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src/hotspot/share/runtime/java.cpp

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  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 "cds/cds_globals.hpp"



 27 #include "cds/dynamicArchive.hpp"



 28 #include "classfile/classLoaderDataGraph.hpp"
 29 #include "classfile/javaClasses.hpp"
 30 #include "classfile/stringTable.hpp"
 31 #include "classfile/symbolTable.hpp"
 32 #include "classfile/systemDictionary.hpp"
 33 #include "code/codeCache.hpp"

 34 #include "compiler/compilationMemoryStatistic.hpp"

 35 #include "compiler/compileBroker.hpp"
 36 #include "compiler/compilerOracle.hpp"
 37 #include "gc/shared/collectedHeap.hpp"
 38 #include "gc/shared/stringdedup/stringDedup.hpp"
 39 #include "interpreter/bytecodeHistogram.hpp"

 40 #include "jfr/jfrEvents.hpp"
 41 #include "jfr/support/jfrThreadId.hpp"
 42 #include "jvm.h"
 43 #include "logging/log.hpp"
 44 #include "logging/logStream.hpp"
 45 #include "memory/metaspaceUtils.hpp"
 46 #include "memory/oopFactory.hpp"
 47 #include "memory/resourceArea.hpp"
 48 #include "memory/universe.hpp"
 49 #include "nmt/memTracker.hpp"
 50 #include "oops/constantPool.hpp"
 51 #include "oops/generateOopMap.hpp"
 52 #include "oops/instanceKlass.hpp"
 53 #include "oops/instanceOop.hpp"
 54 #include "oops/klassVtable.hpp"
 55 #include "oops/method.hpp"
 56 #include "oops/objArrayOop.hpp"
 57 #include "oops/oop.inline.hpp"
 58 #include "oops/symbol.hpp"

 59 #include "prims/jvmtiAgentList.hpp"
 60 #include "prims/jvmtiExport.hpp"

 61 #include "runtime/continuation.hpp"
 62 #include "runtime/deoptimization.hpp"
 63 #include "runtime/flags/flagSetting.hpp"

 64 #include "runtime/handles.inline.hpp"
 65 #include "runtime/init.hpp"
 66 #include "runtime/interfaceSupport.inline.hpp"
 67 #include "runtime/java.hpp"
 68 #include "runtime/javaThread.hpp"
 69 #include "runtime/sharedRuntime.hpp"
 70 #include "runtime/statSampler.hpp"
 71 #include "runtime/stubRoutines.hpp"
 72 #include "runtime/task.hpp"
 73 #include "runtime/threads.hpp"
 74 #include "runtime/timer.hpp"
 75 #include "runtime/trimNativeHeap.hpp"
 76 #include "runtime/vmOperations.hpp"
 77 #include "runtime/vmThread.hpp"
 78 #include "runtime/vm_version.hpp"
 79 #include "sanitizers/leak.hpp"
 80 #include "utilities/dtrace.hpp"
 81 #include "utilities/events.hpp"
 82 #include "utilities/globalDefinitions.hpp"
 83 #include "utilities/macros.hpp"

139 
140         ss.print_cr("------------------------------------------------------------------------");
141         m->print_invocation_count(&ss);
142         ss.print_cr("  mdo size: %d bytes", m->method_data()->size_in_bytes());
143         ss.cr();
144         // Dump data on parameters if any
145         if (m->method_data() != nullptr && m->method_data()->parameters_type_data() != nullptr) {
146           ss.fill_to(2);
147           m->method_data()->parameters_type_data()->print_data_on(&ss);
148         }
149         m->print_codes_on(&ss);
150         tty->print("%s", ss.as_string()); // print all at once
151         total_size += m->method_data()->size_in_bytes();
152       }
153       tty->print_cr("------------------------------------------------------------------------");
154       tty->print_cr("Total MDO size: %d bytes", total_size);
155     }
156   }
157 }
158 













































































