#![feature(test)] extern crate test; extern crate plain_hasher; use std::hash::Hasher; use std::collections::hash_map::DefaultHasher; use test::{Bencher, black_box}; use plain_hasher::PlainHasher; #[bench] fn write_plain_hasher(b: &mut Bencher) { b.iter(|| { let n: u8 = black_box(100); (0..n).fold(PlainHasher::default(), |mut old, new| { let bb = black_box([new; 32]); old.write(&bb as &[u8]); old }); }); } #[bench] fn write_default_hasher(b: &mut Bencher) { b.iter(|| { let n: u8 = black_box(100); (0..n).fold(DefaultHasher::default(), |mut old, new| { let bb = black_box([new; 32]); old.write(&bb as &[u8]); old }); }); }