1 /* 2 * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "jvm.h" 27 #include "classfile/classLoaderStats.hpp" 28 #include "classfile/javaClasses.hpp" 29 #include "code/codeCache.hpp" 30 #include "compiler/compileBroker.hpp" 31 #include "gc/g1/g1HeapRegionEventSender.hpp" 32 #include "gc/shared/gcConfiguration.hpp" 33 #include "gc/shared/gcTrace.hpp" 34 #include "gc/shared/objectCountEventSender.hpp" 35 #include "gc/shared/vmGCOperations.hpp" 36 #include "jfr/jfrEvents.hpp" 37 #include "jfr/periodic/jfrModuleEvent.hpp" 38 #include "jfr/periodic/jfrOSInterface.hpp" 39 #include "jfr/periodic/jfrThreadCPULoadEvent.hpp" 40 #include "jfr/periodic/jfrThreadDumpEvent.hpp" 41 #include "jfr/periodic/jfrNetworkUtilization.hpp" 42 #include "jfr/recorder/jfrRecorder.hpp" 43 #include "jfr/support/jfrThreadId.hpp" 44 #include "jfr/utilities/jfrTime.hpp" 45 #include "jfrfiles/jfrPeriodic.hpp" 46 #include "logging/log.hpp" 47 #include "memory/heapInspection.hpp" 48 #include "memory/resourceArea.hpp" 49 #include "oops/oop.inline.hpp" 50 #include "runtime/arguments.hpp" 51 #include "runtime/flags/jvmFlag.hpp" 52 #include "runtime/globals.hpp" 53 #include "runtime/os.hpp" 54 #include "runtime/os_perf.hpp" 55 #include "runtime/thread.inline.hpp" 56 #include "runtime/threadSMR.hpp" 57 #include "runtime/sweeper.hpp" 58 #include "runtime/vmThread.hpp" 59 #include "services/classLoadingService.hpp" 60 #include "services/management.hpp" 61 #include "services/threadService.hpp" 62 #include "utilities/exceptions.hpp" 63 #include "utilities/globalDefinitions.hpp" 64 65 /** 66 * JfrPeriodic class 67 * Implementation of declarations in 68 * xsl generated traceRequestables.hpp 69 */ 70 #define TRACE_REQUEST_FUNC(id) void JfrPeriodicEventSet::request##id(void) 71 72 TRACE_REQUEST_FUNC(JVMInformation) { 73 ResourceMark rm; 74 EventJVMInformation event; 75 event.set_jvmName(VM_Version::vm_name()); 76 event.set_jvmVersion(VM_Version::internal_vm_info_string()); 77 event.set_javaArguments(Arguments::java_command()); 78 event.set_jvmArguments(Arguments::jvm_args()); 79 event.set_jvmFlags(Arguments::jvm_flags()); 80 event.set_jvmStartTime(Management::vm_init_done_time()); 81 event.commit(); 82 } 83 84 TRACE_REQUEST_FUNC(OSInformation) { 85 ResourceMark rm; 86 char* os_name = NEW_RESOURCE_ARRAY(char, 2048); 87 JfrOSInterface::os_version(&os_name); 88 EventOSInformation event; 89 event.set_osVersion(os_name); 90 event.commit(); 91 } 92 93 TRACE_REQUEST_FUNC(ModuleRequire) { 94 JfrModuleEvent::generate_module_dependency_events(); 95 } 96 97 TRACE_REQUEST_FUNC(ModuleExport) { 98 JfrModuleEvent::generate_module_export_events(); 99 } 100 101 /* 102 * This is left empty on purpose, having ExecutionSample as a requestable 103 * is a way of getting the period. The period is passed to ThreadSampling::update_period. 