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 "cds/cds_globals.hpp"
27 #include "cds/classListWriter.hpp"
28 #include "cds/dynamicArchive.hpp"
29 #include "classfile/classLoader.hpp"
30 #include "classfile/classLoaderDataGraph.hpp"
31 #include "classfile/javaClasses.hpp"
32 #include "classfile/stringTable.hpp"
33 #include "classfile/symbolTable.hpp"
34 #include "classfile/systemDictionary.hpp"
35 #include "code/codeCache.hpp"
36 #include "compiler/compilationMemoryStatistic.hpp"
37 #include "compiler/compileBroker.hpp"
38 #include "compiler/compilerOracle.hpp"
39 #include "gc/shared/collectedHeap.hpp"
40 #include "gc/shared/stringdedup/stringDedup.hpp"
41 #include "interpreter/bytecodeHistogram.hpp"
42 #include "jfr/jfrEvents.hpp"
43 #include "jfr/support/jfrThreadId.hpp"
44 #include "jvm.h"
45 #include "logging/log.hpp"
46 #include "logging/logStream.hpp"
47 #include "memory/metaspaceUtils.hpp"
48 #include "memory/oopFactory.hpp"
49 #include "memory/resourceArea.hpp"
50 #include "memory/universe.hpp"
51 #include "nmt/memMapPrinter.hpp"
52 #include "nmt/memTracker.hpp"
53 #include "oops/constantPool.hpp"
54 #include "oops/generateOopMap.hpp"
55 #include "oops/instanceKlass.hpp"
56 #include "oops/instanceOop.hpp"
57 #include "oops/klassVtable.hpp"
58 #include "oops/method.hpp"
59 #include "oops/objArrayOop.hpp"
60 #include "oops/oop.inline.hpp"
61 #include "oops/symbol.hpp"
62 #include "prims/jvmtiAgentList.hpp"
63 #include "prims/jvmtiExport.hpp"
64 #include "runtime/continuation.hpp"
65 #include "runtime/deoptimization.hpp"
66 #include "runtime/flags/flagSetting.hpp"
67 #include "runtime/handles.inline.hpp"
68 #include "runtime/init.hpp"
69 #include "runtime/interfaceSupport.inline.hpp"
70 #include "runtime/java.hpp"
71 #include "runtime/javaThread.hpp"
72 #include "runtime/sharedRuntime.hpp"
73 #include "runtime/statSampler.hpp"
74 #include "runtime/stubRoutines.hpp"
75 #include "runtime/task.hpp"
76 #include "runtime/threads.hpp"
77 #include "runtime/timer.hpp"
78 #include "runtime/trimNativeHeap.hpp"
79 #include "runtime/vmOperations.hpp"
80 #include "runtime/vmThread.hpp"
81 #include "runtime/vm_version.hpp"
82 #include "sanitizers/leak.hpp"
83 #include "utilities/dtrace.hpp"
84 #include "utilities/events.hpp"
85 #include "utilities/globalDefinitions.hpp"
86 #include "utilities/macros.hpp"
142
143 ss.print_cr("------------------------------------------------------------------------");
144 m->print_invocation_count(&ss);
145 ss.print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes());
146 ss.cr();
147 // Dump data on parameters if any
148 if (m->method_data() != nullptr && m->method_data()->parameters_type_data() != nullptr) {
149 ss.fill_to(2);
150 m->method_data()->parameters_type_data()->print_data_on(&ss);
151 }
152 m->print_codes_on(&ss);
153 tty->print("%s", ss.as_string()); // print all at once
154 total_size += m->method_data()->size_in_bytes();
155 }
156 tty->print_cr("------------------------------------------------------------------------");
157 tty->print_cr("Total MDO size: %d bytes", total_size);
158 }
159 }
160 }
161
162 #ifndef PRODUCT
163
164 // Statistics printing (method invocation histogram)
165
166 GrowableArray<Method*>* collected_invoked_methods;
167
168 static void collect_invoked_methods(Method* m) {
169 if (m->invocation_count() + m->compiled_invocation_count() >= 1) {
170 collected_invoked_methods->push(m);
171 }
172 }
173
174
175 // Invocation count accumulators should be unsigned long to shift the
176 // overflow border. Longer-running workloads tend to create invocation
177 // counts which already overflow 32-bit counters for individual methods.
