flame-graph-analyzer

Overview

Canonical flame-graph reference: brendan-gregg-flame. The widest leaf (bottom of the stack) is the hot path.

Each runtime produces flame graphs from its own profiler - py-spy (Python), async-profiler (JVM), Go's built-in pprof, clinic.js flame (Node.js), and perf / eBPF (native C/C++/Rust). This skill is language-agnostic: it consumes the profiler output (SVG, JSON, or folded-stacks .txt) and surfaces a hypothesis the engineer can act on. Per-runtime capture commands live in references/capturing-and-interpreting-flame-graphs.md.

When to use