104 * Implementation in jfrSamples.cpp 105 */ 106 TRACE_REQUEST_FUNC(ExecutionSample) { 107 } 108 TRACE_REQUEST_FUNC(NativeMethodSample) { 109 } 110 111 TRACE_REQUEST_FUNC(ThreadDump) { 112 ResourceMark rm; 113 EventThreadDump event; 114 event.set_result(JfrDcmdEvent::thread_dump()); 115 event.commit(); 116 } 117 118 static int _native_library_callback(const char* name, address base, address top, void *param) { 119 EventNativeLibrary event(UNTIMED); 120 event.set_name(name); 121 event.set_baseAddress((u8)base); 122 event.set_topAddress((u8)top); 123 event.set_endtime(*(JfrTicks*) param); 124 event.commit(); 125 return 0; 126 } 127 128 TRACE_REQUEST_FUNC(NativeLibrary) { 129 JfrTicks ts= JfrTicks::now(); 130 os::get_loaded_modules_info(&_native_library_callback, (void *)&ts); 131 } 132 133 TRACE_REQUEST_FUNC(InitialEnvironmentVariable) { 134 JfrOSInterface::generate_initial_environment_variable_events(); 135 } 136 137 TRACE_REQUEST_FUNC(CPUInformation) { 138 CPUInformation cpu_info; 139 int ret_val = JfrOSInterface::cpu_information(cpu_info); 140 if (ret_val == OS_ERR) { 141 log_debug(jfr, system)( "Unable to generate requestable event CPUInformation"); 142 return; 143 } 144 if (ret_val == FUNCTIONALITY_NOT_IMPLEMENTED) { 145 return; 146 } 147 if (ret_val == OS_OK) { 148 EventCPUInformation event; 149 event.set_cpu(cpu_info.cpu_name()); 150 event.set_description(cpu_info.cpu_description()); 151 event.set_sockets(cpu_info.number_of_sockets()); 152 event.set_cores(cpu_info.number_of_cores()); 153 event.set_hwThreads(cpu_info.number_of_hardware_threads()); 154 event.commit(); 155 } 156 } 157 158 TRACE_REQUEST_FUNC(CPULoad) { 159 double u = 0; // user time 160 double s = 0; // kernel time 161 double t = 0; // total time 162 int ret_val = JfrOSInterface::cpu_loads_process(&u, &s, &t); 163 if (ret_val == OS_ERR) { 164 log_debug(jfr, system)( "Unable to generate requestable event CPULoad"); 165 return; 166 } 167 if (ret_val == OS_OK) { 168 EventCPULoad event; 169 event.set_jvmUser((float)u); 170 event.set_jvmSystem((float)s); 171 event.set_machineTotal((float)t); 172 event.commit(); 173 } 174 } 175 176 TRACE_REQUEST_FUNC(ThreadCPULoad) { 177 JfrThreadCPULoadEvent::send_events(); 178 } 179 180 TRACE_REQUEST_FUNC(NetworkUtilization) { 181 JfrNetworkUtilization::send_events(); 182 } 183 184 TRACE_REQUEST_FUNC(CPUTimeStampCounter) { 185 EventCPUTimeStampCounter event; 186 event.set_fastTimeEnabled(JfrTime::is_ft_enabled()); 187 event.set_fastTimeAutoEnabled(JfrTime::is_ft_supported()); 188 event.set_osFrequency(os::elapsed_frequency()); 189 event.set_fastTimeFrequency(JfrTime::frequency()); 190 event.commit(); 191 } 192 193 TRACE_REQUEST_FUNC(SystemProcess) { 194 char pid_buf[16]; 195 SystemProcess* processes = NULL; 196 int num_of_processes = 0; 197 JfrTicks start_time = JfrTicks::now(); 198 int ret_val = JfrOSInterface::system_processes(&processes, &num_of_processes); 199 if (ret_val == OS_ERR) { 200 log_debug(jfr, system)( "Unable to generate requestable event SystemProcesses"); 201 return; 202 } 203 JfrTicks end_time = JfrTicks::now(); 204 if (ret_val == FUNCTIONALITY_NOT_IMPLEMENTED) { 205 return; 206 } 207 if (ret_val == OS_OK) { 208 // feature is implemented, write real event 209 while (processes != NULL) { 210 SystemProcess* tmp = processes; 211 const char* info = processes->command_line(); 212 if (info == NULL) { 213 info = processes->path(); 214 } 215 if (info == NULL) { 216 info = processes->name(); 217 } 218 if (info == NULL) { 219 info = "?"; 220 } 221 jio_snprintf(pid_buf, sizeof(pid_buf), "%d", processes->pid()); 