--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/periodic/jfrPeriodic.cpp Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,572 @@
+/*
+ * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "jvm.h"
+#include "classfile/classLoaderStats.hpp"
+#include "classfile/javaClasses.hpp"
+#include "code/codeCache.hpp"
+#include "compiler/compileBroker.hpp"
+#include "gc/g1/g1HeapRegionEventSender.hpp"
+#include "gc/shared/gcConfiguration.hpp"
+#include "gc/shared/gcTrace.hpp"
+#include "gc/shared/objectCountEventSender.hpp"
+#include "gc/shared/vmGCOperations.hpp"
+#include "jfr/jfrEvents.hpp"
+#include "jfr/periodic/jfrModuleEvent.hpp"
+#include "jfr/periodic/jfrOSInterface.hpp"
+#include "jfr/periodic/jfrThreadCPULoadEvent.hpp"
+#include "jfr/periodic/jfrThreadDumpEvent.hpp"
+#include "jfr/recorder/jfrRecorder.hpp"
+#include "jfr/support/jfrThreadId.hpp"
+#include "jfr/utilities/jfrTime.hpp"
+#include "jfrfiles/jfrPeriodic.hpp"
+#include "logging/log.hpp"
+#include "memory/heapInspection.hpp"
+#include "memory/resourceArea.hpp"
+#include "oops/oop.inline.hpp"
+#include "runtime/arguments.hpp"
+#include "runtime/flags/jvmFlag.hpp"
+#include "runtime/globals.hpp"
+#include "runtime/os.hpp"
+#include "runtime/os_perf.hpp"
+#include "runtime/thread.inline.hpp"
+#include "runtime/threadSMR.hpp"
+#include "runtime/sweeper.hpp"
+#include "runtime/vmThread.hpp"
+#include "services/classLoadingService.hpp"
+#include "services/management.hpp"
+#include "services/threadService.hpp"
+#include "utilities/exceptions.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+/**
+ * JfrPeriodic class
+ * Implementation of declarations in
+ * xsl generated traceRequestables.hpp
+ */
+#define TRACE_REQUEST_FUNC(id) void JfrPeriodicEventSet::request##id(void)
+
+TRACE_REQUEST_FUNC(JVMInformation) {
+ ResourceMark rm;
+ EventJVMInformation event;
+ event.set_jvmName(VM_Version::vm_name());
+ event.set_jvmVersion(VM_Version::internal_vm_info_string());
+ event.set_javaArguments(Arguments::java_command());
+ event.set_jvmArguments(Arguments::jvm_args());
+ event.set_jvmFlags(Arguments::jvm_flags());
+ event.set_jvmStartTime(Management::vm_init_done_time());
+ event.commit();
+ }
+
+TRACE_REQUEST_FUNC(OSInformation) {
+ ResourceMark rm;
+ char* os_name = NEW_RESOURCE_ARRAY(char, 2048);
+ JfrOSInterface::os_version(&os_name);
+ EventOSInformation event;
+ event.set_osVersion(os_name);
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(ModuleRequire) {
+ JfrModuleEvent::generate_module_dependency_events();
+}
+
+TRACE_REQUEST_FUNC(ModuleExport) {
+ JfrModuleEvent::generate_module_export_events();
+}
+
+/*
+ * This is left empty on purpose, having ExecutionSample as a requestable
+ * is a way of getting the period. The period is passed to ThreadSampling::update_period.
