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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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▤ db_bench_sqlite3.cc

▤ db_bench_tree_db.cc

▤ arith_uint256.hGuide

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▤ bitcoin-cli-res.rc

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▤ chainparams.hGuide

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▤ chainparamsbase.hGuide

▤ chainparamsseeds.h

▤ checkqueue.hGuide

▤ clientversion.cppGuide

▤ clientversion.hGuide

▤ cluster_linearize.h

▤ CMakeLists.txt

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bitcoin / src / leveldb / benchmarks / db_bench.cc

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29,823 bytes · SHA-256 444a25a3c277ac72… · View upstream ↗

251
252  void Report(const Slice& name) {
253    // Pretend at least one op was done in case we are running a benchmark
254    // that does not call FinishedSingleOp().
255    if (done_ < 1) done_ = 1;
256
257    std::string extra;
258    if (bytes_ > 0) {
259      // Rate is computed on actual elapsed time, not the sum of per-thread
260      // elapsed times.
261      double elapsed = (finish_ - start_) * 1e-6;
262      char rate[100];
263      snprintf(rate, sizeof(rate), "%6.1f MB/s",
264               (bytes_ / 1048576.0) / elapsed);
265      extra = rate;
266    }
267    AppendWithSpace(&extra, message_);
268
269    fprintf(stdout, "%-12s : %11.3f micros/op;%s%s\n", name.ToString().c_str(),
270            seconds_ * 1e6 / done_, (extra.empty() ? "" : " "), extra.c_str());
271    if (FLAGS_histogram) {
272      fprintf(stdout, "Microseconds per op:\n%s\n", hist_.ToString().c_str());
273    }
274    fflush(stdout);
275  }
276};
277
278// State shared by all concurrent executions of the same benchmark.
279struct SharedState {
280  port::Mutex mu;
281  port::CondVar cv GUARDED_BY(mu);
282  int total GUARDED_BY(mu);
283
284  // Each thread goes through the following states:
285  //    (1) initializing
286  //    (2) waiting for others to be initialized
287  //    (3) running
288  //    (4) done
289
290  int num_initialized GUARDED_BY(mu);
291  int num_done GUARDED_BY(mu);
292  bool start GUARDED_BY(mu);
293
294  SharedState(int total)
295      : cv(&mu), total(total), num_initialized(0), num_done(0), start(false) {}
296};
297
298// Per-thread state for concurrent executions of the same benchmark.
299struct ThreadState {
300  int tid;      // 0..n-1 when running in n threads
301  Random rand;  // Has different seeds for different threads
302  Stats stats;
303  SharedState* shared;
304
305  ThreadState(int index) : tid(index), rand(1000 + index), shared(nullptr) {}
306};
307
308}  // namespace
309
310class Benchmark {
311 private:
312  Cache* cache_;
313  const FilterPolicy* filter_policy_;
314  DB* db_;
315  int num_;
316  int value_size_;
317  int entries_per_batch_;
318  WriteOptions write_options_;
319  int reads_;
320  int heap_counter_;
321
322  void PrintHeader() {
323    const int kKeySize = 16;
324    PrintEnvironment();
325    fprintf(stdout, "Keys:       %d bytes each\n", kKeySize);
326    fprintf(stdout, "Values:     %d bytes each (%d bytes after compression)\n",
327            FLAGS_value_size,
328            static_cast<int>(FLAGS_value_size * FLAGS_compression_ratio + 0.5));
329    fprintf(stdout, "Entries:    %d\n", num_);
330    fprintf(stdout, "RawSize:    %.1f MB (estimated)\n",
331            ((static_cast<int64_t>(kKeySize + FLAGS_value_size) * num_) /
332             1048576.0));
333    fprintf(stdout, "FileSize:   %.1f MB (estimated)\n",
334            (((kKeySize + FLAGS_value_size * FLAGS_compression_ratio) * num_) /
335             1048576.0));
336    PrintWarnings();
337    fprintf(stdout, "------------------------------------------------\n");
338  }
339
340  void PrintWarnings() {
341#if defined(__GNUC__) && !defined(__OPTIMIZE__)
342    fprintf(
343        stdout,
344        "WARNING: Optimization is disabled: benchmarks unnecessarily slow\n");
345#endif
346#ifndef NDEBUG
347    fprintf(stdout,
348            "WARNING: Assertions are enabled; benchmarks unnecessarily slow\n");
349#endif
350
351    // See if snappy is working by attempting to compress a compressible string
352    const char text[] = "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy";
353    std::string compressed;
354    if (!port::Snappy_Compress(text, sizeof(text), &compressed)) {
355      fprintf(stdout, "WARNING: Snappy compression is not enabled\n");
356    } else if (compressed.size() >= sizeof(text)) {
357      fprintf(stdout, "WARNING: Snappy compression is not effective\n");
358    }
359  }
360
361  void PrintEnvironment() {
362    fprintf(stderr, "LevelDB:    version %d.%d\n", kMajorVersion,
363            kMinorVersion);
364
365#if defined(__linux)
366    time_t now = time(nullptr);
367    fprintf(stderr, "Date:       %s", ctime(&now));  // ctime() adds newline
368
