Bombardier

Bombardier is an ultra-fast, lightweight HTTP benchmarking and load testing utility written in Go. Utilizing high-performance fasthttp components instead of standard libraries, it can saturate network links and test API limits with minimal CPU footprint.

Key Features of Bombardier

• High-Performance Go Engine: Written in Go with fasthttp, enabling massive request generation on low-end servers.
• Custom Header support: Easily test authorization headers, custom user-agents, and JSON payloads.
• Latencies Distribution: Outputs detailed percentiles (p50, p90, p99, max) for API request processing times.
• Target Execution Control: Set tests to run for a specific number of requests or set a duration limit.

Benefits of Using Bombardier

• Test API Thresholds: Find exactly when your web services begin dropping connections or erroring under stress.
• Low Resource Usage: Run heavy load tests directly from small developer notebooks without memory issues.
• Immediate Results: Clean, concise terminal reports display latency stats and throughput metrics instantly.

To measure system threshold limits, load testers can run Bombardier to stress-test API endpoints with high volumes of concurrent HTTP requests.