~/talk

Tango: Precise Performance Measurement through Direct Comparison

Talkat RustWeek 2025 · 2025-05-13..05-17· [rust]
slides:none on file

Argues that running two builds side‑by‑side removes common‑mode noise and yields reproducible results in noisy cloud environments, implements the idea as an open‑source Rust library Tango that loads two binaries into one process and alternates concurrent runs, demonstrates comparing simple loops over 1M random numbers and reliably measuring about half a percent difference, and shows Paired Benchmarking (Paired Benchmarking) works across Linux, macOS and Windows.

AI-written summary · about

  1. 0:00Introduction
  2. 0:50How to measure performance
  3. 2:15Can we do better
  4. 4:27Performance is like weather
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