42 lines
1.3 KiB
Rust
42 lines
1.3 KiB
Rust
//! Compare the speed of rust hash implementations
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use std::hash::{BuildHasher, Hasher};
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use criterion::{black_box, criterion_group, criterion_main, Criterion};
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use libafl_bolts::rands::{Rand, StdRand};
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//use xxhash_rust::const_xxh3;
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use xxhash_rust::xxh3;
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fn criterion_benchmark(c: &mut Criterion) {
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let mut rand = StdRand::with_seed(0);
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let mut bench_vec: Vec<u8> = vec![];
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for _ in 0..2 << 16 {
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bench_vec.push(rand.below(256) as u8);
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}
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c.bench_function("xxh3", |b| {
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b.iter(|| xxh3::xxh3_64_with_seed(black_box(&bench_vec), 0));
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});
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/*c.bench_function("const_xxh3", |b| {
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b.iter(|| const_xxh3::xxh3_64_with_seed(black_box(&bench_vec), 0))
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});*/
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c.bench_function("ahash", |b| {
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b.iter(|| {
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let mut hasher =
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black_box(ahash::RandomState::with_seeds(123, 456, 789, 123).build_hasher());
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hasher.write(black_box(&bench_vec));
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black_box(hasher.finish());
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});
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});
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c.bench_function("fxhash", |b| {
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b.iter(|| {
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let mut hasher = black_box(rustc_hash::FxHasher::default());
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hasher.write(black_box(&bench_vec));
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black_box(hasher.finish());
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});
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});
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}
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criterion_group!(benches, criterion_benchmark);
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criterion_main!(benches);
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