use criterion::{black_box, criterion_group, criterion_main, Criterion}; use edit::rope::Rope; fn concat(buf: &[u8]) -> Rope { let mut r = Rope::new(&[]); for &b in buf.iter() { r = r.concat(&Rope::new(&[b])); } r } fn criterion_benchmark(c: &mut Criterion) { let bytes = vec![0; 10000]; c.bench_function("concat asdfasdf", |b| b.iter(|| concat(black_box(&bytes)))); } criterion_group!(benches, criterion_benchmark); criterion_main!(benches);