but the original took 75 seconds. This post documents the complete journey from 75s to 30s.
For a NAS product, I needed to develop a 24/7 system daemon for disk health monitoring and scheduled task management. This post covers the key technical aspects: signal handling, graceful shutdown, and config hot-reload.
A NAS’s most important job is protecting user data. Disk failures often have warning signs, and SMART technology can detect problems early. This post documents how to build a disk health monitoring agent.
LeetCode’s atoi is a classic interview problem, but production-grade implementations are far more complex. This post starts from the interview version and gradually analyzes Go and Rust standard library implementations to understand “production-grade” code design.
Go 1.18 finally brought generics. In our NAS project, we refactored several common modules using generics. This post documents real-world benefits, pitfalls, and best practices we learned.