222 EventSystemProcess event(UNTIMED); 223 event.set_pid(pid_buf); 224 event.set_commandLine(info); 225 event.set_starttime(start_time); 226 event.set_endtime(end_time); 227 event.commit(); 228 processes = processes->next(); 229 delete tmp; 230 } 231 } 232 } 233 234 TRACE_REQUEST_FUNC(ThreadContextSwitchRate) { 235 double rate = 0.0; 236 int ret_val = JfrOSInterface::context_switch_rate(&rate); 237 if (ret_val == OS_ERR) { 238 log_debug(jfr, system)( "Unable to generate requestable event ThreadContextSwitchRate"); 239 return; 240 } 241 if (ret_val == FUNCTIONALITY_NOT_IMPLEMENTED) { 242 return; 243 } 244 if (ret_val == OS_OK) { 245 EventThreadContextSwitchRate event; 246 event.set_switchRate((float)rate + 0.0f); 247 event.commit(); 248 } 249 } 250 251 #define SEND_FLAGS_OF_TYPE(eventType, flagType) \ 252 do { \ 253 JVMFlag *flag = JVMFlag::flags; \ 254 while (flag->_name != NULL) { \ 255 if (flag->is_ ## flagType()) { \ 256 if (flag->is_unlocked()) { \ 257 Event ## eventType event; \ 258 event.set_name(flag->_name); \ 259 event.set_value(flag->get_ ## flagType()); \ 260 event.set_origin(flag->get_origin()); \ 261 event.commit(); \ 262 } \ 263 } \ 264 ++flag; \ 265 } \ 266 } while (0) 267 268 TRACE_REQUEST_FUNC(IntFlag) { 269 SEND_FLAGS_OF_TYPE(IntFlag, int); 270 } 271 272 TRACE_REQUEST_FUNC(UnsignedIntFlag) { 273 SEND_FLAGS_OF_TYPE(UnsignedIntFlag, uint); 274 } 275 276 TRACE_REQUEST_FUNC(LongFlag) { 277 SEND_FLAGS_OF_TYPE(LongFlag, intx); 278 } 279 280 TRACE_REQUEST_FUNC(UnsignedLongFlag) { 281 SEND_FLAGS_OF_TYPE(UnsignedLongFlag, uintx); 282 SEND_FLAGS_OF_TYPE(UnsignedLongFlag, uint64_t); 283 SEND_FLAGS_OF_TYPE(UnsignedLongFlag, size_t); 284 } 285 286 TRACE_REQUEST_FUNC(DoubleFlag) { 287 SEND_FLAGS_OF_TYPE(DoubleFlag, double); 288 } 289 290 TRACE_REQUEST_FUNC(BooleanFlag) { 291 SEND_FLAGS_OF_TYPE(BooleanFlag, bool); 292 } 293 294 TRACE_REQUEST_FUNC(StringFlag) { 295 SEND_FLAGS_OF_TYPE(StringFlag, ccstr); 296 } 297 298 class VM_GC_SendObjectCountEvent : public VM_GC_HeapInspection { 299 public: 300 VM_GC_SendObjectCountEvent() : VM_GC_HeapInspection(NULL, true) {} 301 virtual void doit() { 302 ObjectCountEventSender::enable_requestable_event(); 303 collect(); 304 ObjectCountEventSender::disable_requestable_event(); 305 } 306 }; 307 308 TRACE_REQUEST_FUNC(ObjectCount) { 309 VM_GC_SendObjectCountEvent op; 310 VMThread::execute(&op); 311 } 312 313 class VM_G1SendHeapRegionInfoEvents : public VM_Operation { 314 virtual void doit() { 315 G1HeapRegionEventSender::send_events(); 316 } 317 virtual VMOp_Type type() const { return VMOp_HeapIterateOperation; } 318 }; 319 320 TRACE_REQUEST_FUNC(G1HeapRegionInformation) { 321 if (UseG1GC) { 322 VM_G1SendHeapRegionInfoEvents op; 323 VMThread::execute(&op); 324 } 325 } 326 327 // Java Mission Control (JMC) uses (Java) Long.MIN_VALUE to describe that a 328 // long value is undefined. 