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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

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bitcoin / bitcoinstable

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▤ checkblockindex.cpp

▤ checkqueue.cpp

▤ cluster_linearize.cpp

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▤ logging.cpp

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bitcoin / src / bench / nanobench.h

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3001} // namespace detail
3002
3003// Result returned after a benchmark has finished. Can be used as a baseline for relative().
3004Result::Result(Config benchmarkConfig)
3005    : mConfig(std::move(benchmarkConfig))
3006    , mNameToMeasurements{detail::u(Result::Measure::_size)} {}
3007
3008void Result::add(Clock::duration totalElapsed, uint64_t iters, detail::PerformanceCounters const& pc) {
3009    using detail::d;
3010    using detail::u;
3011
3012    double const dIters = d(iters);
3013    mNameToMeasurements[u(Result::Measure::iterations)].push_back(dIters);
3014
3015    mNameToMeasurements[u(Result::Measure::elapsed)].push_back(d(totalElapsed) / dIters);
3016    if (pc.has().pageFaults) {
3017        mNameToMeasurements[u(Result::Measure::pagefaults)].push_back(d(pc.val().pageFaults) / dIters);
3018    }
3019    if (pc.has().cpuCycles) {
3020        mNameToMeasurements[u(Result::Measure::cpucycles)].push_back(d(pc.val().cpuCycles) / dIters);
3021    }
3022    if (pc.has().contextSwitches) {
3023        mNameToMeasurements[u(Result::Measure::contextswitches)].push_back(d(pc.val().contextSwitches) / dIters);
3024    }
3025    if (pc.has().instructions) {
3026        mNameToMeasurements[u(Result::Measure::instructions)].push_back(d(pc.val().instructions) / dIters);
3027    }
3028    if (pc.has().branchInstructions) {
3029        double branchInstructions = 0.0;
3030        // correcting branches: remove branch introduced by the while (...) loop for each iteration.
3031        if (pc.val().branchInstructions > iters + 1U) {
3032            branchInstructions = d(pc.val().branchInstructions - (iters + 1U));
3033        }
3034        mNameToMeasurements[u(Result::Measure::branchinstructions)].push_back(branchInstructions / dIters);
3035
3036        if (pc.has().branchMisses) {
3037            // correcting branch misses
3038            double branchMisses = d(pc.val().branchMisses);
3039            if (branchMisses > branchInstructions) {
3040                // can't have branch misses when there were branches...
3041                branchMisses = branchInstructions;
3042            }
3043
3044            // assuming at least one missed branch for the loop
3045            branchMisses -= 1.0;
3046            if (branchMisses < 1.0) {
3047                branchMisses = 1.0;
3048            }
3049            mNameToMeasurements[u(Result::Measure::branchmisses)].push_back(branchMisses / dIters);
3050        }
3051    }
3052}
3053
3054Config const& Result::config() const noexcept {
3055    return mConfig;
3056}
3057
3058inline double calcMedian(std::vector<double>& data) {
3059    if (data.empty()) {
3060        return 0.0;
3061    }
3062    std::sort(data.begin(), data.end());
3063
3064    auto midIdx = data.size() / 2U;
3065    if (1U == (data.size() & 1U)) {
3066        return data[midIdx];
3067    }
3068    return (data[midIdx - 1U] + data[midIdx]) / 2U;
3069}
3070
3071double Result::median(Measure m) const {
3072    // create a copy so we can sort
3073    auto data = mNameToMeasurements[detail::u(m)];
3074    return calcMedian(data);
3075}
3076
3077double Result::average(Measure m) const {
3078    using detail::d;
3079    auto const& data = mNameToMeasurements[detail::u(m)];
3080    if (data.empty()) {
3081        return 0.0;
3082    }
3083
3084    // create a copy so we can sort
3085    return sum(m) / d(data.size());
3086}
3087
3088double Result::medianAbsolutePercentError(Measure m) const {
3089    // create copy
3090    auto data = mNameToMeasurements[detail::u(m)];
3091
3092    // calculates MdAPE which is the median of percentage error
3093    // see https://support.numxl.com/hc/en-us/articles/115001223503-MdAPE-Median-Absolute-Percentage-Error
3094    auto med = calcMedian(data);
3095
3096    // transform the data to absolute error
3097    for (auto& x : data) {
3098        x = (x - med) / x;
3099        if (x < 0) {
3100            x = -x;
3101        }
3102    }
3103    return calcMedian(data);
3104}
3105
3106double Result::sum(Measure m) const noexcept {
3107    auto const& data = mNameToMeasurements[detail::u(m)];
3108    return std::accumulate(data.begin(), data.end(), 0.0);
3109}
3110
3111double Result::sumProduct(Measure m1, Measure m2) const noexcept {
3112    auto const& data1 = mNameToMeasurements[detail::u(m1)];
3113    auto const& data2 = mNameToMeasurements[detail::u(m2)];
3114
3115    if (data1.size() != data2.size()) {
3116        return 0.0;
3117    }
3118
3119    double result = 0.0;
