Christopher Ferris | 08d97ae | 2015-03-14 16:36:37 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | // The functions we want to benchmark are static, so include the source code. |
| 18 | #include "luni/src/main/native/libcore_io_Memory.cpp" |
| 19 | |
| 20 | #include <benchmark/Benchmark.h> |
| 21 | |
| 22 | template<typename T, size_t ALIGN> |
| 23 | void swap_bench(testing::Benchmark* bench, void (*swap_func)(T*, const T*, size_t), |
| 24 | int iters, size_t num_elements) { |
| 25 | T* src; |
| 26 | T* dst; |
| 27 | T* src_elems; |
| 28 | T* dst_elems; |
| 29 | |
| 30 | if (ALIGN) { |
| 31 | src_elems = new T[num_elements + 1]; |
| 32 | dst_elems = new T[num_elements + 1]; |
| 33 | |
| 34 | src = reinterpret_cast<T*>(reinterpret_cast<uintptr_t>(src_elems) + ALIGN); |
| 35 | dst = reinterpret_cast<T*>(reinterpret_cast<uintptr_t>(dst_elems) + ALIGN); |
| 36 | } else { |
| 37 | src_elems = new T[num_elements]; |
| 38 | dst_elems = new T[num_elements]; |
| 39 | |
| 40 | src = src_elems; |
| 41 | dst = dst_elems; |
| 42 | } |
| 43 | |
| 44 | memset(dst, 0, sizeof(T) * num_elements); |
| 45 | memset(src, 0x12, sizeof(T) * num_elements); |
| 46 | |
| 47 | bench->StartBenchmarkTiming(); |
| 48 | |
| 49 | for (int i = 0; i < iters; i++) { |
| 50 | swap_func(src, dst, num_elements); |
| 51 | } |
| 52 | |
| 53 | bench->StopBenchmarkTiming(); |
| 54 | |
| 55 | delete[] src_elems; |
| 56 | delete[] dst_elems; |
| 57 | } |
| 58 | |
| 59 | #define AT_COMMON_VALUES \ |
| 60 | Arg(10)->Arg(100)->Arg(1000)->Arg(1024*10)->Arg(1024*100) |
| 61 | |
| 62 | BENCHMARK_WITH_ARG(BM_libcore_swapShorts_aligned, int)->AT_COMMON_VALUES; |
| 63 | void BM_libcore_swapShorts_aligned::Run(int iters, int num_shorts) { |
| 64 | swap_bench<jshort, 0>(this, swapShorts, iters, num_shorts); |
| 65 | } |
| 66 | |
| 67 | BENCHMARK_WITH_ARG(BM_libcore_swapInts_aligned, int)->AT_COMMON_VALUES; |
| 68 | void BM_libcore_swapInts_aligned::Run(int iters, int num_ints) { |
| 69 | swap_bench<jint, 0>(this, swapInts, iters, num_ints); |
| 70 | } |
| 71 | |
| 72 | BENCHMARK_WITH_ARG(BM_libcore_swapLongs_aligned, int)->AT_COMMON_VALUES; |
| 73 | void BM_libcore_swapLongs_aligned::Run(int iters, int num_longs) { |
| 74 | swap_bench<jlong, 0>(this, swapLongs, iters, num_longs); |
| 75 | } |
| 76 | |
| 77 | BENCHMARK_WITH_ARG(BM_libcore_swapShorts_unaligned1, int)->AT_COMMON_VALUES; |
| 78 | void BM_libcore_swapShorts_unaligned1::Run(int iters, int num_shorts) { |
| 79 | swap_bench<jshort, 1>(this, swapShorts, iters, num_shorts); |
| 80 | } |
| 81 | |
| 82 | BENCHMARK_WITH_ARG(BM_libcore_swapInts_unaligned1, int)->AT_COMMON_VALUES; |
| 83 | void BM_libcore_swapInts_unaligned1::Run(int iters, int num_ints) { |
| 84 | swap_bench<jint, 1>(this, swapInts, iters, num_ints); |
| 85 | } |
| 86 | |
| 87 | BENCHMARK_WITH_ARG(BM_libcore_swapLongs_unaligned1, int)->AT_COMMON_VALUES; |
| 88 | void BM_libcore_swapLongs_unaligned1::Run(int iters, int num_longs) { |
| 89 | swap_bench<jlong, 1>(this, swapLongs, iters, num_longs); |
| 90 | } |
| 91 | |
| 92 | BENCHMARK_WITH_ARG(BM_libcore_swapShorts_unaligned2, int)->AT_COMMON_VALUES; |
| 93 | void BM_libcore_swapShorts_unaligned2::Run(int iters, int num_shorts) { |
| 94 | swap_bench<jshort, 2>(this, swapShorts, iters, num_shorts); |
| 95 | } |
| 96 | |
| 97 | BENCHMARK_WITH_ARG(BM_libcore_swapInts_unaligned2, int)->AT_COMMON_VALUES; |
| 98 | void BM_libcore_swapInts_unaligned2::Run(int iters, int num_ints) { |
| 99 | swap_bench<jint, 2>(this, swapInts, iters, num_ints); |
| 100 | } |
| 101 | |
| 102 | BENCHMARK_WITH_ARG(BM_libcore_swapLongs_unaligned2, int)->AT_COMMON_VALUES; |
| 103 | void BM_libcore_swapLongs_unaligned2::Run(int iters, int num_longs) { |
| 104 | swap_bench<jlong, 2>(this, swapLongs, iters, num_longs); |
| 105 | } |