159 
160 #ifndef PRODUCT
161 
162 // Statistics printing (method invocation histogram)
163 
164 GrowableArray<Method*>* collected_invoked_methods;
165 
166 static void collect_invoked_methods(Method* m) {
167   if (m->invocation_count() + m->compiled_invocation_count() >= 1) {
168     collected_invoked_methods->push(m);
169   }
170 }
171 
172 
173 // Invocation count accumulators should be unsigned long to shift the
174 // overflow border. Longer-running workloads tend to create invocation
175 // counts which already overflow 32-bit counters for individual methods.
176 static void print_method_invocation_histogram() {
177   ResourceMark rm;
178   collected_invoked_methods = new GrowableArray<Method*>(1024);

207     if (m->is_synchronized()) synch_total  += iic + cic;
208     if (m->is_native())       native_total += iic + cic;
209     if (m->is_accessor())     access_total += iic + cic;
210   }
211   tty->cr();
212   total = int_total + comp_total;
213   special_total = final_total + static_total +synch_total + native_total + access_total;
214   tty->print_cr("Invocations summary for %d methods:", collected_invoked_methods->length());
215   double total_div = (double)total;
216   tty->print_cr("\t" UINT64_FORMAT_W(12) " (100%%)  total",           total);
217   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- interpreted", int_total,     100.0 * (double)int_total    / total_div);
218   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- compiled",    comp_total,    100.0 * (double)comp_total   / total_div);
219   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- special methods (interpreted and compiled)",
220                                                                          special_total, 100.0 * (double)special_total/ total_div);
221   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- synchronized",synch_total,   100.0 * (double)synch_total  / total_div);
222   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- final",       final_total,   100.0 * (double)final_total  / total_div);
223   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- static",      static_total,  100.0 * (double)static_total / total_div);
224   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- native",      native_total,  100.0 * (double)native_total / total_div);
225   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- accessor",    access_total,  100.0 * (double)access_total / total_div);
226   tty->cr();
227   SharedRuntime::print_call_statistics(comp_total);
228 }
229 
230 static void print_bytecode_count() {
231   if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
232     tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value());
233   }
234 }
235 
236 #else
237 
238 static void print_method_invocation_histogram() {}
239 static void print_bytecode_count() {}
240 
241 #endif // PRODUCT
242 
243 
244 // General statistics printing (profiling ...)
245 void print_statistics() {



246   if (CITime) {
247     CompileBroker::print_times();
248   }
249 
250 #ifdef COMPILER1
251   if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
252     FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
253     Runtime1::print_statistics();
254     SharedRuntime::print_statistics();
255   }
256 #endif /* COMPILER1 */
257 
258 #ifdef COMPILER2
259   if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
260     FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
261     Compile::print_statistics();
262     Deoptimization::print_statistics();
263 #ifndef COMPILER1
264     SharedRuntime::print_statistics();
265 #endif //COMPILER1
266   }
267 
268   if (PrintLockStatistics || PrintPreciseRTMLockingStatistics) {
269     OptoRuntime::print_named_counters();
270   }
271 #ifdef ASSERT
272   if (CollectIndexSetStatistics) {
273     IndexSet::print_statistics();

300   if (PrintSymbolTableSizeHistogram) {
301     SymbolTable::print_histogram();
302   }
303   if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
304     BytecodeCounter::print();
305   }
306   if (PrintBytecodePairHistogram) {
307     BytecodePairHistogram::print();
308   }
309 
310   if (PrintCodeCache) {
311     MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
312     CodeCache::print();
313   }
314 
315   // CodeHeap State Analytics.
316   if (PrintCodeHeapAnalytics) {
317     CompileBroker::print_heapinfo(nullptr, "all", 4096); // details
318   }
319 






