1 /*
2 * Copyright 2021 Google LLC
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <cstdint>
18 #include <memory>
19 #include <vector>
20
21 #include "fcp/secagg/shared/map_of_masks.h"
22 #include "fcp/secagg/shared/secagg_vector.h"
23
24 // Open-source version of benchmarking library
25 #include "benchmark/benchmark.h"
26
27 namespace fcp {
28 namespace secagg {
29 namespace {
30
31 // Open-source version of benchmarking library
32 using benchmark::internal::Benchmark;
33
34 // This function produces varied pairs of {bit_width, size} for the benchmark.
CustomArguments(Benchmark * b)35 static void CustomArguments(Benchmark* b) {
36 constexpr int bit_widths[] = {8, 25, 38, 53,
37 absl::bit_width(SecAggVector::kMaxModulus - 1)};
38 for (int bit_width : bit_widths) {
39 for (int size = 32; size <= 32 * 1024 * 1024; size *= 32) {
40 b->ArgPair(bit_width, size);
41 }
42 }
43 }
44
MakeMap(int64_t bit_width,int64_t size,uint64_t start,uint64_t step)45 std::unique_ptr<SecAggVectorMap> MakeMap(int64_t bit_width, int64_t size,
46 uint64_t start, uint64_t step) {
47 std::vector<uint64_t> vec;
48 vec.resize(size);
49
50 uint64_t modulus = 1ULL << bit_width;
51 uint64_t v = start;
52 for (int64_t i = 0; i < size; i++) {
53 vec[i] = v;
54 v = (v + step) % modulus;
55 }
56
57 auto map = std::make_unique<SecAggVectorMap>();
58 map->emplace("test", SecAggVector(vec, modulus));
59 return map;
60 }
61
BM_AddMaps(benchmark::State & state)62 void BM_AddMaps(benchmark::State& state) {
63 auto map_a = MakeMap(state.range(0), state.range(1), 1, 1);
64 auto map_b = MakeMap(state.range(0), state.range(1), 2, 3);
65 for (auto _ : state) {
66 auto map_sum = AddMaps(*map_a, *map_b);
67 benchmark::DoNotOptimize(map_sum);
68 }
69 }
70
71 BENCHMARK(BM_AddMaps)->Apply(CustomArguments);
72
73 } // namespace
74 } // namespace secagg
75 } // namespace fcp
76