# bheisler/criterion.rs

Statistics-driven benchmarking library for Rust

Repository: https://github.com/bheisler/criterion.rs
Canonical: https://ross.abutalabs.com/products/criterionrs
Language: Rust
License: Apache-2.0
License Family: permissive
Topics: rust, benchmark, statistics, gnuplot, criterion
Last push: 2026-04-23T01:57:38+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 78, release rhythm 35, longevity 100
- inputs: {"age_days": 4482, "days_push": 133, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5520, forks 360 (observed 2026-08-28T04:09:21.892001+00:00)

## What it is
Criterion.rs is a statistics-driven microbenchmarking library for Rust that measures and analyzes code performance with rigorous statistical methods. It generates detailed reports and plots (via gnuplot) and detects performance regressions between runs.

## Use cases
- benchmark rust functions with statistical rigor
- detect performance regressions in rust code
- generate benchmark reports and plots
- compare performance of code changes
- write microbenchmarks as an alternative to the built-in rust bench harness

## When to choose
- you need statistically sound benchmarking with regression detection in Rust
- you want detailed HTML reports and charts for benchmark results
- you need a stable, widely adopted Rust benchmarking harness

## When to avoid
- you want the actively developed fork - development moved to the criterion-rs organization
- you need end-to-end or load testing rather than microbenchmarks
- you are benchmarking non-Rust code

## Facets
- artifact type: library
- maturity: maintenance
- function: benchmarking
- domain: performance, developer-tools, testing
- platform: rust, cli
- tags: microbenchmarking, statistics, gnuplot, harness

## Member repositories
- bheisler/criterion.rs (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:21.892001+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:55:47.475395+00:00, confidence not recorded.
  - readme: https://github.com/bheisler/criterion.rs (fetched 2026-08-28T04:09:21.892001+00:00, sha 273c1b55c2ed)
- Data as of 2026-08-30T08:39:29.467469+00:00.