178 static void print_method_invocation_histogram() {
179 ResourceMark rm;
180 collected_invoked_methods = new GrowableArray<Method*>(1024);
181 SystemDictionary::methods_do(collect_invoked_methods);
209 if (m->is_synchronized()) synch_total += iic + cic;
210 if (m->is_native()) native_total += iic + cic;
211 if (m->is_accessor()) access_total += iic + cic;
212 }
213 tty->cr();
214 total = int_total + comp_total;
215 special_total = final_total + static_total +synch_total + native_total + access_total;
216 tty->print_cr("Invocations summary for %d methods:", collected_invoked_methods->length());
217 double total_div = (double)total;
218 tty->print_cr("\t" UINT64_FORMAT_W(12) " (100%%) total", total);
219 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- interpreted", int_total, 100.0 * (double)int_total / total_div);
220 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- compiled", comp_total, 100.0 * (double)comp_total / total_div);
221 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- special methods (interpreted and compiled)",
222 special_total, 100.0 * (double)special_total/ total_div);
223 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- synchronized",synch_total, 100.0 * (double)synch_total / total_div);
224 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- final", final_total, 100.0 * (double)final_total / total_div);
225 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- static", static_total, 100.0 * (double)static_total / total_div);
226 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- native", native_total, 100.0 * (double)native_total / total_div);
227 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- accessor", access_total, 100.0 * (double)access_total / total_div);
228 tty->cr();
229 SharedRuntime::print_call_statistics(comp_total);
230 }
231
232 static void print_bytecode_count() {
233 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
234 tty->print_cr("[BytecodeCounter::counter_value = %d]", BytecodeCounter::counter_value());
235 }
236 }
237
238 #else
239
240 static void print_method_invocation_histogram() {}
241 static void print_bytecode_count() {}
242
243 #endif // PRODUCT
244
245
246 // General statistics printing (profiling ...)
247 void print_statistics() {
248 if (CITime) {
249 CompileBroker::print_times();
250 }
251
252 #ifdef COMPILER1
253 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
254 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
255 Runtime1::print_statistics();
256 SharedRuntime::print_statistics();
257 }
258 #endif /* COMPILER1 */
259
260 #ifdef COMPILER2
261 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
262 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
263 Compile::print_statistics();
264 Deoptimization::print_statistics();
265 #ifndef COMPILER1
266 SharedRuntime::print_statistics();
267 #endif //COMPILER1
268 }
269
270 if (PrintLockStatistics) {
271 OptoRuntime::print_named_counters();
272 }
273 #ifdef ASSERT
274 if (CollectIndexSetStatistics) {
275 IndexSet::print_statistics();
302 if (PrintSymbolTableSizeHistogram) {
303 SymbolTable::print_histogram();
304 }
305 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
306 BytecodeCounter::print();
307 }
308 if (PrintBytecodePairHistogram) {
309 BytecodePairHistogram::print();
310 }
311
312 if (PrintCodeCache) {
313 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
314 CodeCache::print();
315 }
316
317 // CodeHeap State Analytics.
