1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
#include <cassert>
#include <cstdlib>
#include <ctime>
#include <format>
#include <fstream>
#include <iostream>
#include <nlohmann/json.hpp>
#include <simdjson.h>
#include <string>
#include "twitter_data.h"
#include "nlohmann_twitter_data.h"
#include "../benchmark_utils/benchmark_helper.h"
#if SIMDJSON_BENCH_CPP_REFLECT
#include <rfl.hpp>
#include <rfl/json.hpp>
void bench_reflect_cpp(TwitterData &data) {
std::string output = rfl::json::write(data);
size_t output_volume = output.size();
printf("# output volume: %zu bytes\n", output_volume);
volatile size_t measured_volume = 0;
pretty_print(1, output_volume, "bench_reflect_cpp",
bench([&data, &measured_volume, &output_volume]() {
std::string output = rfl::json::write(data);
measured_volume = output.size();
if (measured_volume != output_volume) {
printf("mismatch\n");
}
}));
}
#endif // SIMDJSON_BENCH_CPP_REFLECT
#ifdef SIMDJSON_RUST_VERSION
#include "../serde-benchmark/serde_benchmark.h"
void bench_rust(serde_benchmark::TwitterData *data) {
const char * output = serde_benchmark::str_from_twitter(data);
size_t output_volume = strlen(output);
printf("# output volume: %zu bytes\n", output_volume);
volatile size_t measured_volume = 0;
pretty_print(1, output_volume, "bench_rust",
bench([&data, &measured_volume, &output_volume]() {
const char * output = serde_benchmark::str_from_twitter(data);
serde_benchmark::free_string(output);
}));
}
#endif
template <class T> void bench_simdjson_static_reflection(T &data) {
simdjson::builder::string_builder sb;
simdjson::builder::append(sb, data);
std::string_view p;
if(sb.view().get(p)) {
std::cerr << "Error!" << std::endl;
}
size_t output_volume = p.size();
sb.clear();
printf("# output volume: %zu bytes\n", output_volume);
volatile size_t measured_volume = 0;
pretty_print(sizeof(data), output_volume, "bench_simdjson_static_reflection",
bench([&data, &measured_volume, &output_volume, &sb]() {
sb.clear();
simdjson::builder::append(sb, data);
std::string_view p;
if(sb.view().get(p)) {
std::cerr << "Error!" << std::endl;
}
measured_volume = sb.size();
if (measured_volume != output_volume) {
printf("mismatch\n");
}
}));
}
void bench_nlohmann(TwitterData &data) {
std::string output = nlohmann_serialize(data);
size_t output_volume = output.size();
printf("# output volume: %zu bytes\n", output_volume);
volatile size_t measured_volume = 0;
pretty_print(1, output_volume, "bench_nlohmann",
bench([&data, &measured_volume, &output_volume]() {
std::string output = nlohmann_serialize(data);
measured_volume = output.size();
if (measured_volume != output_volume) {
printf("mismatch\n");
}
}));
}
size_t WriteCallback(void *contents, size_t size, size_t nmemb, void *userp) {
((std::string *)userp)->append((char *)contents, size * nmemb);
return size * nmemb;
}
std::string read_file(std::string filename) {
printf("# Reading file %s\n", filename.c_str());
constexpr size_t read_size = 4096;
auto stream = std::ifstream(filename.c_str());
stream.exceptions(std::ios_base::badbit);
std::string out;
std::string buf(read_size, '\0');
while (stream.read(&buf[0], read_size)) {
out.append(buf, 0, size_t(stream.gcount()));
}
out.append(buf, 0, size_t(stream.gcount()));
return out;
}
// Function to check if benchmark name contains filter substring
bool matches_filter(const std::string& benchmark_name, const std::string& filter) {
return filter.empty() || benchmark_name.find(filter) != std::string::npos;
}
int main(int argc, char* argv[]) {
std::string filter;
// Parse command-line arguments
for (int i = 1; i < argc; ++i) {
if (strcmp(argv[i], "-f") == 0 || strcmp(argv[i], "--filter") == 0) {
if (i + 1 < argc) {
filter = argv[++i];
} else {
std::cerr << "Error: -f/--filter requires an argument" << std::endl;
return EXIT_FAILURE;
}
}
}
// Testing correctness of round-trip (serialization + deserialization)
std::string json_str = read_file(JSON_FILE);
// Loading up the data into a structure.
simdjson::ondemand::parser parser;
simdjson::ondemand::document doc;
if(parser.iterate(simdjson::pad(json_str)).get(doc)) {
std::cerr << "Error loading the document!" << std::endl;
return EXIT_FAILURE;
}
TwitterData my_struct;
if(doc.get<TwitterData>().get(my_struct)) {
std::cerr << "Error loading TwitterData!" << std::endl;
return EXIT_FAILURE;
}
// Benchmarking the serialization
if (matches_filter("nlohmann", filter)) {
bench_nlohmann(my_struct);
}
if (matches_filter("simdjson_static_reflection", filter)) {
bench_simdjson_static_reflection(my_struct);
}
#ifdef SIMDJSON_RUST_VERSION
if (matches_filter("rust", filter)) {
printf("# WARNING: The Rust benchmark may not be directly comparable since it does not use an equivalent data structure.\n");
serde_benchmark::TwitterData * td = serde_benchmark::twitter_from_str(json_str.c_str(), json_str.size());
bench_rust(td);
serde_benchmark::free_twitter(td);
}
#endif
#if SIMDJSON_BENCH_CPP_REFLECT
if (matches_filter("reflect_cpp", filter)) {
bench_reflect_cpp(my_struct);
}
#endif
return EXIT_SUCCESS;
}
|
