50 lines
1.5 KiB
Rust
50 lines
1.5 KiB
Rust
use criterion::black_box;
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use winnow::combinator::repeat;
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use winnow::prelude::*;
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use winnow::token::take_until;
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fn find_slice(c: &mut criterion::Criterion) {
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let empty = "";
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let start_byte = "\r".repeat(100);
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let start_slice = "\r\n".repeat(100);
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let small = format!("{:>10}\r\n", "").repeat(100);
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let large = format!("{:>10000}\r\n", "").repeat(100);
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let data = [
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("empty", (empty, empty)),
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("start", (&start_byte, &start_slice)),
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("medium", (&small, &small)),
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("large", (&large, &large)),
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];
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let mut group = c.benchmark_group("find_slice");
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for (name, samples) in data {
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group.bench_with_input(
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criterion::BenchmarkId::new("byte", name),
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samples.0,
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|b, sample| {
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b.iter(|| black_box(parser_byte.parse_peek(black_box(sample)).unwrap()));
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},
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);
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group.bench_with_input(
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criterion::BenchmarkId::new("slice", name),
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samples.1,
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|b, sample| {
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b.iter(|| black_box(parser_slice.parse_peek(black_box(sample)).unwrap()));
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},
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);
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}
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group.finish();
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}
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fn parser_byte(input: &mut &str) -> ModalResult<usize> {
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repeat(0.., (take_until(0.., "\r"), "\r")).parse_next(input)
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}
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fn parser_slice(input: &mut &str) -> ModalResult<usize> {
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repeat(0.., (take_until(0.., "\r\n"), "\r\n")).parse_next(input)
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}
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criterion::criterion_group!(benches, find_slice);
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criterion::criterion_main!(benches);
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