| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <android-base/stringprintf.h> |
| #include <benchmark/benchmark.h> |
| |
| #include "bpf/BpfMap.h" |
| #include "bpf/BpfUtils.h" |
| |
| constexpr uint32_t TEST_MAP_SIZE = 10000; |
| |
| using android::base::StringPrintf; |
| using android::bpf::BpfMap; |
| |
| class BpfBenchMark : public ::benchmark::Fixture { |
| public: |
| BpfBenchMark() : mBpfTestMap(BPF_MAP_TYPE_HASH, TEST_MAP_SIZE, BPF_F_NO_PREALLOC) {} |
| BpfMap<uint32_t, uint32_t> mBpfTestMap; |
| }; |
| |
| BENCHMARK_DEFINE_F(BpfBenchMark, MapWriteNewEntry)(benchmark::State& state) { |
| for (auto _ : state) { |
| expectOk(mBpfTestMap.writeValue(state.range(0), state.range(0), BPF_NOEXIST)); |
| } |
| } |
| |
| BENCHMARK_DEFINE_F(BpfBenchMark, MapUpdateEntry)(benchmark::State& state) { |
| for (uint32_t i = 0; i < TEST_MAP_SIZE; i++) { |
| expectOk(mBpfTestMap.writeValue(i, i, BPF_NOEXIST)); |
| } |
| for (auto _ : state) { |
| expectOk(mBpfTestMap.writeValue(state.range(0), state.range(0) + 1, BPF_EXIST)); |
| } |
| } |
| |
| BENCHMARK_DEFINE_F(BpfBenchMark, MapDeleteAddEntry)(benchmark::State& state) { |
| for (uint32_t i = 0; i < TEST_MAP_SIZE; i++) { |
| expectOk(mBpfTestMap.writeValue(i, i, BPF_NOEXIST)); |
| } |
| for (auto _ : state) { |
| expectOk(mBpfTestMap.deleteValue(state.range(0))); |
| expectOk(mBpfTestMap.writeValue(state.range(0), state.range(0) + 1, BPF_NOEXIST)); |
| } |
| } |
| |
| BENCHMARK_DEFINE_F(BpfBenchMark, WaitForRcu)(benchmark::State& state) { |
| for (auto _ : state) { |
| int ret = android::bpf::synchronizeKernelRCU(); |
| if (ret) { |
| state.SkipWithError( |
| StringPrintf("synchronizeKernelRCU() failed with errno=%d", -ret).c_str()); |
| } |
| } |
| } |
| |
| BENCHMARK_REGISTER_F(BpfBenchMark, MapUpdateEntry)->Arg(1); |
| BENCHMARK_REGISTER_F(BpfBenchMark, MapWriteNewEntry)->Arg(1); |
| BENCHMARK_REGISTER_F(BpfBenchMark, MapDeleteAddEntry)->Arg(1); |
| BENCHMARK_REGISTER_F(BpfBenchMark, WaitForRcu)->Arg(1); |
| BENCHMARK_MAIN(); |