web3-proxy/linkedhashmap/benches/lru.rs

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Rust
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2022-05-05 22:07:09 +03:00
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use std::collections::hash_map;
struct Bar([u64; 4]);
const CAP: usize = 128;
fn bench_linkedhsahmap(c: &mut Criterion) {
use linkedhashmap::LinkedHashMap;
c.bench_function("linkedhashmap", |b| {
let mut map = LinkedHashMap::with_capacity_and_hasher(CAP, hash_map::RandomState::new());
let mut count = 0;
b.iter(|| {
count += 1;
let bar = black_box(Bar([0x42; 4]));
map.insert(count, bar);
if map.len() >= CAP {
map.pop_front();
}
});
});
}
fn bench_hashlink(c: &mut Criterion) {
use hashlink::LinkedHashMap;
c.bench_function("hashlink", |b| {
let mut map = LinkedHashMap::with_capacity_and_hasher(CAP, hash_map::RandomState::new());
let mut count = 0;
b.iter(|| {
count += 1;
let bar = black_box(Bar([0x42; 4]));
map.insert(count, bar);
if map.len() >= CAP {
map.pop_front();
}
});
});
}
fn bench_linked_hash_map(c: &mut Criterion) {
use linked_hash_map::LinkedHashMap;
c.bench_function("linked-hash-map", |b| {
let mut map = LinkedHashMap::with_capacity_and_hasher(CAP, hash_map::RandomState::new());
let mut count = 0;
b.iter(|| {
count += 1;
let bar = black_box(Bar([0x42; 4]));
map.insert(count, bar);
if map.len() >= CAP {
map.pop_front();
}
});
});
}
criterion_group!(
lru,
bench_linkedhsahmap,
bench_hashlink,
bench_linked_hash_map
);
criterion_main!(lru);