Performance Optimization Skill

Systematic approach to identifying and fixing performance issues.

Core Principle

Measure, don't guess. Optimization without data is guesswork.

The Cardinal Rule

❌ NEVER optimize without measuring first

Why: Premature optimization wastes time on non-issues while missing real problems.

Exception: Obvious O(n²) algorithms when O(n) alternatives exist.

Optimization Process

1. Measure Current State (Baseline)