318 if (PrintCodeHeapAnalytics) {
319 CompileBroker::print_heapinfo(nullptr, "all", 4096); // details
320 }
321
322 #ifndef PRODUCT
323 if (PrintCodeCache2) {
324 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
325 CodeCache::print_internals();
326 }
327 #endif
328
329 if (VerifyOops && Verbose) {
330 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
331 }
332
333 print_bytecode_count();
334
335 if (PrintSystemDictionaryAtExit) {
336 ResourceMark rm;
337 MutexLocker mcld(ClassLoaderDataGraph_lock);
338 SystemDictionary::print();
339 }
340
341 if (PrintClassLoaderDataGraphAtExit) {
342 ResourceMark rm;
343 MutexLocker mcld(ClassLoaderDataGraph_lock);
344 ClassLoaderDataGraph::print();
345 }
346
347 // Native memory tracking data
348 if (PrintNMTStatistics) {
349 MemTracker::final_report(tty);
350 }
351
352 if (PrintMetaspaceStatisticsAtExit) {
353 MetaspaceUtils::print_basic_report(tty, 0);
354 }
355
356 if (CompilerOracle::should_print_final_memstat_report()) {
357 CompilationMemoryStatistic::print_all_by_size(tty, false, 0);
358 }
359
360 ThreadsSMRSupport::log_statistics();
361
362 ClassLoader::print_counters(tty);
363 }
364
365 // Note: before_exit() can be executed only once, if more than one threads
366 // are trying to shutdown the VM at the same time, only one thread
367 // can run before_exit() and all other threads must wait.
368 void before_exit(JavaThread* thread, bool halt) {
369 #define BEFORE_EXIT_NOT_RUN 0
370 #define BEFORE_EXIT_RUNNING 1
371 #define BEFORE_EXIT_DONE 2
372 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
373
374 Events::log(thread, "Before exit entered");
375
376 // Note: don't use a Mutex to guard the entire before_exit(), as
377 // JVMTI post_thread_end_event and post_vm_death_event will run native code.
378 // A CAS or OSMutex would work just fine but then we need to manipulate
379 // thread state for Safepoint. Here we use Monitor wait() and notify_all()
380 // for synchronization.
381 { MonitorLocker ml(BeforeExit_lock);
382 switch (_before_exit_status) {
403
404 // Do not add any additional shutdown logic between the above mutex logic and
405 // leak sanitizer logic below. Any additional shutdown code which performs some
406 // cleanup should be added after the leak sanitizer logic below.
407
408 #ifdef LEAK_SANITIZER
409 // If we are built with LSan, we need to perform leak checking. If we are
410 // terminating normally, not halting and no VM error, we perform a normal
411 // leak check which terminates if leaks are found. If we are not terminating
412 // normally, halting or VM error, we perform a recoverable leak check which
413 // prints leaks but will not terminate.
414 if (!halt && !VMError::is_error_reported()) {
415 LSAN_DO_LEAK_CHECK();
416 } else {
417 // Ignore the return value.
418 static_cast<void>(LSAN_DO_RECOVERABLE_LEAK_CHECK());
419 }
420 #endif
421
422 #if INCLUDE_CDS
423 // Dynamic CDS dumping must happen whilst we can still reliably
424 // run Java code.
425 DynamicArchive::dump_at_exit(thread, ArchiveClassesAtExit);
426 assert(!thread->has_pending_exception(), "must be");
427 #endif
428
429
430 // Actual shutdown logic begins here.
431
432 #if INCLUDE_JVMCI
433 if (EnableJVMCI) {
434 JVMCI::shutdown(thread);
435 }
436 #endif
437
438 #if INCLUDE_CDS
439 ClassListWriter::write_resolved_constants();
440 #endif
441
442 // Hang forever on exit if we're reporting an error.
443 if (ShowMessageBoxOnError && VMError::is_error_reported()) {
444 os::infinite_sleep();
445 }
446
447 EventThreadEnd event;
448 if (event.should_commit()) {
449 event.set_thread(JFR_JVM_THREAD_ID(thread));
450 event.commit();
451 }
452
453 JFR_ONLY(Jfr::on_vm_shutdown(false, halt);)
454
455 // Stop the WatcherThread. We do this before disenrolling various
456 // PeriodicTasks to reduce the likelihood of races.
457 WatcherThread::stop();
458
459 // shut down the StatSampler task
460 StatSampler::disengage();
461 StatSampler::destroy();
462
463 NativeHeapTrimmer::cleanup();
464
465 // Stop concurrent GC threads
466 Universe::heap()->stop();
467
468 // Print GC/heap related information.
