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 #include <gtest/gtest.h> 18 19 #include <android-base/stringprintf.h> 20 #include <android-base/test_utils.h> 21 22 #include <memory> 23 24 #include "command.h" 25 #include "environment.h" 26 #include "event_selection_set.h" 27 #include "get_test_data.h" 28 #include "record.h" 29 #include "record_file.h" 30 #include "test_util.h" 31 32 using namespace PerfFileFormat; 33 34 static std::unique_ptr<Command> RecordCmd() { 35 return CreateCommandInstance("record"); 36 } 37 38 static bool RunRecordCmd(std::vector<std::string> v, const char* output_file = nullptr) { 39 std::unique_ptr<TemporaryFile> tmpfile; 40 std::string out_file; 41 if (output_file != nullptr) { 42 out_file = output_file; 43 } else { 44 tmpfile.reset(new TemporaryFile); 45 out_file = tmpfile->path; 46 } 47 v.insert(v.end(), {"-o", out_file, "sleep", SLEEP_SEC}); 48 return RecordCmd()->Run(v); 49 } 50 51 TEST(record_cmd, no_options) { 52 ASSERT_TRUE(RunRecordCmd({})); 53 } 54 55 TEST(record_cmd, system_wide_option) { 56 if (IsRoot()) { 57 ASSERT_TRUE(RunRecordCmd({"-a"})); 58 } 59 } 60 61 TEST(record_cmd, sample_period_option) { 62 ASSERT_TRUE(RunRecordCmd({"-c", "100000"})); 63 } 64 65 TEST(record_cmd, event_option) { 66 ASSERT_TRUE(RunRecordCmd({"-e", "cpu-clock"})); 67 } 68 69 TEST(record_cmd, freq_option) { 70 ASSERT_TRUE(RunRecordCmd({"-f", "99"})); 71 ASSERT_TRUE(RunRecordCmd({"-F", "99"})); 72 } 73 74 TEST(record_cmd, output_file_option) { 75 TemporaryFile tmpfile; 76 ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "sleep", SLEEP_SEC})); 77 } 78 79 TEST(record_cmd, dump_kernel_mmap) { 80 TemporaryFile tmpfile; 81 ASSERT_TRUE(RunRecordCmd({}, tmpfile.path)); 82 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path); 83 ASSERT_TRUE(reader != nullptr); 84 std::vector<std::unique_ptr<Record>> records = reader->DataSection(); 85 ASSERT_GT(records.size(), 0U); 86 bool have_kernel_mmap = false; 87 for (auto& record : records) { 88 if (record->header.type == PERF_RECORD_MMAP) { 89 const MmapRecord* mmap_record = static_cast<const MmapRecord*>(record.get()); 90 if (mmap_record->filename == DEFAULT_KERNEL_MMAP_NAME) { 91 have_kernel_mmap = true; 92 break; 93 } 94 } 95 } 96 ASSERT_TRUE(have_kernel_mmap); 97 } 98 99 TEST(record_cmd, dump_build_id_feature) { 100 TemporaryFile tmpfile; 101 ASSERT_TRUE(RunRecordCmd({}, tmpfile.path)); 102 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path); 103 ASSERT_TRUE(reader != nullptr); 104 const FileHeader& file_header = reader->FileHeader(); 105 ASSERT_TRUE(file_header.features[FEAT_BUILD_ID / 8] & (1 << (FEAT_BUILD_ID % 8))); 106 ASSERT_GT(reader->FeatureSectionDescriptors().size(), 0u); 107 } 108 109 TEST(record_cmd, tracepoint_event) { 110 if (IsRoot()) { 111 ASSERT_TRUE(RunRecordCmd({"-a", "-e", "sched:sched_switch"})); 112 } 113 } 114 115 TEST(record_cmd, branch_sampling) { 116 if (IsBranchSamplingSupported()) { 117 ASSERT_TRUE(RunRecordCmd({"-b"})); 118 ASSERT_TRUE(RunRecordCmd({"-j", "any,any_call,any_ret,ind_call"})); 119 