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// Copyright (c) Meta Platforms, Inc. and affiliates.
//
// This source code is licensed under the MIT license found in the
// LICENSE file in the root directory of this source tree
use std::{
path::{Component, PathBuf},
time::Duration,
};
use criterion::{
black_box, criterion_group, criterion_main, measurement::Measurement, BatchSize, BenchmarkId,
Criterion, Throughput,
};
use itertools::Itertools;
use rayon::prelude::*;
use libcst_native::{
parse_module, parse_tokens_without_whitespace, tokenize, Codegen, Config, Inflate,
};
#[cfg(not(windows))]
const NEWLINE: &str = "\n";
#[cfg(windows)]
const NEWLINE: &str = "\r\n";
fn load_all_fixtures_vec() -> Vec<String> {
let mut path = PathBuf::from(file!());
path.pop();
path.pop();
path = path
.components()
.skip(1)
.chain(
vec!["tests".as_ref(), "fixtures".as_ref()]
.into_iter()
.map(Component::Normal),
)
.collect();
path.read_dir()
.expect("read_dir")
.into_iter()
.map(|file| {
let path = file.unwrap().path();
std::fs::read_to_string(&path).expect("reading_file")
})
.collect()
}
fn load_all_fixtures() -> String {
load_all_fixtures_vec().join(NEWLINE)
}
pub fn inflate_benchmarks<T: Measurement>(c: &mut Criterion<T>) {
let fixture = load_all_fixtures();
let tokens = tokenize(fixture.as_str()).expect("tokenize failed");
let tokvec = tokens.clone().into();
let mut group = c.benchmark_group("inflate");
group.bench_function("all", |b| {
b.iter_batched(
|| {
let conf = Config::new(fixture.as_str(), &tokens);
let m = parse_tokens_without_whitespace(&tokvec, fixture.as_str(), None)
.expect("parse failed");
(conf, m)
},
|(conf, m)| black_box(m.inflate(&conf)),
BatchSize::SmallInput,
)
});
group.finish();
}
pub fn parser_benchmarks<T: Measurement>(c: &mut Criterion<T>) {
let fixture = load_all_fixtures();
let mut group = c.benchmark_group("parse");
group.measurement_time(Duration::from_secs(15));
group.bench_function("all", |b| {
b.iter_batched(
|| tokenize(fixture.as_str()).expect("tokenize failed").into(),
|tokens| {
black_box(drop(parse_tokens_without_whitespace(
&tokens,
fixture.as_str(),
None,
)))
},
BatchSize::SmallInput,
)
});
group.finish();
}
pub fn codegen_benchmarks<T: Measurement>(c: &mut Criterion<T>) {
let input = load_all_fixtures();
let m = parse_module(input.as_str(), None).expect("parse failed");
let mut group = c.benchmark_group("codegen");
group.bench_function("all", |b| {
b.iter(|| {
let mut state = Default::default();
#[allow(clippy::unit_arg)]
black_box(m.codegen(&mut state));
})
});
group.finish();
}
pub fn tokenize_benchmarks<T: Measurement>(c: &mut Criterion<T>) {
let input = load_all_fixtures();
let mut group = c.benchmark_group("tokenize");
group.measurement_time(Duration::from_secs(15));
group.bench_function("all", |b| b.iter(|| black_box(tokenize(input.as_str()))));
group.finish();
}
pub fn parse_into_cst_benchmarks<T: Measurement>(c: &mut Criterion<T>) {
let fixture = load_all_fixtures();
let mut group = c.benchmark_group("parse_into_cst");
group.measurement_time(Duration::from_secs(15));
group.bench_function("all", |b| {
b.iter(|| black_box(parse_module(&fixture, None)))
});
group.finish();
}
pub fn parse_into_cst_multithreaded_benchmarks<T: Measurement + std::marker::Sync>(
c: &mut Criterion<T>,
) where
<T as Measurement>::Value: Send,
{
let fixtures = load_all_fixtures_vec();
let mut group = c.benchmark_group("parse_into_cst_parallel");
group.measurement_time(Duration::from_secs(15));
group.warm_up_time(Duration::from_secs(5));
for thread_count in 1..10 {
let expanded_fixtures = (0..thread_count)
.flat_map(|_| fixtures.clone())
.collect_vec();
group.throughput(Throughput::Elements(expanded_fixtures.len() as u64));
group.bench_with_input(
BenchmarkId::from_parameter(thread_count),
&thread_count,
|b, thread_count| {
let thread_pool = rayon::ThreadPoolBuilder::new()
.num_threads(*thread_count)
.build()
.unwrap();
thread_pool.install(|| {
b.iter_with_large_drop(|| {
expanded_fixtures
.par_iter()
.map(|contents| black_box(parse_module(&contents, None)))
.collect::<Vec<_>>()
});
});
},
);
}
group.finish();
}
criterion_group!(
name=benches;
config=Criterion::default();
targets=parser_benchmarks, codegen_benchmarks, inflate_benchmarks, tokenize_benchmarks, parse_into_cst_benchmarks, parse_into_cst_multithreaded_benchmarks
);
criterion_main!(benches);
|
