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# Objective Benchmark overhead of validation for: - `DynSystemParam`, - `ParamSet`, - combinator systems. Needed for #15606 ## Solution As noted in objective, I've added 3 benchmarks, where each uses an excessive amount of the specific functionality. I benchmark on the level of schedules, rather than individual `validate_param` calls, so we get a better idea how changes to the code impact memory-lookup, etc. related side effects. ## Testing ``` param/combinator_system/8_piped_systems time: [1.7560 µs 1.7865 µs 1.8180 µs] change: [+4.5244% +6.7955% +9.1413%] (p = 0.00 < 0.05) Performance has regressed. Found 2 outliers among 100 measurements (2.00%) 1 (1.00%) high mild 1 (1.00%) high severe param/combinator_system/8_dyn_params_system time: [89.354 ns 89.790 ns 90.300 ns] change: [+0.6751% +1.6825% +2.6842%] (p = 0.00 < 0.05) Change within noise threshold. Found 9 outliers among 100 measurements (9.00%) 6 (6.00%) high mild 3 (3.00%) high severe param/combinator_system/8_variant_param_set_system time: [88.295 ns 89.202 ns 90.208 ns] change: [+0.1320% +1.0060% +1.8482%] (p = 0.02 < 0.05) Change within noise threshold. Found 4 outliers among 100 measurements (4.00%) 4 (4.00%) high mild ``` 2 back-to-back runs of the benchmarks, there is quire a lot of noise, can use feedback on fixing that |
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| Cargo.toml | ||
| README.md | ||
Bevy Benchmarks
This is a crate with a collection of benchmarks for Bevy, separate from the rest of the Bevy crates.
Running the benchmarks
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Setup everything you need for Bevy with the setup guide.
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Move into the
benchesdirectory (where this README is located).bevy $ cd benches -
Run the benchmarks with cargo (This will take a while)
bevy/benches $ cargo benchIf you'd like to only compile the benchmarks (without running them), you can do that like this:
bevy/benches $ cargo bench --no-run
Criterion
Bevy's benchmarks use 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.