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cargo-criterion

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Cargo extension for running Criterion.rs benchmarks

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<h1 align="center">cargo-criterion</h1>

<div align="center">Criterion-rs Cargo Extension</div>

<div align="center">
    <a href="https://github.com/bheisler/cargo-criterion/blob/master/CHANGELOG.md">Changelog</a>
</div>

cargo-criterion is a Plugin for Cargo which handles much of the heavy lifting for analyzing and 
reporting on [Criterion-rs](https://github.com/bheisler/criterion.rs) benchmarks.

## Table of Contents
- [Table of Contents](#table-of-contents)
  - [Features](#features)
  - [Quickstart](#quickstart)
  - [Goals](#goals)
  - [Contributing](#contributing)
  - [Compatibility Policy](#compatibility-policy)
  - [Maintenance](#maintenance)
  - [License](#license)

### Features

- __Charts__: Uses [gnuplot](http://www.gnuplot.info/) or [plotters](https://crates.io/crates/plotters) to generate detailed graphs of benchmark results
- __Reports__: In addition to the reports generated by Criterion.rs, cargo-criterion generates a historical report showing the performance of a function over time.
- __Configurable__: cargo-criterion's plot generation can be configured using a criterion.toml file.

### Quickstart

This assumes that you already have benchmarks which use Criterion-rs. If not, see [the Criterion-rs Quickstart Guide](https://github.com/bheisler/criterion.rs#quickstart).
Note that Criterion.rs version 0.3.3 or later is recommended. Benchmarks which do not use Criterion.rs, or which use an earlier version, will run correctly but will not
benefit from some of cargo-criterion's features.

First install cargo-criterion:

`cargo install cargo-criterion`

Then you can use it to run your Criterion-rs benchmarks:

`cargo criterion`

Generated reports will appear in `target/criterion/reports`.

### Goals

- cargo-criterion seeks to improve iteration time for Criterion-rs benchmarks. By moving functionality into a separate executable which can be installed once and reused, Criterion-rs can shrink - meaning less code to compile and link into the benchmarks themselves.
- Because cargo-criterion can oversee the whole benchmark process from beginning to end, it's better placed to deliver features that would be difficult to implement in Criterion-rs. These include:
    - Machine-readable output
    - Tracking benchmarked performance over time

### Contributing

First, thank you for contributing.

One great way to contribute to cargo-criterion is to use it for your own benchmarking needs and report your experiences, file and comment on issues, etc.

Code or documentation improvements in the form of pull requests are also welcome. If you're not
sure what to work on, try checking the 
[Beginner label](https://github.com/bheisler/cargo-criterion/issues?q=is%3Aissue+is%3Aopen+label%3ABeginner).

If your issues or pull requests have no response after a few days, feel free to ping me (@bheisler).

For more details, see the [CONTRIBUTING.md file](https://github.com/bheisler/cargo-criterion/blob/master/CONTRIBUTING.md).

### Compatibility Policy

cargo-criterion supports the last three stable minor releases of Rust. At time of
writing, this means Rust 1.85 or later. Older versions may work, but are not tested or guaranteed.

Currently, the oldest version of Rust believed to work is 1.80. Future versions of cargo-criterion may
break support for such old versions, and this will not be considered a breaking change. If you
require cargo-criterion to work on old versions of Rust, you will need to stick to a
specific patch version of cargo-criterion.

### Maintenance

cargo-criterion was originally developed and is currently maintained by Brook Heisler (@bheisler).

### License

cargo-criterion is dual licensed under the Apache 2.0 license and the MIT license.

cargo-criterion

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