openethereum/util/plain_hasher/benches/bench.rs

34 lines
665 B
Rust
Raw Normal View History

2017-08-28 12:40:29 +02:00
#![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
});
});
}