369    FILE* cpuinfo = fopen("/proc/cpuinfo", "r");
370    if (cpuinfo != nullptr) {
371      char line[1000];
372      int num_cpus = 0;
373      std::string cpu_type;
374      std::string cache_size;
375      while (fgets(line, sizeof(line), cpuinfo) != nullptr) {
376        const char* sep = strchr(line, ':');
377        if (sep == nullptr) {
378          continue;
379        }
380        Slice key = TrimSpace(Slice(line, sep - 1 - line));
381        Slice val = TrimSpace(Slice(sep + 1));
382        if (key == "model name") {
383          ++num_cpus;
384          cpu_type = val.ToString();
385        } else if (key == "cache size") {
386          cache_size = val.ToString();
387        }
388      }
389      fclose(cpuinfo);
390      fprintf(stderr, "CPU:        %d * %s\n", num_cpus, cpu_type.c_str());
391      fprintf(stderr, "CPUCache:   %s\n", cache_size.c_str());
392    }
393#endif
394  }
395
396 public:
397  Benchmark()
398      : cache_(FLAGS_cache_size >= 0 ? NewLRUCache(FLAGS_cache_size) : nullptr),
399        filter_policy_(FLAGS_bloom_bits >= 0
400                           ? NewBloomFilterPolicy(FLAGS_bloom_bits)
401                           : nullptr),
402        db_(nullptr),
403        num_(FLAGS_num),
404        value_size_(FLAGS_value_size),
405        entries_per_batch_(1),
406        reads_(FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads),
407        heap_counter_(0) {
408    std::vector<std::string> files;
409    g_env->GetChildren(FLAGS_db, &files);
410    for (size_t i = 0; i < files.size(); i++) {
411      if (Slice(files[i]).starts_with("heap-")) {
412        g_env->DeleteFile(std::string(FLAGS_db) + "/" + files[i]);
413      }
414    }
415    if (!FLAGS_use_existing_db) {
416      DestroyDB(FLAGS_db, Options());
417    }
418  }
419
420  ~Benchmark() {
421    delete db_;
422    delete cache_;
423    delete filter_policy_;
424  }
425
426  void Run() {
427    PrintHeader();
428    Open();
429
430    const char* benchmarks = FLAGS_benchmarks;
431    while (benchmarks != nullptr) {
432      const char* sep = strchr(benchmarks, ',');
433      Slice name;
434      if (sep == nullptr) {
435        name = benchmarks;
436        benchmarks = nullptr;
437      } else {
438        name = Slice(benchmarks, sep - benchmarks);
439        benchmarks = sep + 1;
440      }
441
442      // Reset parameters that may be overridden below
443      num_ = FLAGS_num;
444      reads_ = (FLAGS_reads < 0 ? FLAGS_num : FLAGS_reads);
445      value_size_ = FLAGS_value_size;
446      entries_per_batch_ = 1;
447      write_options_ = WriteOptions();
448
449      void (Benchmark::*method)(ThreadState*) = nullptr;
450      bool fresh_db = false;
451      int num_threads = FLAGS_threads;
452
453      if (name == Slice("open")) {
454        method = &Benchmark::OpenBench;
455        num_ /= 10000;
456        if (num_ < 1) num_ = 1;
457      } else if (name == Slice("fillseq")) {
458        fresh_db = true;
459        method = &Benchmark::WriteSeq;
460      } else if (name == Slice("fillbatch")) {
461        fresh_db = true;
462        entries_per_batch_ = 1000;
463        method = &Benchmark::WriteSeq;
464      } else if (name == Slice("fillrandom")) {
465        fresh_db = true;
466        method = &Benchmark::WriteRandom;
467      } else if (name == Slice("overwrite")) {
468        fresh_db = false;
469        method = &Benchmark::WriteRandom;
470      } else if (name == Slice("fillsync")) {
471        fresh_db = true;
472        num_ /= 1000;
473        write_options_.sync = true;
474        method = &Benchmark::WriteRandom;
475      } else if (name == Slice("fill100K")) {
476        fresh_db = true;
477        num_ /= 1000;
478        value_size_ = 100 * 1000;
479        method = &Benchmark::WriteRandom;
480      } else if (name == Slice("readseq")) {
481        method = &Benchmark::ReadSequential;
482      } else if (name == Slice("readreverse")) {
483        method = &Benchmark::ReadReverse;
484      } else if (name == Slice("readrandom")) {
485        method = &Benchmark::ReadRandom;
486      } else if (name == Slice("readmissing")) {
487        method = &Benchmark::ReadMissing;
488      } else if (name == Slice("seekrandom")) {
489        method = &Benchmark::SeekRandom;
490      } else if (name == Slice("readhot")) {
491        method = &Benchmark::ReadHot;
492      } else if (name == Slice("readrandomsmall")) {
493        reads_ /= 1000;
494        method = &Benchmark::ReadRandom;
495      } else if (name == Slice("deleteseq")) {
496        method = &Benchmark::DeleteSeq;
497      } else if (name == Slice("deleterandom")) {
498        method = &Benchmark::DeleteRandom;
499      } else if (name == Slice("readwhilewriting")) {
500        num_threads++;  // Add extra thread for writing

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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 2Next 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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