329 static jlong jmc_undefined_long = min_jlong; 330 331 TRACE_REQUEST_FUNC(GCConfiguration) { 332 GCConfiguration conf; 333 jlong pause_target = conf.has_pause_target_default_value() ? jmc_undefined_long : conf.pause_target(); 334 EventGCConfiguration event; 335 event.set_youngCollector(conf.young_collector()); 336 event.set_oldCollector(conf.old_collector()); 337 event.set_parallelGCThreads(conf.num_parallel_gc_threads()); 338 event.set_concurrentGCThreads(conf.num_concurrent_gc_threads()); 339 event.set_usesDynamicGCThreads(conf.uses_dynamic_gc_threads()); 340 event.set_isExplicitGCConcurrent(conf.is_explicit_gc_concurrent()); 341 event.set_isExplicitGCDisabled(conf.is_explicit_gc_disabled()); 342 event.set_gcTimeRatio(conf.gc_time_ratio()); 343 event.set_pauseTarget((s8)pause_target); 344 event.commit(); 345 } 346 347 TRACE_REQUEST_FUNC(GCTLABConfiguration) { 348 GCTLABConfiguration conf; 349 EventGCTLABConfiguration event; 350 event.set_usesTLABs(conf.uses_tlabs()); 351 event.set_minTLABSize(conf.min_tlab_size()); 352 event.set_tlabRefillWasteLimit(conf.tlab_refill_waste_limit()); 353 event.commit(); 354 } 355 356 TRACE_REQUEST_FUNC(GCSurvivorConfiguration) { 357 GCSurvivorConfiguration conf; 358 EventGCSurvivorConfiguration event; 359 event.set_maxTenuringThreshold(conf.max_tenuring_threshold()); 360 event.set_initialTenuringThreshold(conf.initial_tenuring_threshold()); 361 event.commit(); 362 } 363 364 TRACE_REQUEST_FUNC(GCHeapConfiguration) { 365 GCHeapConfiguration conf; 366 EventGCHeapConfiguration event; 367 event.set_minSize(conf.min_size()); 368 event.set_maxSize(conf.max_size()); 369 event.set_initialSize(conf.initial_size()); 370 event.set_usesCompressedOops(conf.uses_compressed_oops()); 371 event.set_compressedOopsMode(conf.narrow_oop_mode()); 372 event.set_objectAlignment(conf.object_alignment_in_bytes()); 373 event.set_heapAddressBits(conf.heap_address_size_in_bits()); 374 event.commit(); 375 } 376 377 TRACE_REQUEST_FUNC(YoungGenerationConfiguration) { 378 GCYoungGenerationConfiguration conf; 379 jlong max_size = conf.has_max_size_default_value() ? jmc_undefined_long : conf.max_size(); 380 EventYoungGenerationConfiguration event; 381 event.set_maxSize((u8)max_size); 382 event.set_minSize(conf.min_size()); 383 event.set_newRatio(conf.new_ratio()); 384 event.commit(); 385 } 386 387 TRACE_REQUEST_FUNC(InitialSystemProperty) { 388 SystemProperty* p = Arguments::system_properties(); 389 JfrTicks time_stamp = JfrTicks::now(); 390 while (p != NULL) { 391 if (!p->internal()) { 392 EventInitialSystemProperty event(UNTIMED); 393 event.set_key(p->key()); 394 event.set_value(p->value()); 395 event.set_endtime(time_stamp); 396 event.commit(); 397 } 398 p = p->next(); 399 } 400 } 401 402 TRACE_REQUEST_FUNC(ThreadAllocationStatistics) { 403 ResourceMark rm; 404 int initial_size = Threads::number_of_threads(); 405 GrowableArray<jlong> allocated(initial_size); 406 GrowableArray<traceid> thread_ids(initial_size); 407 JfrTicks time_stamp = JfrTicks::now(); 408 { 409 // Collect allocation statistics while holding threads lock 410 MutexLockerEx ml(Threads_lock); 411 for (JavaThreadIteratorWithHandle jtiwh; JavaThread *jt = jtiwh.next(); ) { 412 allocated.append(jt->cooked_allocated_bytes()); 413 thread_ids.append(JFR_THREAD_ID(jt)); 414 } 415 } 416 417 // Write allocation statistics to buffer. 