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

Release published 2026-10-28 · Snapshot fetched 2026-11-01. Latest stable release at fetch time; development branches and Git history are excluded. Only the selected code window and visible folders load here.

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1// Copyright (c) 2021-present The Bitcoin Core developers
2// Distributed under the MIT software license, see the accompanying
3// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4
5#include <bench/bench.h>
6#include <netaddress.h>
7#include <node/eviction.h>
8#include <random.h>
9#include <test/util/net.h>
10#include <util/time.h>
11
12#include <functional>
13#include <vector>
14
15static void EvictionProtectionCommon(
16    benchmark::Bench& bench,
17    int num_candidates,
18    std::function<void(NodeEvictionCandidate&)> candidate_setup_fn)
19{
20    using Candidates = std::vector<NodeEvictionCandidate>;
21    FastRandomContext random_context{true};
22
23    Candidates candidates{GetRandomNodeEvictionCandidates(num_candidates, random_context)};
24    for (auto& c : candidates) {
25        candidate_setup_fn(c);
26    }
27
28
29    bench.run([&] {
30        // creating a copy has an overhead of about 3%, so it does not influence the benchmark results much.
31        auto copy = candidates;
32        ProtectEvictionCandidatesByRatio(copy);
33    });
34}
35
36/* Benchmarks */
37
38static void EvictionProtection0Networks250Candidates(benchmark::Bench& bench)
39{
40    EvictionProtectionCommon(
41        bench,
42        /*num_candidates=*/250,
43        [](NodeEvictionCandidate& c) {
44            c.m_connected = NodeSeconds{std::chrono::seconds{c.id}};
45            c.m_network = NET_IPV4;
46        });
47}
48
49static void EvictionProtection1Networks250Candidates(benchmark::Bench& bench)
50{
51    EvictionProtectionCommon(
52        bench,
53        /*num_candidates=*/250,
54        [](NodeEvictionCandidate& c) {
55            c.m_connected = NodeSeconds{std::chrono::seconds{c.id}};
56            c.m_is_local = false;
57            if (c.id >= 130 && c.id < 240) { // 110 Tor
58                c.m_network = NET_ONION;
59            } else {
60                c.m_network = NET_IPV4;
61            }
62        });
63}
64
65static void EvictionProtection2Networks250Candidates(benchmark::Bench& bench)
66{
67    EvictionProtectionCommon(
68        bench,
69        /*num_candidates=*/250,
70        [](NodeEvictionCandidate& c) {
71            c.m_connected = NodeSeconds{std::chrono::seconds{c.id}};
72            c.m_is_local = false;
73            if (c.id >= 90 && c.id < 160) { // 70 Tor
74                c.m_network = NET_ONION;
75            } else if (c.id >= 170 && c.id < 250) { // 80 I2P
76                c.m_network = NET_I2P;
77            } else {
78                c.m_network = NET_IPV4;
79            }
80        });
81}
82
83static void EvictionProtection3Networks050Candidates(benchmark::Bench& bench)
84{
85    EvictionProtectionCommon(
86        bench,
87        /*num_candidates=*/50,
88        [](NodeEvictionCandidate& c) {
89            c.m_connected = NodeSeconds{std::chrono::seconds{c.id}};
90            c.m_is_local = (c.id == 28 || c.id == 47); //  2 localhost
91            if (c.id >= 30 && c.id < 47) {             // 17 I2P
92                c.m_network = NET_I2P;
93            } else if (c.id >= 24 && c.id < 28) { //  4 Tor
94                c.m_network = NET_ONION;
95            } else {
96                c.m_network = NET_IPV4;
97            }
98        });
99}
100
101static void EvictionProtection3Networks100Candidates(benchmark::Bench& bench)
102{
103    EvictionProtectionCommon(
104        bench,
105        /*num_candidates=*/100,
106        [](NodeEvictionCandidate& c) {
107            c.m_connected = NodeSeconds{std::chrono::seconds{c.id}};
108            c.m_is_local = (c.id >= 55 && c.id < 60); //  5 localhost
109            if (c.id >= 70 && c.id < 80) {            // 10 I2P
110                c.m_network = NET_I2P;
111            } else if (c.id >= 80 && c.id < 96) { // 16 Tor
112                c.m_network = NET_ONION;
113            } else {
114                c.m_network = NET_IPV4;
115            }
116        });
117}
118
119static void EvictionProtection3Networks250Candidates(benchmark::Bench& bench)
120{
121    EvictionProtectionCommon(
122        bench,
123        /*num_candidates=*/250,
124        [](NodeEvictionCandidate& c) {
125            c.m_connected = NodeSeconds{std::chrono::seconds{c.id}};
126            c.m_is_local = (c.id >= 140 && c.id < 160); // 20 localhost
127            if (c.id >= 170 && c.id < 180) {            // 10 I2P
128                c.m_network = NET_I2P;
129            } else if (c.id >= 190 && c.id < 240) { // 50 Tor
130                c.m_network = NET_ONION;
131            } else {
132                c.m_network = NET_IPV4;
133            }
134        });
135}
136
137// Candidate numbers used for the benchmarks:
138// -  50 candidates simulates a possible use of -maxconnections
139// - 100 candidates approximates an average node with default settings
140// - 250 candidates is the number of peers reported by operators of busy nodes
141
142// No disadvantaged networks, with 250 eviction candidates.
143BENCHMARK(EvictionProtection0Networks250Candidates);
144
145// 1 disadvantaged network (Tor) with 250 eviction candidates.
146BENCHMARK(EvictionProtection1Networks250Candidates);
147
148// 2 disadvantaged networks (I2P, Tor) with 250 eviction candidates.
149BENCHMARK(EvictionProtection2Networks250Candidates);
150
151// 3 disadvantaged networks (I2P/localhost/Tor) with 50/100/250 eviction candidates.
152BENCHMARK(EvictionProtection3Networks050Candidates);
153BENCHMARK(EvictionProtection3Networks100Candidates);
154BENCHMARK(EvictionProtection3Networks250Candidates);
155

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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