git / moonbite-core / src/bench/ccoins_caching.cpp · raw

// Copyright (c) 2016-2020 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 <coins.h>#include <policy/policy.h>#include <script/signingprovider.h>#include <test/util/transaction_utils.h>#include <vector>// Microbenchmark for simple accesses to a CCoinsViewCache database. Note from// laanwj, "replicating the actual usage patterns of the client is hard though,// many times micro-benchmarks of the database showed completely different// characteristics than e.g. reindex timings. But that's not a requirement of// every benchmark."// (https://github.com/bitcoin/bitcoin/issues/7883#issuecomment-224807484)static void CCoinsCaching(benchmark::Bench& bench){    const ECCVerifyHandle verify_handle;    ECC_Start();    FillableSigningProvider keystore;    CCoinsView coinsDummy;    CCoinsViewCache coins(&coinsDummy);    std::vector<CMutableTransaction> dummyTransactions =        SetupDummyInputs(keystore, coins, {11 * COIN, 50 * COIN, 21 * COIN, 22 * COIN});    CMutableTransaction t1;    t1.vin.resize(3);    t1.vin[0].prevout.hash = dummyTransactions[0].GetHash();    t1.vin[0].prevout.n = 1;    t1.vin[0].scriptSig << std::vector<unsigned char>(65, 0);    t1.vin[1].prevout.hash = dummyTransactions[1].GetHash();    t1.vin[1].prevout.n = 0;    t1.vin[1].scriptSig << std::vector<unsigned char>(65, 0) << std::vector<unsigned char>(33, 4);    t1.vin[2].prevout.hash = dummyTransactions[1].GetHash();    t1.vin[2].prevout.n = 1;    t1.vin[2].scriptSig << std::vector<unsigned char>(65, 0) << std::vector<unsigned char>(33, 4);    t1.vout.resize(2);    t1.vout[0].nValue = 90 * COIN;    t1.vout[0].scriptPubKey << OP_1;    // Benchmark.    const CTransaction tx_1(t1);    bench.run([&] {        bool success = AreInputsStandard(tx_1, coins, false);        assert(success);    });    ECC_Stop();}BENCHMARK(CCoinsCaching);