Rhebok, High Performance Rack Handler
summary
Claims 1.5–2x throughput versus Unicorn on realistic workloads, backed by wrk benchmarks (hello world ~250k → ~400k req/s) and a ~2000-point improvement in the Dribocon tuning contest. Implementation uses a prefork_engine model with fixed worker processes, C extensions for timeouts and header parsing via picohttpparser, direct read into parser to avoid Ruby string copies, and TCP optimizations using writev/syscalls and TCP_NODELAY. Hot deploy and graceful worker shutdowns are supported.
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chapters (5)
- 0:00Introduction and background
- 11:01Benchmark results comparison
- 23:44Prefork architecture explained
- 30:57TCP and response optimizations
- 35:44Conclusion and call to action
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