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Differential D9226 Diff 27696 src/bench/hashpadding.cpp

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src/bench/hashpadding.cpp

// Copyright (c) 2015-2018 The Bitcoin Core developers // Copyright (c) 2015-2018 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying // Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php. // file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <bench/bench.h> #include <bench/bench.h>
#include <hash.h> #include <hash.h>
#include <random.h> #include <random.h>
#include <uint256.h> #include <uint256.h>
static void PrePadded(benchmark::State &state) { static void PrePadded(benchmark::Bench &bench) {
CSHA256 hasher; CSHA256 hasher;
// Setup the salted hasher // Setup the salted hasher
uint256 nonce = GetRandHash(); uint256 nonce = GetRandHash();
hasher.Write(nonce.begin(), 32); hasher.Write(nonce.begin(), 32);
hasher.Write(nonce.begin(), 32); hasher.Write(nonce.begin(), 32);
uint256 data = GetRandHash(); uint256 data = GetRandHash();
while (state.KeepRunning()) { bench.run([&] {
uint8_t out[32]; uint8_t out[32];
CSHA256 h = hasher; CSHA256 h = hasher;
h.Write(data.begin(), 32); h.Write(data.begin(), 32);
h.Finalize(out); h.Finalize(out);
} });
} }
BENCHMARK(PrePadded, 10000); BENCHMARK(PrePadded);
static void RegularPadded(benchmark::State &state) { static void RegularPadded(benchmark::Bench &bench) {
CSHA256 hasher; CSHA256 hasher;
// Setup the salted hasher // Setup the salted hasher
uint256 nonce = GetRandHash(); uint256 nonce = GetRandHash();
uint256 data = GetRandHash(); uint256 data = GetRandHash();
while (state.KeepRunning()) { bench.run([&] {
uint8_t out[32]; uint8_t out[32];
CSHA256 h = hasher; CSHA256 h = hasher;
h.Write(nonce.begin(), 32); h.Write(nonce.begin(), 32);
h.Write(data.begin(), 32); h.Write(data.begin(), 32);
h.Finalize(out); h.Finalize(out);
} });
} }
BENCHMARK(RegularPadded, 10000); BENCHMARK(RegularPadded);