469 Log(gc, heap, exit) log;
470 if (log.is_info()) {
471 ResourceMark rm;
472 LogStream ls_info(log.info());
473 Universe::print_on(&ls_info);
474 if (log.is_trace()) {
475 LogStream ls_trace(log.trace());
476 MutexLocker mcld(ClassLoaderDataGraph_lock);
477 ClassLoaderDataGraph::print_on(&ls_trace);
478 }
479 }
480
481 if (PrintBytecodeHistogram) {
482 BytecodeHistogram::print();
483 }
484
485 #ifdef LINUX
486 if (DumpPerfMapAtExit) {
487 CodeCache::write_perf_map(nullptr, tty);
488 }
489 if (PrintMemoryMapAtExit) {
490 MemMapPrinter::print_all_mappings(tty);
491 }
492 #endif
493
494 if (JvmtiExport::should_post_thread_life()) {
495 JvmtiExport::post_thread_end(thread);
496 }
497
498 // Always call even when there are not JVMTI environments yet, since environments
499 // may be attached late and JVMTI must track phases of VM execution
500 JvmtiExport::post_vm_death();
501 JvmtiAgentList::unload_agents();
502
503 // Terminate the signal thread
504 // Note: we don't wait until it actually dies.
505 os::terminate_signal_thread();
506
507 print_statistics();
508 Universe::heap()->print_tracing_info();
509
510 { MutexLocker ml(BeforeExit_lock);
511 _before_exit_status = BEFORE_EXIT_DONE;
512 BeforeExit_lock->notify_all();
513 }
514
515 if (VerifyStringTableAtExit) {
516 size_t fail_cnt = StringTable::verify_and_compare_entries();
517 if (fail_cnt != 0) {
518 tty->print_cr("ERROR: fail_cnt=" SIZE_FORMAT, fail_cnt);
519 guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
520 }
521 }
522
523 #undef BEFORE_EXIT_NOT_RUN
524 #undef BEFORE_EXIT_RUNNING
525 #undef BEFORE_EXIT_DONE
526 }
|
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 "cds/aotLinkedClassBulkLoader.hpp"
27 #include "cds/cds_globals.hpp"
28 #include "cds/cdsConfig.hpp"
29 #include "cds/classListWriter.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/memMapPrinter.hpp"
59 #include "nmt/memTracker.hpp"
60 #include "oops/constantPool.hpp"
61 #include "oops/generateOopMap.hpp"
62 #include "oops/instanceKlass.hpp"
63 #include "oops/instanceOop.hpp"
64 #include "oops/klassVtable.hpp"
65 #include "oops/method.hpp"
66 #include "oops/objArrayOop.hpp"
67 #include "oops/oop.inline.hpp"
68 #include "oops/symbol.hpp"
69 #include "oops/trainingData.hpp"
70 #include "prims/jvmtiAgentList.hpp"
71 #include "prims/jvmtiExport.hpp"
72 #include "prims/methodHandles.hpp"
73 #include "runtime/continuation.hpp"
74 #include "runtime/deoptimization.hpp"
75 #include "runtime/flags/flagSetting.hpp"
76 #include "runtime/globals_extension.hpp"
77 #include "runtime/handles.inline.hpp"
78 #include "runtime/init.hpp"
79 #include "runtime/interfaceSupport.inline.hpp"
80 #include "runtime/java.hpp"
81 #include "runtime/javaThread.hpp"
82 #include "runtime/sharedRuntime.hpp"
83 #include "runtime/statSampler.hpp"
84 #include "runtime/stubRoutines.hpp"
85 #include "runtime/task.hpp"
86 #include "runtime/threads.hpp"
87 #include "runtime/timer.hpp"
88 #include "runtime/trimNativeHeap.hpp"
89 #include "runtime/vmOperations.hpp"
90 #include "runtime/vmThread.hpp"
91 #include "runtime/vm_version.hpp"
92 #include "sanitizers/leak.hpp"
93 #include "utilities/dtrace.hpp"
94 #include "utilities/events.hpp"
95 #include "utilities/globalDefinitions.hpp"
96 #include "utilities/macros.hpp"
152
153 ss.print_cr("------------------------------------------------------------------------");
154 m->print_invocation_count(&ss);
155 ss.print_cr(" mdo size: %d bytes", m->method_data()->size_in_bytes());
156 ss.cr();
157 // Dump data on parameters if any
158 if (m->method_data() != nullptr && m->method_data()->parameters_type_data() != nullptr) {
159 ss.fill_to(2);
