91 lines
2.5 KiB
Rust
91 lines
2.5 KiB
Rust
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// Copyright 2017, 2018 Parity Technologies
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#[macro_use]
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extern crate criterion;
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use criterion::{black_box, Criterion};
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criterion_group!(
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benches,
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instantiation,
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compare_to_null_embedded_in_struct,
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compare_to_null_in_const,
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contains_with_non_null_key,
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contains_with_null_key
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);
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criterion_main!(benches);
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extern crate hash_db;
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extern crate keccak_hasher;
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extern crate memory_db;
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use hash_db::{HashDB, Hasher};
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use keccak_hasher::KeccakHasher;
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use memory_db::MemoryDB;
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fn instantiation(b: &mut Criterion) {
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b.bench_function("instantiation", |b| {
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b.iter(|| {
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MemoryDB::<KeccakHasher, Vec<u8>>::default();
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})
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});
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}
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fn compare_to_null_embedded_in_struct(b: &mut Criterion) {
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struct X {
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a_hash: <KeccakHasher as Hasher>::Out,
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};
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let x = X {
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a_hash: KeccakHasher::hash(&[0u8][..]),
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};
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let key = KeccakHasher::hash(b"abc");
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b.bench_function("compare_to_null_embedded_in_struct", move |b| {
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b.iter(|| {
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black_box(key == x.a_hash);
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})
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});
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}
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fn compare_to_null_in_const(b: &mut Criterion) {
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let key = KeccakHasher::hash(b"abc");
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b.bench_function("compare_to_null_in_const", move |b| {
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b.iter(|| {
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black_box(key == [0u8; 32]);
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})
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});
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}
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fn contains_with_non_null_key(b: &mut Criterion) {
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let mut m = MemoryDB::<KeccakHasher, Vec<u8>>::default();
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let key = KeccakHasher::hash(b"abc");
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m.insert(b"abcefghijklmnopqrstuvxyz");
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b.bench_function("contains_with_non_null_key", move |b| {
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b.iter(|| {
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m.contains(&key);
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})
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});
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}
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fn contains_with_null_key(b: &mut Criterion) {
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let mut m = MemoryDB::<KeccakHasher, Vec<u8>>::default();
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let null_key = KeccakHasher::hash(&[0u8][..]);
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m.insert(b"abcefghijklmnopqrstuvxyz");
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b.bench_function("contains_with_null_key", move |b| {
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b.iter(|| {
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m.contains(&null_key);
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})
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});
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}
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