1 /* 2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef SUBCOMMAND_RECORD_H 16 #define SUBCOMMAND_RECORD_H 17 18 // some debug feaure 19 #define HIDEBUG_RECORD_NOT_PROCESS 0 20 #define HIDEBUG_RECORD_NOT_PROCESS_VM 0 21 #define HIDEBUG_RECORD_NOT_SAVE 0 22 #define HIDEBUG_SKIP_PROCESS_SYMBOLS 0 23 #define HIDEBUG_SKIP_MATCH_SYMBOLS 0 24 #define HIDEBUG_SKIP_LOAD_KERNEL_SYMBOLS 0 25 #define HIDEBUG_SKIP_SAVE_SYMBOLS 0 26 #define USE_COLLECT_SYMBOLIC 1 27 28 #include <functional> 29 #include <thread> 30 #include <unordered_map> 31 #include <unordered_set> 32 #include <chrono> 33 #include "perf_event_record.h" 34 #include "perf_events.h" 35 #include "perf_file_writer.h" 36 #include "subcommand.h" 37 #include "virtual_runtime.h" 38 39 namespace OHOS { 40 namespace Developtools { 41 namespace HiPerf { 42 class SubCommandRecord : public SubCommand { 43 public: 44 static constexpr int DEFAULT_CPU_PERCENT = 25; 45 static constexpr int MIN_CPU_PERCENT = 1; 46 static constexpr int MAX_CPU_PERCENT = 100; 47 static constexpr int MIN_SAMPLE_FREQUENCY = 1; 48 static constexpr int MAX_SAMPLE_FREQUENCY = 100000; 49 static constexpr int DEFAULT_MMAP_PAGES = 256; 50 static constexpr int MIN_PERF_MMAP_PAGE = 2; 51 static constexpr int MAX_PERF_MMAP_PAGE = 1024; 52 static constexpr int DEFAULT_CHECK_APP_MS = 10; 53 static constexpr int MIN_CHECK_APP_MS = 1; 54 static constexpr int MAX_CHECK_APP_MS = 200; 55 static constexpr float MIN_STOP_SECONDS = 0.100; 56 static constexpr float MAX_STOP_SECONDS = 10000.0; 57 static constexpr int MIN_SAVED_CMDLINES_SIZE = 512; 58 static constexpr int DEFAULT_SAVED_CMDLINES_SIZE = 2048; 59 static constexpr int MAX_SAVED_CMDLINES_SIZE = 4096; 60 SubCommandRecord()61 SubCommandRecord() 62 // clang-format off 63 : SubCommand("record", "Collect performance sample information", 64 "Usage: hiperf record [options] [command [command-args]]\n" 65 " Collect performance sampling information of running [command].\n" 66 " The default options are: -c <all cpu> --cpu-limit 25 -d 10000.0 -e hw-cpu-cycles\n" 67 " -f 4000 -m 1024 -o /data/local/tmp/perf.data.\n" 68 " -a\n" 69 " Collect system-wide information.\n" 70 " for measures all processes/threads\n" 71 " This requires CAP_PERFMON (since Linux 5.8) or CAP_SYS_ADMIN capability or a\n" 72 " /proc/sys/kernel/perf_event_paranoid value of less than 1.\n" 73 " --exclude-hiperf\n" 74 " Don't record events issued by hiperf itself.\n" 75 " -c <cpuid>[<,cpuid>]...\n" 76 " cpuid should be 0,1,2...\n" 77 " Limit the CPU that collects data.\n" 78 " 0 means cpu0, 1 means cpu1 ...\n" 79 " --cpu-limit <percent>\n" 80 " Set the max percent of cpu time used for recording.\n" 81 " percent is in range [1-100], default is 25.\n" 82 " -d <sec>\n" 83 " stop in <sec> seconds. floating point number. seconds is in range [0.100-10000.0]\n" 84 " default is 10000.0\n" 85 " -f <freq>\n" 86 " Set event sampling frequency. default is 4000 samples every second.\n" 87 " check /proc/sys/kernel/perf_event_max_sample_rate for maximum allowed frequency\n" 88 " --period <num>\n" 89 " Set event sampling period for tracepoint events. recording one sample when <num> events happen.\n" 90 " The default <num> is 1\n" 91 " -e <event1[:<u|k>]>[,event1[:<u|k>]]...\n" 92 " Customize the name of the event that needs to be sampled.\n" 93 " The name can use the names listed in the list parameter.\n" 94 " It can also be represented by the value of 0x<hex>.\n" 95 " u - monitor user space events only\n" 96 " k - monitor kernel space events only\n" 97 " -g <event1[:<u|k>]>[,event1[:<u|k>]]...