160 m->method_data()->parameters_type_data()->print_data_on(&ss);
161 }
162 m->print_codes_on(&ss);
163 tty->print("%s", ss.as_string()); // print all at once
164 total_size += m->method_data()->size_in_bytes();
165 }
166 tty->print_cr("------------------------------------------------------------------------");
167 tty->print_cr("Total MDO size: %d bytes", total_size);
168 }
169 }
170 }
171
172 void perf_jvm_print_on(outputStream* st);
173
174 void log_vm_init_stats(bool use_tty) {
175 LogStreamHandle(Info, init) log;
176 if (log.is_enabled()) {
177 outputStream* out = use_tty ? tty : &log;
178 SharedRuntime::print_counters_on(out);
179 LogStreamHandle(Info, perf, class, link) log2;
180 outputStream* out2 = use_tty ? tty : &log2;
181 ClassLoader::print_counters(out2);
182 AOTLinkedClassBulkLoader::print_counters();
183 out->cr();
184 // FIXME: intermittent crashes
185 // if (CountBytecodesPerThread) {
186 // log.print_cr("Thread info:");
187 // class PrintThreadInfo : public ThreadClosure {
188 // outputStream* _st;
189 // public:
190 // PrintThreadInfo(outputStream* st) : ThreadClosure(), _st(st) {}
191 // void do_thread(Thread* thread) {
192 // JavaThread* jt = JavaThread::cast(thread);
193 // if (jt->bc_counter_value() > 0) {
194 // _st->print_cr(" Thread " INTPTR_FORMAT ": %ld bytecodes executed (clinit: %ld)",
195 // p2i(jt), /*jt->name(),*/ jt->bc_counter_value(), jt->clinit_bc_counter_value());
196 // }
197 // }
198 // };
199 // PrintThreadInfo cl(&log);
200 // Threads::java_threads_do(&cl);
201 // }
202 // log.cr();
203 out->print_cr("Deoptimization events: ");
204 Deoptimization::print_statistics_on(out);
205 out->cr();
206
207 out->print("Compilation statistics: ");
208 CompileBroker::print_statistics_on(out);
209 out->cr();
210
211 {
212 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
213 out->print("Code cache statistics: ");
214 CodeCache::print_nmethod_statistics_on(out);
215 out->cr();
216 }
217
218 if (SCCache::is_on_for_read()) {
219 out->print_cr("Startup Code Cache: ");
220 SCCache::print_statistics_on(out);
221 out->cr();
222 SCCache::print_timers_on(out);
223 }
224
225 VMThread::print_counters_on(out);
226 out->cr();
227 MutexLockerImpl::print_counters_on(out);
228 out->cr();
229 out->print("Runtime events for thread \"main\"");
230 if (ProfileRuntimeCalls) {
231 out->print_cr(" (%d nested events):", ProfileVMCallContext::nested_runtime_calls_count());
232
233 InterpreterRuntime::print_counters_on(out);
234 #ifdef COMPILER1
235 Runtime1::print_counters_on(out);
236 #endif
237 #ifdef COMPILER2
238 OptoRuntime::print_counters_on(out);
239 Deoptimization::print_counters_on(out);
240 #endif
241 } else {
242 out->print_cr(": no info (%s is disabled)", (UsePerfData ? "ProfileRuntimeCalls" : "UsePerfData"));
243 }
244 out->cr();
245 perf_jvm_print_on(out);
246 out->cr();
247 MethodHandles::print_counters_on(out);
248 }
249 }
250
251 void print_bytecode_count() {
252 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
253 tty->print_cr("[BytecodeCounter::counter_value = " JLONG_FORMAT "]", BytecodeCounter::counter_value());
254 }
255 }
256
257 #ifndef PRODUCT
258
259 // Statistics printing (method invocation histogram)
260
261 GrowableArray<Method*>* collected_invoked_methods;
262
263 static void collect_invoked_methods(Method* m) {
264 if (m->invocation_count() + m->compiled_invocation_count() >= 1) {
265 collected_invoked_methods->push(m);
266 }
267 }
268
269
270 // Invocation count accumulators should be unsigned long to shift the
271 // overflow border. Longer-running workloads tend to create invocation
272 // counts which already overflow 32-bit counters for individual methods.
