106 lines
4.5 KiB
C++
106 lines
4.5 KiB
C++
#include "benchmark/benchmark.h"
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#include <nlohmann/json.hpp>
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#include <fstream>
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using json = nlohmann::json;
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//////////////////////////////////////////////////////////////////////////////
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// parse JSON from file
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//////////////////////////////////////////////////////////////////////////////
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static void ParseFile(benchmark::State& state, const char* filename)
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{
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while (state.KeepRunning())
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{
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state.PauseTiming();
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auto* f = new std::ifstream(filename);
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auto* j = new json();
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state.ResumeTiming();
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*j = json::parse(*f);
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state.PauseTiming();
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delete f;
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delete j;
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state.ResumeTiming();
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}
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std::ifstream file(filename, std::ios::binary | std::ios::ate);
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state.SetBytesProcessed(state.iterations() * file.tellg());
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}
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BENCHMARK_CAPTURE(ParseFile, jeopardy, "data/jeopardy/jeopardy.json");
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BENCHMARK_CAPTURE(ParseFile, canada, "data/nativejson-benchmark/canada.json");
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BENCHMARK_CAPTURE(ParseFile, citm_catalog, "data/nativejson-benchmark/citm_catalog.json");
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BENCHMARK_CAPTURE(ParseFile, twitter, "data/nativejson-benchmark/twitter.json");
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BENCHMARK_CAPTURE(ParseFile, floats, "data/numbers/floats.json");
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BENCHMARK_CAPTURE(ParseFile, signed_ints, "data/numbers/signed_ints.json");
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BENCHMARK_CAPTURE(ParseFile, unsigned_ints, "data/numbers/unsigned_ints.json");
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//////////////////////////////////////////////////////////////////////////////
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// parse JSON from string
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//////////////////////////////////////////////////////////////////////////////
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static void ParseString(benchmark::State& state, const char* filename)
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{
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std::ifstream f(filename);
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std::string str((std::istreambuf_iterator<char>(f)), std::istreambuf_iterator<char>());
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while (state.KeepRunning())
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{
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state.PauseTiming();
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auto* j = new json();
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state.ResumeTiming();
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*j = json::parse(str);
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state.PauseTiming();
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delete j;
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state.ResumeTiming();
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}
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state.SetBytesProcessed(state.iterations() * str.size());
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}
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BENCHMARK_CAPTURE(ParseString, jeopardy, "data/jeopardy/jeopardy.json");
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BENCHMARK_CAPTURE(ParseString, canada, "data/nativejson-benchmark/canada.json");
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BENCHMARK_CAPTURE(ParseString, citm_catalog, "data/nativejson-benchmark/citm_catalog.json");
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BENCHMARK_CAPTURE(ParseString, twitter, "data/nativejson-benchmark/twitter.json");
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BENCHMARK_CAPTURE(ParseString, floats, "data/numbers/floats.json");
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BENCHMARK_CAPTURE(ParseString, signed_ints, "data/numbers/signed_ints.json");
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BENCHMARK_CAPTURE(ParseString, unsigned_ints, "data/numbers/unsigned_ints.json");
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//////////////////////////////////////////////////////////////////////////////
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// serialize JSON
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//////////////////////////////////////////////////////////////////////////////
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static void Dump(benchmark::State& state, const char* filename, int indent)
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{
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std::ifstream f(filename);
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std::string str((std::istreambuf_iterator<char>(f)), std::istreambuf_iterator<char>());
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json j = json::parse(str);
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while (state.KeepRunning())
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{
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j.dump(indent);
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}
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state.SetBytesProcessed(state.iterations() * j.dump(indent).size());
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}
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BENCHMARK_CAPTURE(Dump, jeopardy / -, "data/jeopardy/jeopardy.json", -1);
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BENCHMARK_CAPTURE(Dump, jeopardy / 4, "data/jeopardy/jeopardy.json", 4);
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BENCHMARK_CAPTURE(Dump, canada / -, "data/nativejson-benchmark/canada.json", -1);
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BENCHMARK_CAPTURE(Dump, canada / 4, "data/nativejson-benchmark/canada.json", 4);
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BENCHMARK_CAPTURE(Dump, citm_catalog / -, "data/nativejson-benchmark/citm_catalog.json", -1);
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BENCHMARK_CAPTURE(Dump, citm_catalog / 4, "data/nativejson-benchmark/citm_catalog.json", 4);
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BENCHMARK_CAPTURE(Dump, twitter / -, "data/nativejson-benchmark/twitter.json", -1);
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BENCHMARK_CAPTURE(Dump, twitter / 4, "data/nativejson-benchmark/twitter.json", 4);
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BENCHMARK_CAPTURE(Dump, floats / -, "data/numbers/floats.json", -1);
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BENCHMARK_CAPTURE(Dump, floats / 4, "data/numbers/floats.json", 4);
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BENCHMARK_CAPTURE(Dump, signed_ints / -, "data/numbers/signed_ints.json", -1);
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BENCHMARK_CAPTURE(Dump, signed_ints / 4, "data/numbers/signed_ints.json", 4);
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BENCHMARK_CAPTURE(Dump, unsigned_ints / -, "data/numbers/unsigned_ints.json", -1);
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BENCHMARK_CAPTURE(Dump, unsigned_ints / 4, "data/numbers/unsigned_ints.json", 4);
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BENCHMARK_MAIN();
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