\n" 98 " Put the events into a group, can set multiple groups by multiple -g\n" 99 " PMU is required to report data in designated groups\n" 100 " limited by HW capability, too many events cannot be reported in the same sampling)\n" 101 " --no-inherit\n" 102 " Don't trace child processes.\n" 103 " -p <pid1>[,pid2]...\n" 104 " Limit the process id of the collection target. Conflicts with the -a option.\n" 105 " -t <tid1>[,tid2]...\n" 106 " Limit the thread id of the collection target. Conflicts with the -a option.\n" 107 " --exclude-tid <tid1>[,tid2]...\n" 108 " Exclude threads of the collection target by thread ids. Conflicts with the -a option.\n" 109 " --exclude-thread <tname1>[,tname2]...\n" 110 " Exclude threads of the collection target by thread names. Conflicts with the -a option.\n" 111 " --offcpu\n" 112 " Trace when threads are scheduled off cpu.\n" 113 " -j <branch_filter1>[,branch_filter2]...\n" 114 " taken branch stack sampling, filter can be:\n" 115 " any: any type of branch\n" 116 " any_call: any function call or system call\n" 117 " any_ret: any function return or system call return\n" 118 " ind_call: any indirect branch\n" 119 " call: direct calls, including far (to/from kernel) calls\n" 120 " u: only when the branch target is at the user level\n" 121 " k: only when the branch target is in the kernel\n" 122 " requires at least one of any, any_call, any_ret, ind_call\n" 123 " -s / --call-stack <fp|dwarf[,size]>\n" 124 " Setup and enable call stack (stack chain/backtrace) recording, Default is 'fp'.\n" 125 " the value can be:\n" 126 " fp: frame pointer\n" 127 " dwarf: DWARF's CFI - Call Frame Information\n" 128 " 'dwarf,size' set sample stack size, size should be in 8~65528 and 8 byte aligned. \n" 129 " as the method to collect the information used to show the call stacks.\n" 130 " --kernel-callchain\n" 131 " collect kernel callchain, must used with -s fp/dwarf simultaneously.\n" 132 " --callchain-useronly\n" 133 " collect only user callchain.\n" 134 " --delay-unwind\n" 135 " If '-s dwarf' used, stack will be unwind while recording, use this option to switch\n" 136 " to unwind after recording.\n" 137 " --disable-unwind\n" 138 " If '-s dwarf' is used, stack will be unwind while recording by default\n" 139 " use this option to disable unwinding.\n" 140 " --disable-callstack-expand\n" 141 " If '-s dwarf' is used, to break the 64k stack limit, callstack is merged by default\n" 142 " to build more complete call stack. that may not be correct sometimes.\n" 143 " --enable-debuginfo-symbolic\n" 144 " If '-s fp/dwarf' is used, symbols in .gnu_debugdata section of an elf, also called minidebuginfo\n" 145 " will be parsed, if not use this option, we will not parse minidebuginfo by default.\n" 146 " --clockid <clock_id>\n" 147 " Set the clock id to use for the various time fields in the perf_event_type records.\n" 148 " monotonic and monotonic_raw are supported,\n" 149 " some events might also allow boottime, realtime and clock_tai.\n" 150 " --symbol-dir <dir>\n" 151 " Set directory to look for symbol files, used for unwinding. \n" 152 " -m <mmap_pages>\n" 153 " Number of the mmap pages, used to receiving record data from kernel,\n" 154 " must be a power of two, rang[2,1024], default is 1024.\n" 155 " --app <package_name>\n" 156 " Collect profile info for an OHOS app, the app must be debuggable.\n" 157 " Record will exit if the process is not started within 10 seconds.