Files
bitcoin/src/bench/merkle_root.cpp
MarcoFalke fa5f297748 scripted-diff: [doc] Unify stale copyright headers
-BEGIN VERIFY SCRIPT-

 sed --in-place --regexp-extended \
   's;( 20[0-2][0-9])(-20[0-2][0-9])? The Bitcoin Core developers;\1-present The Bitcoin Core developers;g' \
   $( git grep -l 'The Bitcoin Core developers' -- ':(exclude)COPYING' ':(exclude)src/ipc/libmultiprocess' ':(exclude)src/minisketch' )

-END VERIFY SCRIPT-
2025-12-16 22:21:15 +01:00

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C++

// Copyright (c) 2016-present 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/bench.h>
#include <consensus/merkle.h>
#include <random.h>
#include <uint256.h>
#include <vector>
static void MerkleRoot(benchmark::Bench& bench)
{
FastRandomContext rng(true);
std::vector<uint256> leaves;
leaves.resize(9001);
for (auto& item : leaves) {
item = rng.rand256();
}
bench.batch(leaves.size()).unit("leaf").run([&] {
bool mutation = false;
uint256 hash = ComputeMerkleRoot(std::vector<uint256>(leaves), &mutation);
leaves[mutation] = hash;
});
}
BENCHMARK(MerkleRoot, benchmark::PriorityLevel::HIGH);