418 for(int i = 0; i < thread_ids.length(); i++) { 419 EventThreadAllocationStatistics event(UNTIMED); 420 event.set_allocated(allocated.at(i)); 421 event.set_thread(thread_ids.at(i)); 422 event.set_endtime(time_stamp); 423 event.commit(); 424 } 425 } 426 427 /** 428 * PhysicalMemory event represents: 429 * 430 * @totalSize == The amount of physical memory (hw) installed and reported by the OS, in bytes. 431 * @usedSize == The amount of physical memory currently in use in the system (reserved/committed), in bytes. 432 * 433 * Both fields are systemwide, i.e. represents the entire OS/HW environment. 434 * These fields do not include virtual memory. 435 * 436 * If running inside a guest OS on top of a hypervisor in a virtualized environment, 437 * the total memory reported is the amount of memory configured for the guest OS by the hypervisor. 438 */ 439 TRACE_REQUEST_FUNC(PhysicalMemory) { 440 u8 totalPhysicalMemory = os::physical_memory(); 441 EventPhysicalMemory event; 442 event.set_totalSize(totalPhysicalMemory); 443 event.set_usedSize(totalPhysicalMemory - os::available_memory()); 444 event.commit(); 445 } 446 447 TRACE_REQUEST_FUNC(JavaThreadStatistics) { 448 EventJavaThreadStatistics event; 449 event.set_activeCount(ThreadService::get_live_thread_count()); 450 event.set_daemonCount(ThreadService::get_daemon_thread_count()); 451 event.set_accumulatedCount(ThreadService::get_total_thread_count()); 452 event.set_peakCount(ThreadService::get_peak_thread_count()); 453 event.commit(); 454 } 455 456 TRACE_REQUEST_FUNC(ClassLoadingStatistics) { 457 EventClassLoadingStatistics event; 458 event.set_loadedClassCount(ClassLoadingService::loaded_class_count()); 459 event.set_unloadedClassCount(ClassLoadingService::unloaded_class_count()); 460 event.commit(); 461 } 462 463 class JfrClassLoaderStatsClosure : public ClassLoaderStatsClosure { 464 public: 465 JfrClassLoaderStatsClosure() : ClassLoaderStatsClosure(NULL) {} 466 467 bool do_entry(oop const& key, ClassLoaderStats* const& cls) { 468 const ClassLoaderData* this_cld = cls->_class_loader != NULL ? 469 java_lang_ClassLoader::loader_data(cls->_class_loader) : (ClassLoaderData*)NULL; 470 const ClassLoaderData* parent_cld = cls->_parent != NULL ? 471 java_lang_ClassLoader::loader_data(cls->_parent) : (ClassLoaderData*)NULL; 472 EventClassLoaderStatistics event; 473 event.set_classLoader(this_cld); 474 event.set_parentClassLoader(parent_cld); 475 event.set_classLoaderData((intptr_t)cls->_cld); 476 event.set_classCount(cls->_classes_count); 477 event.set_chunkSize(cls->_chunk_sz); 478 event.set_blockSize(cls->_block_sz); 479 event.set_anonymousClassCount(cls->_anon_classes_count); 480 event.set_anonymousChunkSize(cls->_anon_chunk_sz); 481 event.set_anonymousBlockSize(cls->_anon_block_sz); 482 event.commit(); 483 return true; 484 } 485 486 void createEvents(void) { 487 _stats->iterate(this); 488 } 489 }; 490 491 class JfrClassLoaderStatsVMOperation : public ClassLoaderStatsVMOperation { 492 public: 493 JfrClassLoaderStatsVMOperation() : ClassLoaderStatsVMOperation(NULL) { } 494 495 void doit() { 496 JfrClassLoaderStatsClosure clsc; 497 ClassLoaderDataGraph::cld_do(&clsc); 498 clsc.createEvents(); 499 } 500 }; 501 502 TRACE_REQUEST_FUNC(ClassLoaderStatistics) { 503 JfrClassLoaderStatsVMOperation op; 504 VMThread::execute(&op); 