\n" 158 " --chkms <millisec>\n" 159 " Set the interval of querying the <package_name>.\n" 160 " <millisec> is in range [1-200], default is 10.\n" 161 " --data-limit <SIZE[K|M|G]>\n" 162 " Stop recording after SIZE bytes of records. Default is unlimited.\n" 163 " -o <output_file_name>\n" 164 " Set output file name, default is /data/local/tmp/perf.data.\n" 165 " -z\n" 166 " Compress record data.\n" 167 " --restart\n" 168 " Collect performance counter information of application startup.\n" 169 " Record will exit if the process is not started within 30 seconds.\n" 170 " --verbose\n" 171 " Show more detailed reports.\n" 172 " --control <command>\n" 173 " Control sampling by <command>, the <command> can be:\n" 174 " prepare: set arguments and prepare sampling\n" 175 " start: start sampling\n" 176 " pause: pause sampling\n" 177 " resume: resume sampling\n" 178 " stop: stop sampling\n" 179 " --dedup_stack\n" 180 " Remove duplicated stacks in perf record, conflicts with -a, only restrain using with -p\n" 181 " --cmdline-size <size>\n" 182 " set value to /sys/kernel/tracing/saved_cmdlines_size\n" 183 " the value should be between 512 and 4096\n" 184 " --report\n" 185 " Report with callstack after record. Conflicts with the -a option.\n" 186 ) 187 // clang-format on 188 { 189 } 190 191 ~SubCommandRecord(); 192 bool OnSubCommand(std::vector<std::string> &args) override; 193 bool ParseOption(std::vector<std::string> &args) override; 194 void DumpOptions(void) const override; 195 196 static bool RegisterSubCommandRecord(void); 197 198 private: 199 PerfEvents perfEvents_; 200 201 bool targetSystemWide_ = false; 202 bool compressData_ = false; 203 bool noInherit_ = false; 204 bool excludeHiperf_ = false; 205 bool offCPU_ = false; 206 bool delayUnwind_ = false; 207 bool disableUnwind_ = false; 208 bool disableCallstackExpend_ = false; 209 bool enableDebugInfoSymbolic_ = false; 210 bool verboseReport_ = false; 211 bool kernelCallChain_ = true; 212 bool callChainUserOnly_ = false; 213 bool report_ = false; 214 float timeStopSec_ = PerfEvents::DEFAULT_TIMEOUT; 215 int frequency_ = 0; 216 int period_ = 0; 217 int cpuPercent_ = DEFAULT_CPU_PERCENT; 218 int mmapPages_ = MAX_PERF_MMAP_PAGE; 219 int cmdlinesSize_ = DEFAULT_SAVED_CMDLINES_SIZE; 220 int oldCmdlinesSize_ = 0; 221 std::vector<std::string> symbolDir_ = {}; 222 std::string outputFilename_ = "/data/local/tmp/perf.data"; 223 std::string appPackage_ = {}; 224 int checkAppMs_ = DEFAULT_CHECK_APP_MS; 225 std::string clockId_ = {}; 226 std::string strLimit_ = {}; 227 std::vector<pid_t> selectCpus_ = {}; 228 std::vector<pid_t> selectPids_ = {}; 229 std::vector<pid_t> selectTids_ = {}; 230 std::vector<pid_t> excludeTids_ = {}; 231 bool restart_ = false; 232 std::vector<std::string> selectEvents_ = {}; 233 std::vector<std::vector<std::string>> selectGroups_ = {}; 234 std::vector<std::string> callStackType_ = {}; 235 std::vector<std::string> vecBranchFilters_ = {}; 236 std::vector<std::string> trackedCommand_ = {}; 237 std::vector<std::string> excludeThreadNames_ = {}; 238 239 bool GetOptions(std::vector<std::string> &args); 240 bool CheckArgsRange(); 241 bool CheckOptions(); 242 bool CheckDataLimitOption(); 243 bool CheckSelectCpuPidOption(); 244 bool GetOptionFrequencyAndPeriod(std::vector<std::string> &args); 245 246 bool isCallStackDwarf_ = false; 247 bool isCallStackFp_ = false; 248 uint32_t callStackDwarfSize_ = MAX_SAMPLE_STACK_SIZE; 249 uint64_t branchSampleType_ = 0; 250 uint64_t dataSizeLimit_ = 0; 251 bool isDataSizeLimitStop_ = false; 252 253 