273 static void print_method_invocation_histogram() {
274 ResourceMark rm;
275 collected_invoked_methods = new GrowableArray<Method*>(1024);
276 SystemDictionary::methods_do(collect_invoked_methods);
304 if (m->is_synchronized()) synch_total += iic + cic;
305 if (m->is_native()) native_total += iic + cic;
306 if (m->is_accessor()) access_total += iic + cic;
307 }
308 tty->cr();
309 total = int_total + comp_total;
310 special_total = final_total + static_total +synch_total + native_total + access_total;
311 tty->print_cr("Invocations summary for %d methods:", collected_invoked_methods->length());
312 double total_div = (double)total;
313 tty->print_cr("\t" UINT64_FORMAT_W(12) " (100%%) total", total);
314 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- interpreted", int_total, 100.0 * (double)int_total / total_div);
315 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- compiled", comp_total, 100.0 * (double)comp_total / total_div);
316 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- special methods (interpreted and compiled)",
317 special_total, 100.0 * (double)special_total/ total_div);
318 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- synchronized",synch_total, 100.0 * (double)synch_total / total_div);
319 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- final", final_total, 100.0 * (double)final_total / total_div);
320 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- static", static_total, 100.0 * (double)static_total / total_div);
321 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- native", native_total, 100.0 * (double)native_total / total_div);
322 tty->print_cr("\t" UINT64_FORMAT_W(12) " (%4.1f%%) |- accessor", access_total, 100.0 * (double)access_total / total_div);
323 tty->cr();
324 SharedRuntime::print_call_statistics_on(tty);
325 }
326
327 #else
328
329 static void print_method_invocation_histogram() {}
330
331 #endif // PRODUCT
332
333
334 // General statistics printing (profiling ...)
335 void print_statistics() {
336 #if INCLUDE_CDS
337 if (ReplayTraining && PrintTrainingInfo) {
338 TrainingData::print_archived_training_data_on(tty);
339 }
340 #endif
341 if (CITime) {
342 CompileBroker::print_times();
343 }
344
345 #ifdef COMPILER1
346 if ((PrintC1Statistics || LogVMOutput || LogCompilation) && UseCompiler) {
347 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintC1Statistics);
348 Runtime1::print_statistics_on(tty);
349 SharedRuntime::print_statistics();
350 }
351 #endif /* COMPILER1 */
352
353 #ifdef COMPILER2
354 if ((PrintOptoStatistics || LogVMOutput || LogCompilation) && UseCompiler) {
355 FlagSetting fs(DisplayVMOutput, DisplayVMOutput && PrintOptoStatistics);
356 Compile::print_statistics();
357 Deoptimization::print_statistics();
358 #ifndef COMPILER1
359 SharedRuntime::print_statistics();
360 #endif //COMPILER1
361 }
362
363 if (PrintLockStatistics) {
364 OptoRuntime::print_named_counters();
365 }
366 #ifdef ASSERT
367 if (CollectIndexSetStatistics) {
368 IndexSet::print_statistics();
395 if (PrintSymbolTableSizeHistogram) {
396 SymbolTable::print_histogram();
397 }
398 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) {
399 BytecodeCounter::print();
400 }
401 if (PrintBytecodePairHistogram) {
402 BytecodePairHistogram::print();
403 }
404
405 if (PrintCodeCache) {
406 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
407 CodeCache::print();
408 }
409
410 // CodeHeap State Analytics.