320 #ifndef PRODUCT
321   if (PrintCodeCache2) {
322     MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
323     CodeCache::print_internals();
324   }
325 #endif
326 
327   if (VerifyOops && Verbose) {
328     tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
329   }
330 
331   print_bytecode_count();
332 
333   if (PrintSystemDictionaryAtExit) {
334     ResourceMark rm;
335     MutexLocker mcld(ClassLoaderDataGraph_lock);
336     SystemDictionary::print();
337   }
338 
339   if (PrintClassLoaderDataGraphAtExit) {
340     ResourceMark rm;
341     MutexLocker mcld(ClassLoaderDataGraph_lock);
342     ClassLoaderDataGraph::print();
343   }
344 
345   // Native memory tracking data
346   if (PrintNMTStatistics) {
347     MemTracker::final_report(tty);
348   }
349 
350   if (PrintMetaspaceStatisticsAtExit) {
351     MetaspaceUtils::print_basic_report(tty, 0);
352   }
353 
354   if (CompilerOracle::should_print_final_memstat_report()) {
355     CompilationMemoryStatistic::print_all_by_size(tty, false, 0);
356   }
357 
358   ThreadsSMRSupport::log_statistics();


359 }
360 
361 // Note: before_exit() can be executed only once, if more than one threads
362 //       are trying to shutdown the VM at the same time, only one thread
363 //       can run before_exit() and all other threads must wait.
364 void before_exit(JavaThread* thread, bool halt) {
365   #define BEFORE_EXIT_NOT_RUN 0
366   #define BEFORE_EXIT_RUNNING 1
367   #define BEFORE_EXIT_DONE    2
368   static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
369 
370   Events::log(thread, "Before exit entered");
371 
372   // Note: don't use a Mutex to guard the entire before_exit(), as
373   // JVMTI post_thread_end_event and post_vm_death_event will run native code.
374   // A CAS or OSMutex would work just fine but then we need to manipulate
375   // thread state for Safepoint. Here we use Monitor wait() and notify_all()
376   // for synchronization.
377   { MonitorLocker ml(BeforeExit_lock);
378     switch (_before_exit_status) {

398   // this thread finishes before_exit().
399 
400   // Do not add any additional shutdown logic between the above mutex logic and
401   // leak sanitizer logic below. Any additional shutdown code which performs some
402   // cleanup should be added after the leak sanitizer logic below.
403 
404 #ifdef LEAK_SANITIZER
405   // If we are built with LSan, we need to perform leak checking. If we are
406   // terminating normally, not halting and no VM error, we perform a normal
407   // leak check which terminates if leaks are found. If we are not terminating
408   // normally, halting or VM error, we perform a recoverable leak check which
409   // prints leaks but will not terminate.
410   if (!halt && !VMError::is_error_reported()) {
411     LSAN_DO_LEAK_CHECK();
412   } else {
413     // Ignore the return value.
414     static_cast<void>(LSAN_DO_RECOVERABLE_LEAK_CHECK());
415   }
416 #endif
417 


418 #if INCLUDE_CDS



419   // Dynamic CDS dumping must happen whilst we can still reliably
420   // run Java code.
421   DynamicArchive::dump_at_exit(thread, ArchiveClassesAtExit);





422   assert(!thread->has_pending_exception(), "must be");
423 #endif
424 
425 
426   // Actual shutdown logic begins here.
427 
428 #if INCLUDE_JVMCI
429   if (EnableJVMCI) {
430     JVMCI::shutdown(thread);
431   }
432 #endif
433 


434   // Hang forever on exit if we're reporting an error.
435   if (ShowMessageBoxOnError && VMError::is_error_reported()) {
436     os::infinite_sleep();
437   }
438 
439   EventThreadEnd event;
440   if (event.should_commit()) {
441     event.set_thread(JFR_JVM_THREAD_ID(thread));
442     event.commit();
443   }
444 
445   JFR_ONLY(Jfr::on_vm_shutdown(false, halt);)
446 
447   // Stop the WatcherThread. We do this before disenrolling various
448   // PeriodicTasks to reduce the likelihood of races.
449   WatcherThread::stop();
450 
451   // shut down the StatSampler task
452   StatSampler::disengage();
453   StatSampler::destroy();
454 
455   NativeHeapTrimmer::cleanup();
456 
457   // Stop concurrent GC threads
458   Universe::heap()->stop();
459 
460   // Print GC/heap related information.
461   Log(gc, heap, exit) log;
462   if (log.is_info()) {
463     ResourceMark rm;
464     LogStream ls_info(log.info());
465     Universe::print_on(&ls_info);
466     if (log.is_trace()) {
467       LogStream ls_trace(log.trace());
468       MutexLocker mcld(ClassLoaderDataGraph_lock);
469       ClassLoaderDataGraph::print_on(&ls_trace);
470     }
471   }
472 
473   if (PrintBytecodeHistogram) {
474     BytecodeHistogram::print();
475   }
476 
477 #ifdef LINUX
478   if (DumpPerfMapAtExit) {
479     CodeCache::write_perf_map();
480   }
481 #endif
482 
483   if (JvmtiExport::should_post_thread_life()) {
484     JvmtiExport::post_thread_end(thread);
485   }
486 
487   // Always call even when there are not JVMTI environments yet, since environments
488   // may be attached late and JVMTI must track phases of VM execution
489   JvmtiExport::post_vm_death();
490   JvmtiAgentList::unload_agents();
491 
492   // Terminate the signal thread
493   // Note: we don't wait until it actually dies.
494   os::terminate_signal_thread();
495 





