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Differential D9226 Diff 27698 src/bench/ccoins_caching.cpp

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src/bench/ccoins_caching.cpp

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#include <vector> #include <vector>
// Microbenchmark for simple accesses to a CCoinsViewCache database. Note from // Microbenchmark for simple accesses to a CCoinsViewCache database. Note from
// laanwj, "replicating the actual usage patterns of the client is hard though, // laanwj, "replicating the actual usage patterns of the client is hard though,
// many times micro-benchmarks of the database showed completely different // many times micro-benchmarks of the database showed completely different
// characteristics than e.g. reindex timings. But that's not a requirement of // characteristics than e.g. reindex timings. But that's not a requirement of
// every benchmark." // every benchmark."
// (https://github.com/bitcoin/bitcoin/issues/7883#issuecomment-224807484) // (https://github.com/bitcoin/bitcoin/issues/7883#issuecomment-224807484)
static void CCoinsCaching(benchmark::State &state) { static void CCoinsCaching(benchmark::Bench &bench) {
const ECCVerifyHandle verify_handle; const ECCVerifyHandle verify_handle;
ECC_Start(); ECC_Start();
FillableSigningProvider keystore; FillableSigningProvider keystore;
CCoinsView coinsDummy; CCoinsView coinsDummy;
CCoinsViewCache coins(&coinsDummy); CCoinsViewCache coins(&coinsDummy);
std::vector<CMutableTransaction> dummyTransactions = SetupDummyInputs( std::vector<CMutableTransaction> dummyTransactions = SetupDummyInputs(
keystore, coins, {{11 * COIN, 50 * COIN, 21 * COIN, 22 * COIN}}); keystore, coins, {{11 * COIN, 50 * COIN, 21 * COIN, 22 * COIN}});
CMutableTransaction t1; CMutableTransaction t1;
t1.vin.resize(3); t1.vin.resize(3);
t1.vin[0].prevout = COutPoint(dummyTransactions[0].GetId(), 1); t1.vin[0].prevout = COutPoint(dummyTransactions[0].GetId(), 1);
t1.vin[0].scriptSig << std::vector<uint8_t>(65, 0); t1.vin[0].scriptSig << std::vector<uint8_t>(65, 0);
t1.vin[1].prevout = COutPoint(dummyTransactions[1].GetId(), 0); t1.vin[1].prevout = COutPoint(dummyTransactions[1].GetId(), 0);
t1.vin[1].scriptSig << std::vector<uint8_t>(65, 0) t1.vin[1].scriptSig << std::vector<uint8_t>(65, 0)
<< std::vector<uint8_t>(33, 4); << std::vector<uint8_t>(33, 4);
t1.vin[2].prevout = COutPoint(dummyTransactions[1].GetId(), 1); t1.vin[2].prevout = COutPoint(dummyTransactions[1].GetId(), 1);
t1.vin[2].scriptSig << std::vector<uint8_t>(65, 0) t1.vin[2].scriptSig << std::vector<uint8_t>(65, 0)
<< std::vector<uint8_t>(33, 4); << std::vector<uint8_t>(33, 4);
t1.vout.resize(2); t1.vout.resize(2);
t1.vout[0].nValue = 90 * COIN; t1.vout[0].nValue = 90 * COIN;
t1.vout[0].scriptPubKey << OP_1; t1.vout[0].scriptPubKey << OP_1;
// Benchmark. // Benchmark.
while (state.KeepRunning()) { bench.run([&] {
CTransaction t(t1); CTransaction t(t1);
bool success = bool success =
AreInputsStandard(t, coins, STANDARD_SCRIPT_VERIFY_FLAGS); AreInputsStandard(t, coins, STANDARD_SCRIPT_VERIFY_FLAGS);
assert(success); assert(success);
} });
ECC_Stop(); ECC_Stop();
} }
BENCHMARK(CCoinsCaching, 170 * 1000); BENCHMARK(CCoinsCaching);