edit/benches/lib.rs

use criterion::{BenchmarkId, Criterion, Throughput, criterion_group, criterion_main};
use edit::helpers::*;
use edit::memchr;
use edit::ucd;

fn bench(c: &mut Criterion) {
    let reference = concat!(
        "In the quiet twilight, dreams unfold, soft whispers of a story untold.\n",
        "月明かりが静かに照らし出し、夢を見る心の奥で詩が静かに囁かれる\n",
        "Stars collide in the early light of hope, echoing the silent call of the night.\n",
        "夜の静寂、希望と孤独が混ざり合うその中で詩が永遠に続く\n",
    );
    let buffer = reference.repeat(10);
    let bytes = buffer.as_bytes();

    let mut group = c.benchmark_group("ucd::MeasurementConfig::goto_logical");
    group.throughput(Throughput::Bytes(bytes.len() as u64));
    group.bench_function("basic", |b| {
        b.iter(|| ucd::MeasurementConfig::new(&bytes).goto_logical(Point::MAX))
    });
    group.bench_function("word_wrap", |b| {
        b.iter(|| {
            ucd::MeasurementConfig::new(&bytes)
                .with_word_wrap_column(50)
                .goto_logical(Point::MAX)
        })
    });
    group.finish();

    let mut group = c.benchmark_group("memchr::memchr2");
    let mut buffer = [0u8; 8192];
    for &size in &[0usize, 8, 64, 4096] {
        group.throughput(Throughput::Bytes(size as u64 + 1));
        group.bench_with_input(BenchmarkId::from_parameter(size), &size, |b, &size| {
            buffer.fill(b'a');
            buffer[size] = b'\n';
            b.iter(|| memchr::memchr2(b'\n', b'\r', &buffer[..size], 0));
        });
    }
    group.finish();
}

criterion_group!(benches, bench);
criterion_main!(benches);