496   print_statistics();
497   Universe::heap()->print_tracing_info();
498 
499   { MutexLocker ml(BeforeExit_lock);
500     _before_exit_status = BEFORE_EXIT_DONE;
501     BeforeExit_lock->notify_all();
502   }
503 
504   if (VerifyStringTableAtExit) {
505     size_t fail_cnt = StringTable::verify_and_compare_entries();
506     if (fail_cnt != 0) {
507       tty->print_cr("ERROR: fail_cnt=" SIZE_FORMAT, fail_cnt);
508       guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
509     }
510   }
511 
512   #undef BEFORE_EXIT_NOT_RUN
513   #undef BEFORE_EXIT_RUNNING
514   #undef BEFORE_EXIT_DONE
515 }

  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 "cds/cds_globals.hpp"
 27 #include "cds/cdsConfig.hpp"
 28 #include "cds/classListWriter.hpp"
 29 #include "cds/classPreloader.hpp"
 30 #include "cds/dynamicArchive.hpp"
 31 #include "cds/methodProfiler.hpp"
 32 #include "cds/metaspaceShared.hpp"
 33 #include "classfile/classLoader.hpp"
 34 #include "classfile/classLoaderDataGraph.hpp"
 35 #include "classfile/javaClasses.hpp"
 36 #include "classfile/stringTable.hpp"
 37 #include "classfile/symbolTable.hpp"
 38 #include "classfile/systemDictionary.hpp"
 39 #include "code/codeCache.hpp"
 40 #include "code/SCCache.hpp"
 41 #include "compiler/compilationMemoryStatistic.hpp"
 42 #include "compiler/compilationPolicy.hpp"
 43 #include "compiler/compileBroker.hpp"
 44 #include "compiler/compilerOracle.hpp"
 45 #include "gc/shared/collectedHeap.hpp"
 46 #include "gc/shared/stringdedup/stringDedup.hpp"
 47 #include "interpreter/bytecodeHistogram.hpp"
 48 #include "interpreter/interpreterRuntime.hpp"
 49 #include "jfr/jfrEvents.hpp"
 50 #include "jfr/support/jfrThreadId.hpp"
 51 #include "jvm.h"
 52 #include "logging/log.hpp"
 53 #include "logging/logStream.hpp"
 54 #include "memory/metaspaceUtils.hpp"
 55 #include "memory/oopFactory.hpp"
 56 #include "memory/resourceArea.hpp"
 57 #include "memory/universe.hpp"
 58 #include "nmt/memTracker.hpp"
 59 #include "oops/constantPool.hpp"
 60 #include "oops/generateOopMap.hpp"
 61 #include "oops/instanceKlass.hpp"
 62 #include "oops/instanceOop.hpp"
 63 #include "oops/klassVtable.hpp"
 64 #include "oops/method.hpp"
 65 #include "oops/objArrayOop.hpp"
 66 #include "oops/oop.inline.hpp"
 67 #include "oops/symbol.hpp"
 68 #include "oops/trainingData.hpp"
 69 #include "prims/jvmtiAgentList.hpp"
 70 #include "prims/jvmtiExport.hpp"
 71 #include "prims/methodHandles.hpp"
 72 #include "runtime/continuation.hpp"
 73 #include "runtime/deoptimization.hpp"
 74 #include "runtime/flags/flagSetting.hpp"
 75 #include "runtime/globals_extension.hpp"
 76 #include "runtime/handles.inline.hpp"
 77 #include "runtime/init.hpp"
 78 #include "runtime/interfaceSupport.inline.hpp"
 79 #include "runtime/java.hpp"
 80 #include "runtime/javaThread.hpp"
 81 #include "runtime/sharedRuntime.hpp"
 82 #include "runtime/statSampler.hpp"
 83 #include "runtime/stubRoutines.hpp"
 84 #include "runtime/task.hpp"
 85 #include "runtime/threads.hpp"
 86 #include "runtime/timer.hpp"
 87 #include "runtime/trimNativeHeap.hpp"
 88 #include "runtime/vmOperations.hpp"
 89 #include "runtime/vmThread.hpp"
 90 #include "runtime/vm_version.hpp"
 91 #include "sanitizers/leak.hpp"
 92 #include "utilities/dtrace.hpp"
 93 #include "utilities/events.hpp"
 94 #include "utilities/globalDefinitions.hpp"
 95 #include "utilities/macros.hpp"

