linux-performance-annlysis-skill

Diagnose Linux system performance problems and bottlenecks across CPU, memory, I/O, and network. Use when a user asks to analyze a Linux host that is slow, overloaded, laggy, timing out, dropping packets, swapping, blocked on disk, or showing high load/high latency, and the goal is to determine which subsystem is the bottleneck, whether the bottleneck is in kernel space or application space, and which process is responsible at the application layer.