diff options
Diffstat (limited to 'libs/binder/tests/binderParcelBenchmark.cpp')
| -rw-r--r-- | libs/binder/tests/binderParcelBenchmark.cpp | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/libs/binder/tests/binderParcelBenchmark.cpp b/libs/binder/tests/binderParcelBenchmark.cpp deleted file mode 100644 index 26c50ebb57..0000000000 --- a/libs/binder/tests/binderParcelBenchmark.cpp +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Copyright (C) 2021 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 <binder/Parcel.h> -#include <benchmark/benchmark.h> - -// Usage: atest binderParcelBenchmark - -// For static assert(false) we need a template version to avoid early failure. -// See: https://stackoverflow.com/questions/51523965/template-dependent-false -template <typename T> -constexpr bool dependent_false_v = false; - -template <template <typename ...> class V, typename T, typename... Args> -void writeVector(android::Parcel &p, const V<T, Args...> &v) { - if constexpr (std::is_same_v<T, bool>) { - p.writeBoolVector(v); - } else if constexpr (std::is_same_v<T, uint8_t>) { - p.writeByteVector(v); - } else if constexpr (std::is_same_v<T, char16_t>) { - p.writeCharVector(v); - } else if constexpr (std::is_same_v<T, int32_t>) { - p.writeInt32Vector(v); - } else if constexpr (std::is_same_v<T, int64_t>) { - p.writeInt64Vector(v); - } else { - static_assert(dependent_false_v<V<T>>); - } -} - -template <template <typename ...> class V, typename T, typename... Args> -void readVector(android::Parcel &p, V<T, Args...> *v) { - if constexpr (std::is_same_v<T, bool>) { - p.readBoolVector(v); - } else if constexpr (std::is_same_v<T, uint8_t>) { - p.readByteVector(v); - } else if constexpr (std::is_same_v<T, char16_t>) { - p.readCharVector(v); - } else if constexpr (std::is_same_v<T, int32_t>) { - p.readInt32Vector(v); - } else if constexpr (std::is_same_v<T, int64_t>) { - p.readInt64Vector(v); - } else { - static_assert(dependent_false_v<V<T>>); - } -} - -// Construct a series of args { 1 << 0, 1 << 1, ..., 1 << 10 } -static void VectorArgs(benchmark::internal::Benchmark* b) { - for (int i = 0; i < 10; ++i) { - b->Args({1 << i}); - } -} - -template <typename T> -static void BM_ParcelVector(benchmark::State& state) { - const size_t elements = state.range(0); - - std::vector<T> v1(elements); - std::vector<T> v2(elements); - android::Parcel p; - while (state.KeepRunning()) { - p.setDataPosition(0); - writeVector(p, v1); - - p.setDataPosition(0); - readVector(p, &v2); - - benchmark::DoNotOptimize(v2[0]); - benchmark::ClobberMemory(); - } - state.SetComplexityN(elements); -} - -/* - Parcel vector write than read. - The read and write vectors are fixed, no resizing required. - - Results on Crosshatch Pixel 3XL - - #BM_BoolVector/1 44 ns 44 ns 15630626 - #BM_BoolVector/2 54 ns 54 ns 12900340 - #BM_BoolVector/4 73 ns 72 ns 9749841 - #BM_BoolVector/8 107 ns 107 ns 6503326 - #BM_BoolVector/16 186 ns 185 ns 3773627 - #BM_BoolVector/32 337 ns 336 ns 2083877 - #BM_BoolVector/64 607 ns 605 ns 1154113 - #BM_BoolVector/128 1155 ns 1151 ns 608128 - #BM_BoolVector/256 2259 ns 2253 ns 310973 - #BM_BoolVector/512 4469 ns 4455 ns 157277 - #BM_ByteVector/1 41 ns 41 ns 16837425 - #BM_ByteVector/2 41 ns 41 ns 16820726 - #BM_ByteVector/4 38 ns 38 ns 18217813 - #BM_ByteVector/8 38 ns 38 ns 18290298 - #BM_ByteVector/16 38 ns 38 ns 18117817 - #BM_ByteVector/32 38 ns 38 ns 18172385 - #BM_ByteVector/64 41 ns 41 ns 16950055 - #BM_ByteVector/128 53 ns 53 ns 13170749 - #BM_ByteVector/256 69 ns 69 ns 10113626 - #BM_ByteVector/512 106 ns 106 ns 6561936 - #BM_CharVector/1 38 ns 38 ns 18074831 - #BM_CharVector/2 40 ns 40 ns 17206266 - #BM_CharVector/4 50 ns 50 ns 13785944 - #BM_CharVector/8 67 ns 67 ns 10223316 - #BM_CharVector/16 96 ns 96 ns 7297285 - #BM_CharVector/32 156 ns 155 ns 4484845 - #BM_CharVector/64 277 ns 276 ns 2536003 - #BM_CharVector/128 520 ns 518 ns 1347070 - #BM_CharVector/256 1006 ns 1003 ns 695952 - #BM_CharVector/512 1976 ns 1970 ns 354673 - #BM_Int32Vector/1 41 ns 41 ns 16951262 - #BM_Int32Vector/2 41 ns 41 ns 16916883 - #BM_Int32Vector/4 41 ns 41 ns 16761373 - #BM_Int32Vector/8 42 ns 42 ns 16553179 - #BM_Int32Vector/16 43 ns 43 ns 16200362 - #BM_Int32Vector/32 55 ns 54 ns 12724454 - #BM_Int32Vector/64 70 ns 69 ns 10049223 - #BM_Int32Vector/128 107 ns 107 ns 6525796 - #BM_Int32Vector/256 179 ns 178 ns 3922563 - #BM_Int32Vector/512 324 ns 323 ns 2160653 - #BM_Int64Vector/1 41 ns 41 ns 16909470 - #BM_Int64Vector/2 41 ns 41 ns 16740788 - #BM_Int64Vector/4 42 ns 42 ns 16564197 - #BM_Int64Vector/8 43 ns 42 ns 16284082 - #BM_Int64Vector/16 54 ns 54 ns 12839474 - #BM_Int64Vector/32 69 ns 69 ns 10011010 - #BM_Int64Vector/64 107 ns 106 ns 6557956 - #BM_Int64Vector/128 177 ns 177 ns 3925618 - #BM_Int64Vector/256 324 ns 323 ns 2163321 - #BM_Int64Vector/512 613 ns 611 ns 1140418 -*/ - -static void BM_BoolVector(benchmark::State& state) { - BM_ParcelVector<bool>(state); -} - -static void BM_ByteVector(benchmark::State& state) { - BM_ParcelVector<uint8_t>(state); -} - -static void BM_CharVector(benchmark::State& state) { - BM_ParcelVector<char16_t>(state); -} - -static void BM_Int32Vector(benchmark::State& state) { - BM_ParcelVector<int32_t>(state); -} - -static void BM_Int64Vector(benchmark::State& state) { - BM_ParcelVector<int64_t>(state); -} - -BENCHMARK(BM_BoolVector)->Apply(VectorArgs); -BENCHMARK(BM_ByteVector)->Apply(VectorArgs); -BENCHMARK(BM_CharVector)->Apply(VectorArgs); -BENCHMARK(BM_Int32Vector)->Apply(VectorArgs); -BENCHMARK(BM_Int64Vector)->Apply(VectorArgs); - -BENCHMARK_MAIN(); |