151 
152         ss.print_cr("------------------------------------------------------------------------");
153         m->print_invocation_count(&ss);
154         ss.print_cr("  mdo size: %d bytes", m->method_data()->size_in_bytes());
155         ss.cr();
156         // Dump data on parameters if any
157         if (m->method_data() != nullptr && m->method_data()->parameters_type_data() != nullptr) {
158           ss.fill_to(2);
159           m->method_data()->parameters_type_data()->print_data_on(&ss);
160         }
161         m->print_codes_on(&ss);
162         tty->print("%s", ss.as_string()); // print all at once
163         total_size += m->method_data()->size_in_bytes();
164       }
165       tty->print_cr("------------------------------------------------------------------------");
166       tty->print_cr("Total MDO size: %d bytes", total_size);
167     }
168   }
169 }
170 
171 void perf_jvm_print_on(outputStream* st);
172 
173 void log_vm_init_stats() {
174   LogStreamHandle(Info, init) log;
175   if (log.is_enabled()) {
176     SharedRuntime::print_counters_on(&log);
177     ClassLoader::print_counters();
178     ClassPreloader::print_counters();
179     log.cr();
180     // FIXME: intermittent crashes
181 //    if (CountBytecodesPerThread) {
182 //      log.print_cr("Thread info:");
183 //      class PrintThreadInfo : public ThreadClosure {
184 //        outputStream* _st;
185 //      public:
186 //        PrintThreadInfo(outputStream* st) : ThreadClosure(), _st(st) {}
187 //        void do_thread(Thread* thread) {
188 //          JavaThread* jt = JavaThread::cast(thread);
189 //          if (jt->bc_counter_value() > 0) {
190 //            _st->print_cr("  Thread " INTPTR_FORMAT ": %ld bytecodes executed (clinit: %ld)",
191 //                          p2i(jt), /*jt->name(),*/ jt->bc_counter_value(), jt->clinit_bc_counter_value());
192 //          }
193 //        }
194 //      };
195 //      PrintThreadInfo cl(&log);
196 //      Threads::java_threads_do(&cl);
197 //    }
198 //    log.cr();
199     log.print_cr("Deoptimization events: ");
200     Deoptimization::print_statistics_on(&log);
201     log.cr();
202 
203     log.print("Compilation statistics: ");
204     CompileBroker::print_statistics_on(&log);
205     log.cr();
206 
207     {
208       MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
209       log.print("Code cache statistics: ");
210       CodeCache::print_nmethod_statistics_on(&log);
211       log.cr();
212     }
213 
214     if (SCCache::is_on_for_read()) {
215       log.print_cr("Startup Code Cache: ");
216       SCCache::print_statistics_on(&log);
217       log.cr();
218       SCCache::print_timers_on(&log);
219     }
220 
221     VMThread::print_counters_on(&log);
222     log.cr();
223     MutexLockerImpl::print_counters_on(&log);
224     log.cr();
225     log.print("Runtime events for thread \"main\"");
226     if (ProfileRuntimeCalls) {
227       log.print_cr(" (%d nested events):", ProfileVMCallContext::nested_runtime_calls_count());
228 
229       Runtime1::print_counters_on(&log);
230       OptoRuntime::print_counters_on(&log);
231       InterpreterRuntime::print_counters_on(&log);
232       Deoptimization::print_counters_on(&log);
233     } else {
234       log.print_cr(": no info (%s is disabled)", (UsePerfData ? "ProfileRuntimeCalls" : "UsePerfData"));
235     }
236     log.cr();
237     perf_jvm_print_on(&log);
238     log.cr();
239     MethodHandles::print_counters_on(&log);
240   }
241 }
242 
243 void print_bytecode_count() {
244   if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
245     tty->print_cr("[BytecodeCounter::counter_value = %ld]", BytecodeCounter::counter_value());
246   }
247 }
248 
249 #ifndef PRODUCT
250 
251 // Statistics printing (method invocation histogram)
252 
253 GrowableArray<Method*>* collected_invoked_methods;
254 
255 static void collect_invoked_methods(Method* m) {
256   if (m->invocation_count() + m->compiled_invocation_count() >= 1) {
257     collected_invoked_methods->push(m);
258   }
259 }
260 
261 
262 // Invocation count accumulators should be unsigned long to shift the
263 // overflow border. Longer-running workloads tend to create invocation
264 // counts which already overflow 32-bit counters for individual methods.
265 static void print_method_invocation_histogram() {
266   ResourceMark rm;
267   collected_invoked_methods = new GrowableArray<Method*>(1024);

