bevy/benches/README.md

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# Bevy Benchmarks
This is a crate with a collection of benchmarks for Bevy, separate from the rest of the Bevy crates.
## Running the benchmarks
1. Setup everything you need for Bevy with the [setup guide](https://bevyengine.org/learn/book/getting-started/setup/).
2. Move into the `benches` directory (where this README is located).
```sh
bevy $ cd benches
```
3. Run the benchmarks with cargo (This will take a while)
```sh
bevy/benches $ cargo bench
```
If you'd like to only compile the benchmarks (without running them), you can do that like this:
```sh
bevy/benches $ cargo bench --no-run
```
## Criterion
Bevy's benchmarks use [Criterion](https://crates.io/crates/criterion). If you want to learn more about using Criterion for comparing performance against a baseline or generating detailed reports, you can read the [Criterion.rs documentation](https://bheisler.github.io/criterion.rs/book/criterion_rs.html).