std::unique_ptr<PerfFileWriter> fileWriter_ = nullptr; 254 255 // for client 256 int clientPipeInput_ = -1; 257 int clientPipeOutput_ = -1; 258 int nullFd_ = -1; 259 std::thread clientCommandHanle_; 260 bool clientExit_ = false; 261 void ClientCommandHandle(); 262 bool ClientCommandResponse(bool OK); 263 bool IsSamplingRunning(); 264 // for cmdline client 265 std::string controlCmd_ = {}; 266 bool isFifoServer_ = false; 267 bool isFifoClient_ = false; 268 bool dedupStack_ = false; 269 std::map<pid_t, std::vector<pid_t>> mapPids_; 270 bool ProcessControl(); 271 bool CreateFifoServer(); 272 bool SendFifoAndWaitReply(const std::string &cmd, const std::chrono::milliseconds &timeOut); 273 bool WaitFifoReply(int fd, const std::chrono::milliseconds &timeOut); 274 void CloseClientThread(); 275 276 bool PreparePerfEvent(); 277 bool PrepareSysKernel(); 278 bool PrepareVirtualRuntime(); 279 280 size_t recordSamples_ = 0; 281 size_t recordNoSamples_ = 0; 282 283 bool isNeedSetPerfHarden_ = false; 284 285 // callback to process record 286 bool ProcessRecord(std::unique_ptr<PerfEventRecord>); 287 bool SaveRecord(std::unique_ptr<PerfEventRecord>, bool ptrReleaseFlag = false); 288 289 // file format like as 0,1-3,4-6,7,8 290 uint32_t GetCountFromFile(const std::string &fileName); 291 std::string GetCpuDescFromFile(); 292 bool AddCpuFeature(); 293 void AddMemTotalFeature(); 294 void AddEventDescFeature(); 295 void AddRecordTimeFeature(); 296 void AddWorkloadCmdFeature(); 297 void AddCommandLineFeature(); 298 void AddCpuOffFeature(); 299 void AddDevhostFeature(); 300 bool AddFeatureRecordFile(); 301 302 bool CreateInitRecordFile(bool compressData = false); 303 bool FinishWriteRecordFile(); 304 bool PostProcessRecordFile(); 305 bool RecordCompleted(); 306 #ifdef HIPERF_DEBUG_TIME 307 void ReportTime(); 308 #endif 309 310 bool CollectionSymbol(std::unique_ptr<PerfEventRecord> record); 311 void CollectSymbol(PerfRecordSample *sample); 312 bool SetPerfLimit(const std::string& file, int value, std::function<bool (int, int)> const& cmd, 313 const std::string& param); 314 bool SetPerfCpuMaxPercent(); 315 bool SetPerfMaxSampleRate(); 316 bool SetPerfEventMlock(); 317 bool SetPerfHarden(); 318 319 bool TraceOffCpu(); 320 bool ParseCallStackOption(const std::vector<std::string> &callStackType); 321 bool ParseDataLimitOption(const std::string &str); 322 bool ParseBranchSampleType(const std::vector<std::string> &vecBranchSampleTypes); 323 bool ParseControlCmd(const std::string cmd); 324 bool CheckTargetProcessOptions(); 325 bool CheckTargetPids(); 326 bool CheckReportOption(); 327 void WriteCommEventBeforeSampling(); 328 329 VirtualRuntime virtualRuntime_; 330 #if USE_COLLECT_SYMBOLIC 331 std::unordered_map<pid_t, std::unordered_set<uint64_t>> kernelThreadSymbolsHits_; 332 kSymbolsHits kernelSymbolsHits_; 333 uSymbolsHits userSymbolsHits_; 334 void SymbolicHits(); 335 #endif 336 337 #ifdef HIPERF_DEBUG_TIME 338 std::chrono::microseconds prcessRecordTimes_ = std::chrono::microseconds::zero(); 339 std::chrono::microseconds saveRecordTimes_ = std::chrono::microseconds::zero(); 340 std::chrono::microseconds saveFeatureTimes_ = std::chrono::microseconds::zero(); 341 #endif 342 std::chrono::time_point<std::chrono::steady_clock> startSaveFileTimes_; 343 344 void SetHM(); 345 void SetSavedCmdlinesSize(); 346 void RecoverSavedCmdlinesSize(); 347 bool OnlineReportData(); 348 }; 349 } // namespace HiPerf 350 } // namespace Developtools 351 } // namespace OHOS 352 #endif // SUBCOMMAND_RECORD_H 353