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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
#include <benchmark/benchmark.h>
#include <random>
#include <rapidfuzz/distance/Levenshtein.hpp>
#include <string>
#include <vector>
std::string generate(int max_length)
{
std::string possible_characters = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
std::random_device rd;
std::mt19937 engine(rd());
std::uniform_int_distribution<> dist(0, static_cast<int>(possible_characters.size() - 1));
std::string ret = "";
for (int i = 0; i < max_length; i++) {
int random_index = dist(engine);
ret += possible_characters[static_cast<size_t>(random_index)];
}
return ret;
}
template <typename T>
std::basic_string<T> str_multiply(std::basic_string<T> a, unsigned int b)
{
std::basic_string<T> output;
while (b--)
output += a;
return output;
}
// Define another benchmark
static void BM_LevWeightedDist1(benchmark::State& state)
{
std::string a = "aaaaa aaaaa";
for (auto _ : state) {
benchmark::DoNotOptimize(rapidfuzz::levenshtein_distance(a, a));
}
state.SetLabel("Similar Strings");
}
static void BM_LevWeightedDist2(benchmark::State& state)
{
std::string a = "aaaaa aaaaa";
std::string b = "bbbbb bbbbb";
for (auto _ : state) {
benchmark::DoNotOptimize(rapidfuzz::levenshtein_distance(a, b));
}
state.SetLabel("Different Strings");
}
static void BM_LevNormWeightedDist1(benchmark::State& state)
{
std::string a = "aaaaa aaaaa";
for (auto _ : state) {
benchmark::DoNotOptimize(rapidfuzz::levenshtein_normalized_distance(a, a));
}
state.SetLabel("Similar Strings");
}
static void BM_LevNormWeightedDist2(benchmark::State& state)
{
std::string a = "aaaaa aaaaa";
std::string b = "bbbbb bbbbb";
for (auto _ : state) {
benchmark::DoNotOptimize(rapidfuzz::levenshtein_normalized_distance(a, b));
}
state.SetLabel("Different Strings");
}
static void BM_LevLongSimilarSequence(benchmark::State& state)
{
size_t len = state.range(0);
size_t score_cutoff = state.range(1);
std::string s1 = std::string("a") + str_multiply(std::string("b"), (len - 2)) + std::string("a");
std::string s2 = str_multiply(std::string("b"), len);
size_t num = 0;
for (auto _ : state) {
benchmark::DoNotOptimize(rapidfuzz::levenshtein_distance(s1, s2, {1, 1, 1}, score_cutoff));
++num;
}
state.counters["Rate"] = benchmark::Counter(static_cast<double>(num * len), benchmark::Counter::kIsRate);
state.counters["InvRate"] = benchmark::Counter(static_cast<double>(num * len),
benchmark::Counter::kIsRate | benchmark::Counter::kInvert);
}
static void BM_LevLongNonSimilarSequence(benchmark::State& state)
{
size_t len = state.range(0);
size_t score_cutoff = state.range(1);
std::string s1 = str_multiply(std::string("a"), len);
std::string s2 = str_multiply(std::string("b"), len);
size_t num = 0;
for (auto _ : state) {
benchmark::DoNotOptimize(rapidfuzz::levenshtein_distance(s1, s2, {1, 1, 1}, score_cutoff));
++num;
}
state.counters["Rate"] = benchmark::Counter(static_cast<double>(num * len), benchmark::Counter::kIsRate);
state.counters["InvRate"] = benchmark::Counter(static_cast<double>(num * len),
benchmark::Counter::kIsRate | benchmark::Counter::kInvert);
}
template <size_t MaxLen>
static void BM_Levenshtein(benchmark::State& state)
{
std::vector<std::string> seq1;