411 if (PrintCodeHeapAnalytics) {
412 CompileBroker::print_heapinfo(nullptr, "all", 4096); // details
413 }
414
415 LogStreamHandle(Debug, codecache, nmethod) log;
416 if (log.is_enabled()) {
417 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
418 CodeCache::print_nmethods_on(&log);
419 }
420
421 #ifndef PRODUCT
422 if (PrintCodeCache2) {
423 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
424 CodeCache::print_internals();
425 }
426 #endif
427
428 if (VerifyOops && Verbose) {
429 tty->print_cr("+VerifyOops count: %d", StubRoutines::verify_oop_count());
430 }
431
432 print_bytecode_count();
433
434 if (PrintSystemDictionaryAtExit) {
435 ResourceMark rm;
436 MutexLocker mcld(ClassLoaderDataGraph_lock);
437 SystemDictionary::print();
438 }
439
440 if (PrintClassLoaderDataGraphAtExit) {
441 ResourceMark rm;
442 MutexLocker mcld(ClassLoaderDataGraph_lock);
443 ClassLoaderDataGraph::print();
444 }
445
446 // Native memory tracking data
447 if (PrintNMTStatistics) {
448 MemTracker::final_report(tty);
449 }
450
451 if (PrintMetaspaceStatisticsAtExit) {
452 MetaspaceUtils::print_basic_report(tty, 0);
453 }
454
455 if (CompilerOracle::should_print_final_memstat_report()) {
456 CompilationMemoryStatistic::print_all_by_size(tty, false, 0);
457 }
458
459 ThreadsSMRSupport::log_statistics();
460
461 log_vm_init_stats(true /* use_tty */);
462 }
463
464 // Note: before_exit() can be executed only once, if more than one threads
465 // are trying to shutdown the VM at the same time, only one thread
466 // can run before_exit() and all other threads must wait.
467 void before_exit(JavaThread* thread, bool halt) {
468 #define BEFORE_EXIT_NOT_RUN 0
469 #define BEFORE_EXIT_RUNNING 1
470 #define BEFORE_EXIT_DONE 2
471 static jint volatile _before_exit_status = BEFORE_EXIT_NOT_RUN;
472
473 Events::log(thread, "Before exit entered");
474
475 // Note: don't use a Mutex to guard the entire before_exit(), as
476 // JVMTI post_thread_end_event and post_vm_death_event will run native code.
477 // A CAS or OSMutex would work just fine but then we need to manipulate
478 // thread state for Safepoint. Here we use Monitor wait() and notify_all()
479 // for synchronization.
480 { MonitorLocker ml(BeforeExit_lock);
481 switch (_before_exit_status) {
502
503 // Do not add any additional shutdown logic between the above mutex logic and
504 // leak sanitizer logic below. Any additional shutdown code which performs some
505 // cleanup should be added after the leak sanitizer logic below.
506
507 #ifdef LEAK_SANITIZER
508 // If we are built with LSan, we need to perform leak checking. If we are
509 // terminating normally, not halting and no VM error, we perform a normal
510 // leak check which terminates if leaks are found. If we are not terminating
511 // normally, halting or VM error, we perform a recoverable leak check which
512 // prints leaks but will not terminate.
513 if (!halt && !VMError::is_error_reported()) {
514 LSAN_DO_LEAK_CHECK();
515 } else {
516 // Ignore the return value.
517 static_cast<void>(LSAN_DO_RECOVERABLE_LEAK_CHECK());
518 }
519 #endif
520
521 #if INCLUDE_CDS
522 MethodProfiler::process_method_hotness();
523 #endif
524
525 // Actual shutdown logic begins here.
