1b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes/* 2b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * Copyright (C) 2014 The Android Open Source Project 3b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * 4b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 5b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * you may not use this file except in compliance with the License. 6b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * You may obtain a copy of the License at 7b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * 8b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 9b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * 10b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * Unless required by applicable law or agreed to in writing, software 11b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 12b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * See the License for the specific language governing permissions and 14b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes * limitations under the License. 15b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes */ 16b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 17b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes#include "benchmark.h" 18b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 19b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes#include <stdio.h> 20b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 21b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes#define KB 1024 22b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes#define MB 1024*KB 23b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 24b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes#define AT_COMMON_SIZES \ 25b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes Arg(1)->Arg(2)->Arg(3)->Arg(4)->Arg(8)->Arg(16)->Arg(32)->Arg(64)->Arg(512)-> \ 26b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes Arg(1*KB)->Arg(4*KB)->Arg(8*KB)->Arg(16*KB)->Arg(64*KB) 27b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 28b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughesstatic void BM_stdio_fread(int iters, int chunk_size) { 29b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes StopBenchmarkTiming(); 30b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes FILE* fp = fopen("/dev/zero", "rw"); 31b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes char* buf = new char[chunk_size]; 32b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes StartBenchmarkTiming(); 33b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 34b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes for (int i = 0; i < iters; ++i) { 35b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes fread(buf, chunk_size, 1, fp); 36b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes } 37b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 38b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes StopBenchmarkTiming(); 39b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(chunk_size)); 40b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes delete[] buf; 41b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes fclose(fp); 42b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes} 43b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott HughesBENCHMARK(BM_stdio_fread)->AT_COMMON_SIZES; 44b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 45b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 46b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughesstatic void BM_stdio_fwrite(int iters, int chunk_size) { 47b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes StopBenchmarkTiming(); 48b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes FILE* fp = fopen("/dev/zero", "rw"); 49b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes char* buf = new char[chunk_size]; 50b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes StartBenchmarkTiming(); 51b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 52b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes for (int i = 0; i < iters; ++i) { 53b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes fwrite(buf, chunk_size, 1, fp); 54b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes } 55b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes 56b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes StopBenchmarkTiming(); 57b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes SetBenchmarkBytesProcessed(int64_t(iters) * int64_t(chunk_size)); 58b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes delete[] buf; 59b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes fclose(fp); 60b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott Hughes} 61b28e490b7350b21c5ae9e5b3bb3e082d8357a1b0Elliott HughesBENCHMARK(BM_stdio_fwrite)->AT_COMMON_SIZES; 62