std::vector<std::string> seq2;
for (int i = 0; i < 256; i++)
seq1.push_back(generate(MaxLen));
for (int i = 0; i < 10000; i++)
seq2.push_back(generate(MaxLen));
size_t num = 0;
for (auto _ : state) {
for (size_t j = 0; j < seq2.size(); ++j)
for (size_t i = 0; i < seq1.size(); ++i)
benchmark::DoNotOptimize(rapidfuzz::levenshtein_distance(seq1[i], seq2[j]));
num += seq1.size() * seq2.size();
}
state.counters["Rate"] = benchmark::Counter(static_cast<double>(num), benchmark::Counter::kIsRate);
state.counters["InvRate"] = benchmark::Counter(static_cast<double>(num),
benchmark::Counter::kIsRate | benchmark::Counter::kInvert);
}
template <size_t MaxLen>
static void BM_Levenshtein_Cached(benchmark::State& state)
{
std::vector<std::string> seq1;
std::vector<std::string> seq2;
for (int i = 0; i < 256; i++)
seq1.push_back(generate(MaxLen));
for (int i = 0; i < 10000; i++)
seq2.push_back(generate(MaxLen));
size_t num = 0;
for (auto _ : state) {
for (const auto& str1 : seq1) {
rapidfuzz::CachedLevenshtein<char> scorer(str1);
for (size_t j = 0; j < seq2.size(); ++j)
benchmark::DoNotOptimize(scorer.similarity(seq2[j]));
}
num += seq1.size() * seq2.size();
}
state.counters["Rate"] = benchmark::Counter(static_cast<double>(num), benchmark::Counter::kIsRate);
state.counters["InvRate"] = benchmark::Counter(static_cast<double>(num),
benchmark::Counter::kIsRate | benchmark::Counter::kInvert);
}
#ifdef RAPIDFUZZ_SIMD
template <size_t MaxLen>
static void BM_Levenshtein_SIMD(benchmark::State& state)
{
std::vector<std::string> seq1;
std::vector<std::string> seq2;
std::vector<size_t> results(64);
for (int i = 0; i < 64; i++)
seq1.push_back(generate(MaxLen));
for (int i = 0; i < 10000; i++)
seq2.push_back(generate(MaxLen));
size_t num = 0;
for (auto _ : state) {
rapidfuzz::experimental::MultiLevenshtein<MaxLen> scorer(seq1.size());
for (const auto& str1 : seq1)
scorer.insert(str1);
for (const auto& str2 : seq2)
scorer.similarity(&results[0], results.size(), str2);
num += seq1.size() * seq2.size();
}
state.counters["Rate"] = benchmark::Counter(static_cast<double>(num), benchmark::Counter::kIsRate);
state.counters["InvRate"] = benchmark::Counter(static_cast<double>(num),
benchmark::Counter::kIsRate | benchmark::Counter::kInvert);
}
#endif
BENCHMARK(BM_LevLongSimilarSequence)
->Args({100, 30})
->Args({500, 30})
->Args({5000, 30})
->Args({10000, 30})
->Args({20000, 30})
->Args({50000, 30});
BENCHMARK(BM_LevLongNonSimilarSequence)
->Args({100, 30})
->Args({500, 30})
->Args({5000, 30})
->Args({10000, 30})
->Args({20000, 30})
->Args({50000, 30});
BENCHMARK(BM_LevWeightedDist1);
BENCHMARK(BM_LevWeightedDist2);
BENCHMARK(BM_LevNormWeightedDist1);
BENCHMARK(BM_LevNormWeightedDist2);
BENCHMARK_TEMPLATE(BM_Levenshtein, 8);
BENCHMARK_TEMPLATE(BM_Levenshtein, 16);
BENCHMARK_TEMPLATE(BM_Levenshtein, 32);
BENCHMARK_TEMPLATE(BM_Levenshtein, 64);
BENCHMARK_TEMPLATE(BM_Levenshtein_Cached, 8);
BENCHMARK_TEMPLATE(BM_Levenshtein_Cached, 16);
BENCHMARK_TEMPLATE(BM_Levenshtein_Cached, 32);
BENCHMARK_TEMPLATE(BM_Levenshtein_Cached, 64);
#ifdef RAPIDFUZZ_SIMD
BENCHMARK_TEMPLATE(BM_Levenshtein_SIMD, 8);
BENCHMARK_TEMPLATE(BM_Levenshtein_SIMD, 16);
BENCHMARK_TEMPLATE(BM_Levenshtein_SIMD, 32);
BENCHMARK_TEMPLATE(BM_Levenshtein_SIMD, 64);
#endif
BENCHMARK_MAIN();
|
