bitcoin/src/bench/merkle_root.cpp
2018-05-08 07:44:13 -07:00

26 lines
687 B
C++

// Copyright (c) 2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "bench.h"
#include "uint256.h"
#include "random.h"
#include "consensus/merkle.h"
static void MerkleRoot(benchmark::State& state)
{
FastRandomContext rng(true);
std::vector<uint256> leaves;
leaves.resize(9001);
for (auto& item : leaves) {
item = rng.rand256();
}
while (state.KeepRunning()) {
bool mutation = false;
uint256 hash = ComputeMerkleRoot(leaves, &mutation);
leaves[mutation] = hash;
}
}
BENCHMARK(MerkleRoot, 800);