526
527 #if INCLUDE_JVMCI
528 if (EnableJVMCI) {
529 JVMCI::shutdown(thread);
530 }
531 #endif
532
533 #if INCLUDE_CDS
534 ClassListWriter::write_resolved_constants();
535 ClassListWriter::write_reflection_data();
536 ClassListWriter::write_loader_negative_lookup_cache();
537 // Dynamic CDS dumping must happen whilst we can still reliably
538 // run Java code.
539 if (CDSConfig::is_dumping_preimage_static_archive()) {
540 // Creating the hotspot.cds.preimage file
541 MetaspaceShared::preload_and_dump(thread);
542 } else {
543 DynamicArchive::dump_at_exit(thread, ArchiveClassesAtExit);
544 }
545 assert(!thread->has_pending_exception(), "must be");
546 #endif
547
548 SCCache::close(); // Write final data and close archive
549
550 // Hang forever on exit if we're reporting an error.
551 if (ShowMessageBoxOnError && VMError::is_error_reported()) {
552 os::infinite_sleep();
553 }
554
555 EventThreadEnd event;
556 if (event.should_commit()) {
557 event.set_thread(JFR_JVM_THREAD_ID(thread));
558 event.commit();
559 }
560
561 JFR_ONLY(Jfr::on_vm_shutdown(false, halt);)
562
563 // Stop the WatcherThread. We do this before disenrolling various
564 // PeriodicTasks to reduce the likelihood of races.
565 WatcherThread::stop();
566
567 // shut down the StatSampler task
568 StatSampler::disengage();
569 StatSampler::destroy();
570
571 NativeHeapTrimmer::cleanup();
572
573 // Stop concurrent GC threads
574 Universe::heap()->stop();
575
576 // Print GC/heap related information.
577 Log(gc, heap, exit) log;
578 if (log.is_info()) {
579 ResourceMark rm;
580 LogStream ls_info(log.info());
581 Universe::print_on(&ls_info);
582 if (log.is_trace()) {
583 LogStream ls_trace(log.trace());
584 MutexLocker mcld(ClassLoaderDataGraph_lock);
585 ClassLoaderDataGraph::print_on(&ls_trace);
586 }
587 }
588
589 if (PrintBytecodeHistogram) {
590 BytecodeHistogram::print(PrintBytecodeHistogramCutoff);
591 }
592
593 #ifdef LINUX
594 if (DumpPerfMapAtExit) {
595 CodeCache::write_perf_map(nullptr, tty);
596 }
597 if (PrintMemoryMapAtExit) {
598 MemMapPrinter::print_all_mappings(tty);
599 }
600 #endif
601
602 if (JvmtiExport::should_post_thread_life()) {
603 JvmtiExport::post_thread_end(thread);
604 }
605
606 // Always call even when there are not JVMTI environments yet, since environments
607 // may be attached late and JVMTI must track phases of VM execution
608 JvmtiExport::post_vm_death();
609 JvmtiAgentList::unload_agents();
610
611 // Terminate the signal thread
612 // Note: we don't wait until it actually dies.
613 os::terminate_signal_thread();
614
615 if (VerifyTrainingData) {
616 EXCEPTION_MARK;
617 CompilationPolicy::replay_training_at_init(true, THREAD); // implies TrainingData::verify()
618 }
619
620 print_statistics();
621 Universe::heap()->print_tracing_info();
622
623 { MutexLocker ml(BeforeExit_lock);
624 _before_exit_status = BEFORE_EXIT_DONE;
625 BeforeExit_lock->notify_all();
626 }
627
628 if (VerifyStringTableAtExit) {
629 size_t fail_cnt = StringTable::verify_and_compare_entries();
630 if (fail_cnt != 0) {
631 tty->print_cr("ERROR: fail_cnt=" SIZE_FORMAT, fail_cnt);
632 guarantee(fail_cnt == 0, "unexpected StringTable verification failures");
633 }
634 }
635
636 #undef BEFORE_EXIT_NOT_RUN
637 #undef BEFORE_EXIT_RUNNING
638 #undef BEFORE_EXIT_DONE
639 }
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