505 } 506 507 TRACE_REQUEST_FUNC(CompilerStatistics) { 508 EventCompilerStatistics event; 509 event.set_compileCount(CompileBroker::get_total_compile_count()); 510 event.set_bailoutCount(CompileBroker::get_total_bailout_count()); 511 event.set_invalidatedCount(CompileBroker::get_total_invalidated_count()); 512 event.set_osrCompileCount(CompileBroker::get_total_osr_compile_count()); 513 event.set_standardCompileCount(CompileBroker::get_total_standard_compile_count()); 514 event.set_osrBytesCompiled(CompileBroker::get_sum_osr_bytes_compiled()); 515 event.set_standardBytesCompiled(CompileBroker::get_sum_standard_bytes_compiled()); 516 event.set_nmetodsSize(CompileBroker::get_sum_nmethod_size()); 517 event.set_nmetodCodeSize(CompileBroker::get_sum_nmethod_code_size()); 518 event.set_peakTimeSpent(CompileBroker::get_peak_compilation_time()); 519 event.set_totalTimeSpent(CompileBroker::get_total_compilation_time()); 520 event.commit(); 521 } 522 523 TRACE_REQUEST_FUNC(CompilerConfiguration) { 524 EventCompilerConfiguration event; 525 event.set_threadCount(CICompilerCount); 526 event.set_tieredCompilation(TieredCompilation); 527 event.commit(); 528 } 529 530 TRACE_REQUEST_FUNC(CodeCacheStatistics) { 531 // Emit stats for all available code heaps 532 for (int bt = 0; bt < CodeBlobType::NumTypes; ++bt) { 533 if (CodeCache::heap_available(bt)) { 534 EventCodeCacheStatistics event; 535 event.set_codeBlobType((u1)bt); 536 event.set_startAddress((u8)CodeCache::low_bound(bt)); 537 event.set_reservedTopAddress((u8)CodeCache::high_bound(bt)); 538 event.set_entryCount(CodeCache::blob_count(bt)); 539 event.set_methodCount(CodeCache::nmethod_count(bt)); 540 event.set_adaptorCount(CodeCache::adapter_count(bt)); 541 event.set_unallocatedCapacity(CodeCache::unallocated_capacity(bt)); 542 event.set_fullCount(CodeCache::get_codemem_full_count(bt)); 543 event.commit(); 544 } 545 } 546 } 547 548 TRACE_REQUEST_FUNC(CodeCacheConfiguration) { 549 EventCodeCacheConfiguration event; 550 event.set_initialSize(InitialCodeCacheSize); 551 event.set_reservedSize(ReservedCodeCacheSize); 552 event.set_nonNMethodSize(NonNMethodCodeHeapSize); 553 event.set_profiledSize(ProfiledCodeHeapSize); 554 event.set_nonProfiledSize(NonProfiledCodeHeapSize); 555 event.set_expansionSize(CodeCacheExpansionSize); 556 event.set_minBlockLength(CodeCacheMinBlockLength); 557 event.set_startAddress((u8)CodeCache::low_bound()); 558 event.set_reservedTopAddress((u8)CodeCache::high_bound()); 559 event.commit(); 560 } 561 562 TRACE_REQUEST_FUNC(CodeSweeperStatistics) { 563 EventCodeSweeperStatistics event; 564 event.set_sweepCount(NMethodSweeper::traversal_count()); 565 event.set_methodReclaimedCount(NMethodSweeper::total_nof_methods_reclaimed()); 566 event.set_totalSweepTime(NMethodSweeper::total_time_sweeping()); 567 event.set_peakFractionTime(NMethodSweeper::peak_sweep_fraction_time()); 568 event.set_peakSweepTime(NMethodSweeper::peak_sweep_time()); 569 event.commit(); 570 } 571 572 TRACE_REQUEST_FUNC(CodeSweeperConfiguration) { 573 EventCodeSweeperConfiguration event; 574 event.set_sweeperEnabled(MethodFlushing); 575 event.set_flushingEnabled(UseCodeCacheFlushing); 576 event.commit(); 577 }