3120    for (size_t i = 0, s = data1.size(); i != s; ++i) {
3121        result += data1[i] * data2[i];
3122    }
3123    return result;
3124}
3125
3126bool Result::has(Measure m) const noexcept {
3127    return !mNameToMeasurements[detail::u(m)].empty();
3128}
3129
3130double Result::get(size_t idx, Measure m) const {
3131    auto const& data = mNameToMeasurements[detail::u(m)];
3132    return data.at(idx);
3133}
3134
3135bool Result::empty() const noexcept {
3136    return 0U == size();
3137}
3138
3139size_t Result::size() const noexcept {
3140    auto const& data = mNameToMeasurements[detail::u(Measure::elapsed)];
3141    return data.size();
3142}
3143
3144double Result::minimum(Measure m) const noexcept {
3145    auto const& data = mNameToMeasurements[detail::u(m)];
3146    if (data.empty()) {
3147        return 0.0;
3148    }
3149
3150    // here its save to assume that at least one element is there
3151    return *std::min_element(data.begin(), data.end());
3152}
3153
3154double Result::maximum(Measure m) const noexcept {
3155    auto const& data = mNameToMeasurements[detail::u(m)];
3156    if (data.empty()) {
3157        return 0.0;
3158    }
3159
3160    // here its save to assume that at least one element is there
3161    return *std::max_element(data.begin(), data.end());
3162}
3163
3164std::string const& Result::context(char const* variableName) const {
3165    return mConfig.mContext.at(variableName);
3166}
3167
3168std::string const& Result::context(std::string const& variableName) const {
3169    return mConfig.mContext.at(variableName);
3170}
3171
3172Result::Measure Result::fromString(std::string const& str) {
3173    if (str == "elapsed") {
3174        return Measure::elapsed;
3175    }
3176    if (str == "iterations") {
3177        return Measure::iterations;
3178    }
3179    if (str == "pagefaults") {
3180        return Measure::pagefaults;
3181    }
3182    if (str == "cpucycles") {
3183        return Measure::cpucycles;
3184    }
3185    if (str == "contextswitches") {
3186        return Measure::contextswitches;
3187    }
3188    if (str == "instructions") {
3189        return Measure::instructions;
3190    }
3191    if (str == "branchinstructions") {
3192        return Measure::branchinstructions;
3193    }
3194    if (str == "branchmisses") {
3195        return Measure::branchmisses;
3196    }
3197    // not found, return _size
3198    return Measure::_size;
3199}
3200
3201// Configuration of a microbenchmark.
3202Bench::Bench() {
3203    mConfig.mOut = &std::cout;
3204}
3205
3206Bench::Bench(Bench&&) noexcept = default;
3207Bench& Bench::operator=(Bench&&) noexcept(ANKERL_NANOBENCH(NOEXCEPT_STRING_MOVE)) = default;
3208Bench::Bench(Bench const&) = default;
3209Bench& Bench::operator=(Bench const&) = default;
3210Bench::~Bench() noexcept = default;
3211
3212double Bench::batch() const noexcept {
3213    return mConfig.mBatch;
3214}
3215
3216double Bench::complexityN() const noexcept {
3217    return mConfig.mComplexityN;
3218}
3219
3220// Set a baseline to compare it to. 100% it is exactly as fast as the baseline, >100% means it is faster than the baseline, <100%
3221// means it is slower than the baseline.
3222Bench& Bench::relative(bool isRelativeEnabled) noexcept {
3223    mConfig.mIsRelative = isRelativeEnabled;
3224    return *this;
3225}
3226bool Bench::relative() const noexcept {
3227    return mConfig.mIsRelative;
3228}
3229
3230Bench& Bench::performanceCounters(bool showPerformanceCounters) noexcept {
3231    mConfig.mShowPerformanceCounters = showPerformanceCounters;
3232    return *this;
3233}
3234bool Bench::performanceCounters() const noexcept {
3235    return mConfig.mShowPerformanceCounters;
3236}
3237
3238// Operation unit. Defaults to "op", could be e.g. "byte" for string processing.
3239// If u differs from currently set unit, the stored results will be cleared.
3240// Use singular (byte, not bytes).
3241Bench& Bench::unit(char const* u) {
3242    if (u != mConfig.mUnit) {
3243        mResults.clear();
3244    }
3245    mConfig.mUnit = u;
3246    return *this;
3247}
3248
3249Bench& Bench::unit(std::string const& u) {
3250    return unit(u.c_str());

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440 guided files · 2,580 pending. Guides cover key sections, not every line.

cmake/bitcoin-build-config.h.in src/consensus/amount.h src/consensus/consensus.h src/primitives/block.h src/primitives/transaction.h src/crypto/sha256.h src/util/moneystr.h src/clientversion.h src/uint256.h src/script/script.h src/policy/policy.h CMakeLists.txt README.md COPYING src/consensus/tx_check.cpp src/consensus/tx_verify.cpp src/consensus/merkle.cpp src/pow.cpp src/validation.cpp src/script/interpreter.cpp src/script/solver.cpp src/script/sign.cpp src/key_io.cpp src/net.cpp src/net_processing.cpp src/netaddress.cpp src/protocol.h src/wallet/wallet.cpp src/wallet/spend.cpp

← Previous 250 linesCode page 13Next 250 lines →

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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