openethereum/util/patricia-trie-ethereum/benches/rlp_node_codec.rs

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// Copyright 2015-2020 Parity Technologies (UK) Ltd.
// This file is part of Open Ethereum.
// Open Ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Open Ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Open Ethereum. If not, see <http://www.gnu.org/licenses/>.
//! Benchmarking RlpNodeCodec decoding performance
extern crate criterion;
extern crate patricia_trie_ethereum as ethtrie;
extern crate trie_db;
extern crate ethereum_types;
extern crate rlp;
use criterion::{Criterion, criterion_group, criterion_main};
use ethereum_types::H256;
use ethtrie::RlpNodeCodec;
use rlp::RlpStream;
use trie_db::NodeCodec;
fn decoding(c: &mut Criterion) {
c.bench_function("decode leaf (inline)", |b| {
let mut stream = RlpStream::new_list(2);
stream.append(&"cat").append(&"dog");
let data = stream.out();
b.iter(|| { RlpNodeCodec::decode(&data) });
});
c.bench_function("decode extension (inline)", |b| {
let mut stream = RlpStream::new_list(2);
let payload = vec![0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9u8];
stream.append(&"").append(&payload);
let data = stream.out();
b.iter(|| { RlpNodeCodec::decode(&data) });
});
c.bench_function("decode extension (hash)", |b| {
let mut stream = RlpStream::new_list(2);
let payload = H256::random();
stream.append(&"").append(&payload);
let data = stream.out();
b.iter(|| { RlpNodeCodec::decode(&data) });
});
c.bench_function("decode branch (hash)", |b| {
let mut stream = RlpStream::new_list(17);
for _ in 0..17 {
stream.append(&H256::random());
}
let data = stream.out();
b.iter(|| { RlpNodeCodec::decode(&data) });
});
c.bench_function("decode branch (inline)", |b| {
let mut stream = RlpStream::new_list(17);
for _ in 0..17 {
stream.append(&[&H256::random().as_bytes(), H256::random().as_bytes()].concat());
}
let data = stream.out();
b.iter(|| { RlpNodeCodec::decode(&data) });
});
c.bench_function("decode empty data", |b| {
let mut stream = RlpStream::new();
stream.append_empty_data();
let data = stream.out();
b.iter(|| { RlpNodeCodec::decode(&data)});
});
}
criterion_group!(benches, decoding);
criterion_main!(benches);