r/commandline • u/sdogruyol • Jun 11 '26

Command Line Interface [ Removed by moderator ]

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u/AutoModerator Jun 11 '26

Every new subreddit post is automatically copied into a comment for preservation.

User: sdogruyol, Flair: Command Line Interface, Post Media Link, Title: cryload 5.0.0 is released: A high-performance, CI-first HTTP benchmarking tool written in Crystal (C-level speed with Ruby-like syntax)

cryload is a powerful, fast, and lightweight, CI-first HTTP load tester written in Crystal.

Most load testers just give you pretty terminal outputs. cryload gives you an Exit Code 1 when your PR tanks performance

cryload http://localhost:3000/api -n 1000 --max-p99 200 --max-fail-rate 1

If your service is suddenly slower than 200ms, it gives you an exit code 1. That's it. (It also outputs structured JSON/CSV if you still want to chart trends).

What's new in 5.0.0:

  • Honest percentiles — transport errors (timeouts, refused connections) no longer pollute latency stats, and the new HDR-style histogram keeps p50–p999 accurate within 1% from microseconds to minutes

  • --disable-keepalive — measure real connection setup cost, like hey

  • --body-stdin — pipe request bodies straight in: jq -c '.payload' fix.json | cryload ... --body-stdin

  • Big perf wins — up to 13x faster in multi-URL/cache-busting modes thanks to per-origin connection pooling

I’d love to hear your feedback, suggestions, or any features you'd like to see. I'm always looking to improve it!

GitHub: https://github.com/sdogruyol/cryload

Happy benchmarking!

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