296     if (m->is_synchronized()) synch_total  += iic + cic;
297     if (m->is_native())       native_total += iic + cic;
298     if (m->is_accessor())     access_total += iic + cic;
299   }
300   tty->cr();
301   total = int_total + comp_total;
302   special_total = final_total + static_total +synch_total + native_total + access_total;
303   tty->print_cr("Invocations summary for %d methods:", collected_invoked_methods->length());
304   double total_div = (double)total;
305   tty->print_cr("\t" UINT64_FORMAT_W(12) " (100%%)  total",           total);
306   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- interpreted", int_total,     100.0 * (double)int_total    / total_div);
307   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- compiled",    comp_total,    100.0 * (double)comp_total   / total_div);
308   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- special methods (interpreted and compiled)",
309                                                                          special_total, 100.0 * (double)special_total/ total_div);
310   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- synchronized",synch_total,   100.0 * (double)synch_total  / total_div);
311   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- final",       final_total,   100.0 * (double)final_total  / total_div);
312   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- static",      static_total,  100.0 * (double)static_total / total_div);
313   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- native",      native_total,  100.0 * (double)native_total / total_div);
314   tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%)    |- accessor",    access_total,  100.0 * (double)access_total / total_div);
315   tty->cr();
316   SharedRuntime::print_call_statistics_on(tty);






317 }
318 
319 #else
320 
321 static void print_method_invocation_histogram() {}

322 
323 #endif // PRODUCT
324 
325 
326 // General statistics printing (profiling ...)
327 void print_statistics() {
328   if (ReplayTraining && PrintTrainingInfo) {
329     TrainingData::print_archived_training_data_on(tty);
330   }
331   if (CITime) {
332     CompileBroker::print_times();
333   }
334 
335 #ifdef COMPILER1
336   if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
337     FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
338     Runtime1::print_statistics_on(tty);
339     SharedRuntime::print_statistics();
340   }
341 #endif /* COMPILER1 */
342 
343 #ifdef COMPILER2
344   if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
345     FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
346     Compile::print_statistics();
347     Deoptimization::print_statistics();
348 #ifndef COMPILER1
349     SharedRuntime::print_statistics();
350 #endif //COMPILER1
351   }
352 
353   if (PrintLockStatistics || PrintPreciseRTMLockingStatistics) {
354     OptoRuntime::print_named_counters();
355   }
356 #ifdef ASSERT
357   if (CollectIndexSetStatistics) {
358     IndexSet::print_statistics();

