Performance Testing

Overview

Performance testing validates that applications meet speed, scalability, and stability requirements under various load conditions. This skill provides comprehensive expertise in load testing tools (k6, locust, JMeter, Gatling), API and database performance testing, benchmarking strategies, profiling techniques, and systematic approaches to identifying and resolving performance bottlenecks.

When to Use This Skill

Use this skill when you need to:

• Implement load tests, stress tests, spike tests, or soak tests
• Measure API endpoint performance under concurrent users
• Optimize database queries and identify slow queries
• Analyze latency percentiles (p50, p95, p99) and throughput (RPS)
• Set up performance monitoring and alerting
• Identify system saturation points and bottlenecks
• Establish performance budgets and SLOs
• Conduct capacity planning and scalability analysis