1 /* 2 * Copyright (C) 2017 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 <stdio.h> 18 19 #include <android-base/file.h> 20 #include <benchmark/benchmark.h> 21 #include <log/logcat.h> 22 23 // Dump the statistics and report results 24 25 static void logcat_popen_libc(benchmark::State& state, const char* cmd) { 26 while (state.KeepRunning()) { 27 FILE* fp = popen(cmd, "r"); 28 std::string ret; 29 android::base::ReadFdToString(fileno(fp), &ret); 30 pclose(fp); 31 } 32 } 33 34 static void BM_logcat_stat_popen_libc(benchmark::State& state) { 35 logcat_popen_libc(state, "logcat -b all -S"); 36 } 37 BENCHMARK(BM_logcat_stat_popen_libc); 38 39 static void logcat_popen_liblogcat(benchmark::State& state, const char* cmd) { 40 while (state.KeepRunning()) { 41 android_logcat_context ctx; 42 FILE* fp = android_logcat_popen(&ctx, cmd); 43 std::string ret; 44 android::base::ReadFdToString(fileno(fp), &ret); 45 android_logcat_pclose(&ctx, fp); 46 } 47 } 48 49 static void BM_logcat_stat_popen_liblogcat(benchmark::State& state) { 50 logcat_popen_liblogcat(state, "logcat -b all -S"); 51 } 52 BENCHMARK(BM_logcat_stat_popen_liblogcat); 53 54 static void logcat_system_libc(benchmark::State& state, const char* cmd) { 55 while (state.KeepRunning()) { 56 system(cmd); 57 } 58 } 59 60 static void BM_logcat_stat_system_libc(benchmark::State& state) { 61 logcat_system_libc(state, "logcat -b all -S >/dev/null 2>/dev/null"); 62 } 63 BENCHMARK(BM_logcat_stat_system_libc); 64 65 static void logcat_system_liblogcat(benchmark::State& state, const char* cmd) { 66 while (state.KeepRunning()) { 67 android_logcat_system(cmd); 68 } 69 } 70 71 static void BM_logcat_stat_system_liblogcat(benchmark::State& state) { 72 logcat_system_liblogcat(state, "logcat -b all -S >/dev/null 2>/dev/null"); 73 } 74 BENCHMARK(BM_logcat_stat_system_liblogcat); 75 76 // Dump the logs and report results 77 78 static void BM_logcat_dump_popen_libc(benchmark::State& state) { 79 logcat_popen_libc(state, "logcat -b all -d"); 80 } 81 BENCHMARK(BM_logcat_dump_popen_libc); 82 83 static void BM_logcat_dump_popen_liblogcat(benchmark::State& state) { 84 logcat_popen_liblogcat(state, "logcat -b all -d"); 85 } 86 BENCHMARK(BM_logcat_dump_popen_liblogcat); 87 88 static void BM_logcat_dump_system_libc(benchmark::State& state) { 89 logcat_system_libc(state, "logcat -b all -d >/dev/null 2>/dev/null"); 90 } 91 BENCHMARK(BM_logcat_dump_system_libc); 92 93 static void BM_logcat_dump_system_liblogcat(benchmark::State& state) { 94 logcat_system_liblogcat(state, "logcat -b all -d >/dev/null 2>/dev/null"); 95 } 96 BENCHMARK(BM_logcat_dump_system_liblogcat); 97
