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-rw-r--r--src/bench/merkle_root.cpp26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/bench/merkle_root.cpp b/src/bench/merkle_root.cpp
new file mode 100644
index 0000000000..027b19125d
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+++ b/src/bench/merkle_root.cpp
@@ -0,0 +1,26 @@
+// 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);