1 /*
2 * Copyright (C) 2018 The Android Open Source Project
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 * http://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 <android-base/logging.h>
18 #include <android-base/stringprintf.h>
19 #include <benchmark/benchmark.h>
20
21 #include "bpf/BpfMap.h"
22 #include "bpf/BpfUtils.h"
23
24 constexpr uint32_t TEST_MAP_SIZE = 10000;
25
26 using android::base::Result;
27 using android::base::StringPrintf;
28 using android::bpf::BpfMap;
29
30 class BpfBenchMark : public ::benchmark::Fixture {
31 public:
BpfBenchMark()32 BpfBenchMark() : mBpfTestMap(BPF_MAP_TYPE_HASH, TEST_MAP_SIZE, BPF_F_NO_PREALLOC) {}
33 BpfMap<uint32_t, uint32_t> mBpfTestMap;
34 };
35
BENCHMARK_DEFINE_F(BpfBenchMark,MapWriteNewEntry)36 BENCHMARK_DEFINE_F(BpfBenchMark, MapWriteNewEntry)(benchmark::State& state) {
37 for (auto _ : state) { // NOLINT(clang-analyzer-deadcode.DeadStores)
38 // TODO(b/147676069) assert
39 mBpfTestMap.writeValue(state.range(0), state.range(0), BPF_NOEXIST);
40 }
41 }
42
BENCHMARK_DEFINE_F(BpfBenchMark,MapUpdateEntry)43 BENCHMARK_DEFINE_F(BpfBenchMark, MapUpdateEntry)(benchmark::State& state) {
44 for (uint32_t i = 0; i < TEST_MAP_SIZE; i++) {
45 // TODO(b/147676069) assert
46 mBpfTestMap.writeValue(i, i, BPF_NOEXIST);
47 }
48 for (auto _ : state) { // NOLINT(clang-analyzer-deadcode.DeadStores)
49 // TODO(b/147676069) assert
50 mBpfTestMap.writeValue(state.range(0), state.range(0) + 1, BPF_EXIST);
51 }
52 }
53
BENCHMARK_DEFINE_F(BpfBenchMark,MapDeleteAddEntry)54 BENCHMARK_DEFINE_F(BpfBenchMark, MapDeleteAddEntry)(benchmark::State& state) {
55 for (uint32_t i = 0; i < TEST_MAP_SIZE; i++) {
56 // TODO(b/147676069) assert
57 mBpfTestMap.writeValue(i, i, BPF_NOEXIST);
58 }
59 for (auto _ : state) { // NOLINT(clang-analyzer-deadcode.DeadStores)
60 // TODO(b/147676069) assert
61 mBpfTestMap.deleteValue(state.range(0));
62 // TODO(b/147676069) assert
63 mBpfTestMap.writeValue(state.range(0), state.range(0) + 1, BPF_NOEXIST);
64 }
65 }
66
BENCHMARK_DEFINE_F(BpfBenchMark,WaitForRcu)67 BENCHMARK_DEFINE_F(BpfBenchMark, WaitForRcu)(benchmark::State& state) {
68 for (auto _ : state) { // NOLINT(clang-analyzer-deadcode.DeadStores)
69 int ret = android::bpf::synchronizeKernelRCU();
70 if (ret) {
71 state.SkipWithError(
72 StringPrintf("synchronizeKernelRCU() failed with errno=%d", -ret).c_str());
73 }
74 }
75 }
76
77 BENCHMARK_REGISTER_F(BpfBenchMark, MapUpdateEntry)->Arg(1);
78 BENCHMARK_REGISTER_F(BpfBenchMark, MapWriteNewEntry)->Arg(1);
79 BENCHMARK_REGISTER_F(BpfBenchMark, MapDeleteAddEntry)->Arg(1);
80 BENCHMARK_REGISTER_F(BpfBenchMark, WaitForRcu)->Arg(1);
81 BENCHMARK_MAIN();
82