# sharkdp/hyperfine

A command-line benchmarking tool

Repository: https://github.com/sharkdp/hyperfine
Canonical: https://ross.abutalabs.com/products/hyperfine
Language: Rust
License: Apache-2.0
License Family: permissive
Topics: command-line, tool, benchmark, rust, cli, terminal
Last push: 2026-04-30T08:23:25+00:00

## Health v2 (maintenance only)
Score: 65/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 80, release rhythm 25, longevity 100
- inputs: {"age_days": 3154, "days_push": 125, "days_rel": 288, "gap_med": 371, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 28741, forks 507 (observed 2026-08-28T04:11:52.778826+00:00)

## What it is
Hyperfine is a cross-platform command-line benchmarking tool written in Rust. It runs shell commands multiple times, performs statistical analysis with outlier detection, and supports warmup runs, cache-clearing preparation commands, and parameterized benchmark sweeps.

## Use cases
- benchmark shell commands from the terminal
- compare the runtime of two or more CLI programs
- measure command performance with warmup and cold-cache runs
- run parameterized benchmarks varying a value like thread count
- export benchmark results as CSV, JSON, or Markdown
- detect statistical outliers in timing runs

## When to choose
- you need statistically sound CLI timing measurements with outlier detection
- you want to compare alternative command-line tools side by side
- you need parameter sweeps of a command across a range of values
- you want a fast, cross-platform benchmarking tool with exportable results

## When to avoid
- you need to benchmark HTTP APIs or network services rather than shell commands
- you need GUI application or in-process function benchmarking
- you require profiling with flamegraphs or memory analysis rather than wall-clock timing

## Facets
- artifact type: cli-tool
- maturity: stable
- function: benchmarking, cli
- domain: developer-tools, performance
- platform: cli, windows, rust, cross-platform
- tags: benchmarking-tool, shell-commands, statistical-analysis, outlier-detection, parameterized-benchmarks, rust, command-line, linux, macos

## Member repositories
- sharkdp/hyperfine (main) score 65

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:52.778826+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 2026-08-29T16:54:20.119514+00:00, confidence not recorded.
  - readme: https://github.com/sharkdp/hyperfine (fetched 2026-08-28T04:11:52.778826+00:00, sha c3cd880547a7)
  - registry_crates: https://crates.io/api/v1/crates/hyperfine (fetched 2026-08-29T07:50:35.408989+00:00, sha bf0d7beba83c)
- Data as of 2026-08-30T08:39:29.467469+00:00.