# Perf Profiling

> Find where the time actually goes before optimising: sampling versus instrumentation, reading a flame graph, and separating a slow algorithm from a slow I/O wait.

- Skill: `gulmezeren2-byte/perf-profiling` (Agent Skill)
- Install (CLI): `npx skillmds@latest add gulmezeren2-byte/perf-profiling`
- Raw SKILL.md: https://api.skillmd.com/api/skills/gulmezeren2-byte/perf-profiling/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: gulmezeren2-byte (https://skillmd.com/u/gulmezeren2-byte)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/gulmezeren2-byte/perf-profiling

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# perf-profiling

Find where the time actually goes before optimising: sampling versus
instrumentation, reading a flame graph, and separating a slow algorithm from a
slow I/O wait.