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bencheeorg/benchee

Benchee is a benchmarking library for Elixir that measures execution time, memory usage, and function call overhead. It provides a high-level API for running and reporting benchmarks, supporting parallel execution, pre-checks, and statistical outlier removal. The system features modular formatters for console output and file saving, along with comprehensive test coverage for its core metrics and utilities.

70.1

Strong · 1 August 2026

7.2k

lines of production code

Elixir

primary language

1

bus factor · 45 authors in all

3

measurements over time

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How it got here

2016 · API and internal refactoring

This period focused on a major internal refactoring of the Benchee library, introducing new data structures and modular components for benchmarking, conversion, and formatting. The work established a more robust and idiomatic high-level API for running and reporting benchmarks, alongside comprehensive test coverage for the new modules and utilities.

15 changes

2017–2026 · Benchmarking architecture and metrics expansion

This period focused on refactoring Benchee's core benchmarking engine to support new performance metrics, specifically memory usage, reduction counts, and execution time. The architecture was modularized to separate concerns between benchmarking, profiling, and progress updates, with comprehensive test coverage added for all new components.

11 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 1 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 55a5e6049e — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
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