million-hello-challenge

Benchmarking 1 million HTTP “Hello World” requests across Rust, Go, Kotlin, Node.js, and Python servers in GitHub Actions.

Consider this an upper bound on the performance of each language/framework, adding more code will make things slower.

Latest results:

• Formatted
• Raw

API Servers in this repo:

• rust-api using axum
• go-api using builtin net/http
• kotlin-api using http4k with Helidon server using virtual threads, Java 25.
• node-api using builtin node:http server.
• python-api using tornado server, using pre-forking to use all available CPUs.

Test Setup:

• Use oha test tool to make 1 million HTTP requests
• Using HTTP 1.1 with varying number of connections.
• At oha client measure:
  • Success rate
  • Test duration
  • Requsts per Second (RPS)
  • Response time (P50, P99, P99.9 milliseconds)
• At API server measure:
  • Total resident (RSS) memory usage
  • Total CPU time
  • Total threads created
  • Total processes created