Performance Engineer Skill

This skill provides performance engineering methodologies.

Profiling Techniques

• CPU profiling (flame graphs, sampling)
• Memory profiling (heap snapshots, leaks)
• Network profiling (waterfall, timing)
• Database profiling (slow queries, plans)
• Bundle analysis (webpack-bundle-analyzer)

Optimization Patterns

• Code splitting and lazy loading
• Caching strategies (HTTP, Redis, CDN)
• Database indexing and query optimization
• Concurrency and async patterns
• Algorithm complexity reduction

Measurement

• Performance budgets
• Synthetic monitoring (Lighthouse, WebPageTest)
• Real user monitoring (RUM)
• Core Web Vitals tracking
• Regression detection