385   if (PrintSymbolTableSizeHistogram) {
386     SymbolTable::print_histogram();
387   }
388   if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
389     BytecodeCounter::print();
390   }
391   if (PrintBytecodePairHistogram) {
392     BytecodePairHistogram::print();
393   }
394 
395   if (PrintCodeCache) {
396     MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
397     CodeCache::print();
398   }
399 
400   // CodeHeap State Analytics.
401   if (PrintCodeHeapAnalytics) {
402     CompileBroker::print_heapinfo(nullptr, "all", 4096); // details
403   }
404 
405   LogStreamHandle(Debug, codecache, nmethod) log;
406   if (log.is_enabled()) {
407     MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
408     CodeCache::print_nmethods_on(&log);
409   }
410 
411 #ifndef PRODUCT
412   if (PrintCodeCache2) {
413     MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
414     CodeCache::print_internals();
415   }
416 #endif
417 
418   if (VerifyOops && Verbose) {
419     tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
420   }
421 
422   print_bytecode_count();
423 
424   if (PrintSystemDictionaryAtExit) {
425     ResourceMark rm;
426     MutexLocker mcld(ClassLoaderDataGraph_lock);
427     SystemDictionary::print();
428   }
429 
430   if (PrintClassLoaderDataGraphAtExit) {
431     ResourceMark rm;
432     MutexLocker mcld(ClassLoaderDataGraph_lock);
433     ClassLoaderDataGraph::print();
434   }
435 
436   // Native memory tracking data
437   if (PrintNMTStatistics) {
438     MemTracker::final_report(tty);
439   }
440 
441   if (PrintMetaspaceStatisticsAtExit) {
442     MetaspaceUtils::print_basic_report(tty, 0);
443   }
444 
445   if (CompilerOracle::should_print_final_memstat_report()) {
446     CompilationMemoryStatistic::print_all_by_size(tty, false, 0);
447   }
448 
449   ThreadsSMRSupport::log_statistics();
450 
451   log_vm_init_stats();
452 }
453 
454 // Note: before_exit() can be executed only once, if more than one threads
455 //       are trying to shutdown the VM at the same time, only one thread
456 //       can run before_exit() and all other threads must wait.
457 void before_exit(JavaThread* thread, bool halt) {
458   #define BEFORE_EXIT_NOT_RUN 0
459   #define BEFORE_EXIT_RUNNING 1
460   #define BEFORE_EXIT_DONE    2
461   static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
462 
463   Events::log(thread, "Before exit entered");
464 
465   // Note: don't use a Mutex to guard the entire before_exit(), as
466   // JVMTI post_thread_end_event and post_vm_death_event will run native code.
467   // A CAS or OSMutex would work just fine but then we need to manipulate
468   // thread state for Safepoint. Here we use Monitor wait() and notify_all()
469   // for synchronization.
470   { MonitorLocker ml(BeforeExit_lock);
471     switch (_before_exit_status) {

491   // this thread finishes before_exit().
492 
493   // Do not add any additional shutdown logic between the above mutex logic and
494   // leak sanitizer logic below. Any additional shutdown code which performs some
495   // cleanup should be added after the leak sanitizer logic below.
496 
497 #ifdef LEAK_SANITIZER
498   // If we are built with LSan, we need to perform leak checking. If we are
499   // terminating normally, not halting and no VM error, we perform a normal
500   // leak check which terminates if leaks are found. If we are not terminating
501   // normally, halting or VM error, we perform a recoverable leak check which
502   // prints leaks but will not terminate.
503   if (!halt && !VMError::is_error_reported()) {
504     LSAN_DO_LEAK_CHECK();
505   } else {
506     // Ignore the return value.
507     static_cast<void>(LSAN_DO_RECOVERABLE_LEAK_CHECK());
508   }
509 #endif
510 
511   MethodProfiler::process_method_hotness();
512 
513 #if INCLUDE_CDS
514   ClassListWriter::write_resolved_constants();
515   ClassListWriter::write_reflection_data();
516   ClassListWriter::write_loader_negative_lookup_cache();
517   // Dynamic CDS dumping must happen whilst we can still reliably
518   // run Java code.
519   if (CDSConfig::is_dumping_preimage_static_archive()) {
520     // Creating the hotspot.cds.preimage file
521     MetaspaceShared::preload_and_dump();
522   } else {
523     DynamicArchive::dump_at_exit(thread, ArchiveClassesAtExit);
524   }
525   assert(!thread->has_pending_exception(), "must be");
526 #endif
527 

