forked from extern/nushell
771270d526
This PR sets up [Criterion](https://github.com/bheisler/criterion.rs) for benchmarking in the main `nu` crate, and adds some simple parser benchmarks. To run the benchmarks, just do `cargo bench` or `cargo bench -- <regex matching benchmark names>` in the repo root: ```bash 〉cargo bench -- parse ... Running benches/parser_benchmark.rs (target/release/deps/parser_benchmark-75d224bac82d5b0b) parse_default_env_file time: [221.17 µs 222.34 µs 223.61 µs] Found 8 outliers among 100 measurements (8.00%) 5 (5.00%) high mild 3 (3.00%) high severe parse_default_config_file time: [1.4935 ms 1.4993 ms 1.5059 ms] Found 11 outliers among 100 measurements (11.00%) 7 (7.00%) high mild 4 (4.00%) high severe ``` Existing benchmarks from `nu-plugin` have been moved into the main `nu` crate to keep all our benchmarks in one place.
35 lines
1.2 KiB
Rust
35 lines
1.2 KiB
Rust
use criterion::{criterion_group, criterion_main, BatchSize, Criterion};
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use nu_parser::parse;
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use nu_protocol::{Span, Value};
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use nu_utils::{get_default_config, get_default_env};
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fn criterion_benchmark(c: &mut Criterion) {
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let mut engine_state = nu_command::create_default_context();
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// parsing config.nu breaks without PWD set
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engine_state.add_env_var(
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"PWD".into(),
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Value::string("/some/dir".to_string(), Span::test_data()),
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);
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let default_env = get_default_env().as_bytes();
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c.bench_function("parse_default_env_file", |b| {
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b.iter_batched(
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|| nu_protocol::engine::StateWorkingSet::new(&engine_state),
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|mut working_set| parse(&mut working_set, None, default_env, false, &[]),
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BatchSize::SmallInput,
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)
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});
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let default_config = get_default_config().as_bytes();
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c.bench_function("parse_default_config_file", |b| {
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b.iter_batched(
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|| nu_protocol::engine::StateWorkingSet::new(&engine_state),
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|mut working_set| parse(&mut working_set, None, default_config, false, &[]),
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BatchSize::SmallInput,
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)
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});
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}
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criterion_group!(benches, criterion_benchmark);
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criterion_main!(benches);
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