ASSERT_TRUE(RunRecordCmd({"-j", "any,k"})); 120 ASSERT_TRUE(RunRecordCmd({"-j", "any,u"})); 121 ASSERT_FALSE(RunRecordCmd({"-j", "u"})); 122 } else { 123 GTEST_LOG_(INFO) 124 << "This test does nothing as branch stack sampling is not supported on this device."; 125 } 126 } 127 128 TEST(record_cmd, event_modifier) { 129 ASSERT_TRUE(RunRecordCmd({"-e", "cpu-cycles:u"})); 130 } 131 132 TEST(record_cmd, fp_callchain_sampling) { 133 ASSERT_TRUE(RunRecordCmd({"--call-graph", "fp"})); 134 } 135 136 TEST(record_cmd, dwarf_callchain_sampling) { 137 if (IsDwarfCallChainSamplingSupported()) { 138 ASSERT_TRUE(RunRecordCmd({"--call-graph", "dwarf"})); 139 ASSERT_TRUE(RunRecordCmd({"--call-graph", "dwarf,16384"})); 140 ASSERT_TRUE(RunRecordCmd({"-g"})); 141 } else { 142 GTEST_LOG_(INFO) 143 << "This test does nothing as dwarf callchain sampling is not supported on this device."; 144 } 145 } 146 147 TEST(record_cmd, no_unwind_option) { 148 if (IsDwarfCallChainSamplingSupported()) { 149 ASSERT_TRUE(RunRecordCmd({"--call-graph", "dwarf", "--no-unwind"})); 150 } else { 151 GTEST_LOG_(INFO) 152 << "This test does nothing as dwarf callchain sampling is not supported on this device."; 153 } 154 ASSERT_FALSE(RunRecordCmd({"--no-unwind"})); 155 } 156 157 TEST(record_cmd, post_unwind_option) { 158 if (IsDwarfCallChainSamplingSupported()) { 159 ASSERT_TRUE(RunRecordCmd({"--call-graph", "dwarf", "--post-unwind"})); 160 } else { 161 GTEST_LOG_(INFO) 162 << "This test does nothing as dwarf callchain sampling is not supported on this device."; 163 } 164 ASSERT_FALSE(RunRecordCmd({"--post-unwind"})); 165 ASSERT_FALSE( 166 RunRecordCmd({"--call-graph", "dwarf", "--no-unwind", "--post-unwind"})); 167 } 168 169 TEST(record_cmd, existing_processes) { 170 std::vector<std::unique_ptr<Workload>> workloads; 171 CreateProcesses(2, &workloads); 172 std::string pid_list = 173 android::base::StringPrintf("%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid()); 174 ASSERT_TRUE(RunRecordCmd({"-p", pid_list})); 175 } 176 177 TEST(record_cmd, existing_threads) { 178 std::vector<std::unique_ptr<Workload>> workloads; 179 CreateProcesses(2, &workloads); 180 // Process id can also be used as thread id in linux. 181 std::string tid_list = 182 android::base::StringPrintf("%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid()); 183 TemporaryFile tmpfile; 184 ASSERT_TRUE(RunRecordCmd({"-t", tid_list})); 185 } 186 187 TEST(record_cmd, no_monitored_threads) { 188 ASSERT_FALSE(RecordCmd()->Run({""})); 189 } 190 191 TEST(record_cmd, more_than_one_event_types) { 192 ASSERT_TRUE(RunRecordCmd({"-e", "cpu-cycles,cpu-clock"})); 193 ASSERT_TRUE(RunRecordCmd({"-e", "cpu-cycles", "-e", "cpu-clock"})); 194 } 195 196 TEST(record_cmd, cpu_option) { 197 ASSERT_TRUE(RunRecordCmd({"--cpu", "0"})); 198 if (IsRoot()) { 199 ASSERT_TRUE(RunRecordCmd({"--cpu", "0", "-a"})); 200 } 201 } 202 203 TEST(record_cmd, mmap_page_option) { 204 ASSERT_TRUE(RunRecordCmd({"-m", "1"})); 205 ASSERT_FALSE(RunRecordCmd({"-m", "0"})); 206 ASSERT_FALSE(RunRecordCmd({"-m", "7"})); 207 } 208
