sort_by_words_benchmark.rs

use criterion::{criterion_group, criterion_main, Criterion};

fn sort_by_words1(name: &str) -> String {
    let mut split_words: Vec<&str> = name.split('_').collect();
    // We are sorting primitive &strs and can use unstable sort here.
    split_words.sort_unstable();
    split_words.join("_")
}

fn sort_by_words2(name: &str) -> Vec<&str> {
    let mut split_words: Vec<&str> = name.split('_').collect();
    // We are sorting primitive &strs and can use unstable sort here.
    split_words.sort_unstable();
    split_words
}

fn bench_sorts(c: &mut Criterion) {
    let mut group = c.benchmark_group("multiply add");
    let name = "some_fancy_name";
    group.bench_function("original", |b| b.iter(|| sort_by_words1(name)));
    group.bench_function("proposed", |b| b.iter(|| sort_by_words2(name)));
    group.finish();
}

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