528   // Actual shutdown logic begins here.
529 
530 #if INCLUDE_JVMCI
531   if (EnableJVMCI) {
532     JVMCI::shutdown(thread);
533   }
534 #endif
535 
536   SCCache::close(); // Write final data and close archive
537 
538   // Hang forever on exit if we're reporting an error.
539   if (ShowMessageBoxOnError && VMError::is_error_reported()) {
540     os::infinite_sleep();
541   }
542 
543   EventThreadEnd event;
544   if (event.should_commit()) {
545     event.set_thread(JFR_JVM_THREAD_ID(thread));
546     event.commit();
547   }
548 
549   JFR_ONLY(Jfr::on_vm_shutdown(false, halt);)
550 
551   // Stop the WatcherThread. We do this before disenrolling various
552   // PeriodicTasks to reduce the likelihood of races.
553   WatcherThread::stop();
554 
555   // shut down the StatSampler task
556   StatSampler::disengage();
557   StatSampler::destroy();
558 
559   NativeHeapTrimmer::cleanup();
560 
561   // Stop concurrent GC threads
562   Universe::heap()->stop();
563 
564   // Print GC/heap related information.
565   Log(gc, heap, exit) log;
566   if (log.is_info()) {
567     ResourceMark rm;
568     LogStream ls_info(log.info());
569     Universe::print_on(&ls_info);
570     if (log.is_trace()) {
571       LogStream ls_trace(log.trace());
572       MutexLocker mcld(ClassLoaderDataGraph_lock);
573       ClassLoaderDataGraph::print_on(&ls_trace);
574     }
575   }
576 
577   if (PrintBytecodeHistogram) {
578     BytecodeHistogram::print(PrintBytecodeHistogramCutoff);
579   }
580 
581 #ifdef LINUX
582   if (DumpPerfMapAtExit) {
583     CodeCache::write_perf_map();
584   }
585 #endif
586 
587   if (JvmtiExport::should_post_thread_life()) {
588     JvmtiExport::post_thread_end(thread);
589   }
590 
591   // Always call even when there are not JVMTI environments yet, since environments
592   // may be attached late and JVMTI must track phases of VM execution
593   JvmtiExport::post_vm_death();
594   JvmtiAgentList::unload_agents();
595 
596   // Terminate the signal thread
597   // Note: we don't wait until it actually dies.
598   os::terminate_signal_thread();
599 
600   if (VerifyTrainingData) {
601     EXCEPTION_MARK;
602     CompilationPolicy::replay_training_at_init(true, THREAD); // implies TrainingData::verify()
603   }
604 
605   print_statistics();
606   Universe::heap()->print_tracing_info();
607 
608   { MutexLocker ml(BeforeExit_lock);
609     _before_exit_status = BEFORE_EXIT_DONE;
610     BeforeExit_lock->notify_all();
611   }
612 
613   if (VerifyStringTableAtExit) {
614     size_t fail_cnt = StringTable::verify_and_compare_entries();
615     if (fail_cnt != 0) {
616       tty->print_cr("ERROR: fail_cnt=" SIZE_FORMAT, fail_cnt);
617       guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
618     }
619   }
620 
621   #undef BEFORE_EXIT_NOT_RUN
622   #undef BEFORE_EXIT_RUNNING
623   #undef BEFORE_EXIT_DONE
624 }
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