+ * Implementation in jfrSamples.cpp
+ */
+TRACE_REQUEST_FUNC(ExecutionSample) {
+}
+TRACE_REQUEST_FUNC(NativeMethodSample) {
+}
+
+TRACE_REQUEST_FUNC(ThreadDump) {
+ ResourceMark rm;
+ EventThreadDump event;
+ event.set_result(JfrDcmdEvent::thread_dump());
+ event.commit();
+}
+
+static int _native_library_callback(const char* name, address base, address top, void *param) {
+ EventNativeLibrary event(UNTIMED);
+ event.set_name(name);
+ event.set_baseAddress((u8)base);
+ event.set_topAddress((u8)top);
+ event.set_endtime(*(JfrTicks*) param);
+ event.commit();
+ return 0;
+}
+
+TRACE_REQUEST_FUNC(NativeLibrary) {
+ JfrTicks ts= JfrTicks::now();
+ os::get_loaded_modules_info(&_native_library_callback, (void *)&ts);
+}
+
+TRACE_REQUEST_FUNC(InitialEnvironmentVariable) {
+ JfrOSInterface::generate_initial_environment_variable_events();
+}
+
+TRACE_REQUEST_FUNC(CPUInformation) {
+ CPUInformation cpu_info;
+ int ret_val = JfrOSInterface::cpu_information(cpu_info);
+ if (ret_val == OS_ERR) {
+ log_debug(jfr, system)( "Unable to generate requestable event CPUInformation");
+ return;
+ }
+ if (ret_val == FUNCTIONALITY_NOT_IMPLEMENTED) {
+ return;
+ }
+ if (ret_val == OS_OK) {
+ EventCPUInformation event;
+ event.set_cpu(cpu_info.cpu_name());
+ event.set_description(cpu_info.cpu_description());
+ event.set_sockets(cpu_info.number_of_sockets());
+ event.set_cores(cpu_info.number_of_cores());
+ event.set_hwThreads(cpu_info.number_of_hardware_threads());
+ event.commit();
+ }
+}
+
+TRACE_REQUEST_FUNC(CPULoad) {
+ double u = 0; // user time
+ double s = 0; // kernel time
+ double t = 0; // total time
+ int ret_val = JfrOSInterface::cpu_loads_process(&u, &s, &t);
+ if (ret_val == OS_ERR) {
+ log_debug(jfr, system)( "Unable to generate requestable event CPULoad");
+ return;
+ }
+ if (ret_val == OS_OK) {
+ EventCPULoad event;
+ event.set_jvmUser((float)u);
+ event.set_jvmSystem((float)s);
+ event.set_machineTotal((float)t);
+ event.commit();
+ }
+}
+
+TRACE_REQUEST_FUNC(ThreadCPULoad) {
+ JfrThreadCPULoadEvent::send_events();
+}
+
+TRACE_REQUEST_FUNC(CPUTimeStampCounter) {
+ EventCPUTimeStampCounter event;
+ event.set_fastTimeEnabled(JfrTime::is_ft_enabled());
+ event.set_fastTimeAutoEnabled(JfrTime::is_ft_supported());
+ event.set_osFrequency(os::elapsed_frequency());
+ event.set_fastTimeFrequency(JfrTime::frequency());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(SystemProcess) {
+ char pid_buf[16];
+ SystemProcess* processes = NULL;
+ int num_of_processes = 0;
+ JfrTicks start_time = JfrTicks::now();
+ int ret_val = JfrOSInterface::system_processes(&processes, &num_of_processes);
+ if (ret_val == OS_ERR) {
+ log_debug(jfr, system)( "Unable to generate requestable event SystemProcesses");
+ return;
+ }
+ JfrTicks end_time = JfrTicks::now();
+ if (ret_val == FUNCTIONALITY_NOT_IMPLEMENTED) {
+ return;
+ }
+ if (ret_val == OS_OK) {
+ // feature is implemented, write real event
+ while (processes != NULL) {
+ SystemProcess* tmp = processes;
+ const char* info = processes->command_line();
+ if (info == NULL) {
+ info = processes->path();
+ }
+ if (info == NULL) {
+ info = processes->name();
+ }
+ if (info == NULL) {
+ info = "?";
+ }
+ jio_snprintf(pid_buf, sizeof(pid_buf), "%d", processes->pid());
+ EventSystemProcess event(UNTIMED);
+ event.set_pid(pid_buf);
+ event.set_commandLine(info);
+ event.set_starttime(start_time);
+ event.set_endtime(end_time);
+ event.commit();
+ processes = processes->next();
+ delete tmp;
+ }
+ }
+}
+
+TRACE_REQUEST_FUNC(ThreadContextSwitchRate) {
+ double rate = 0.0;
+ int ret_val = JfrOSInterface::context_switch_rate(&rate);
+ if (ret_val == OS_ERR) {
+ log_debug(jfr, system)( "Unable to generate requestable event ThreadContextSwitchRate");
+ return;
+ }
+ if (ret_val == FUNCTIONALITY_NOT_IMPLEMENTED) {
+ return;
+ }
+ if (ret_val == OS_OK) {
+ EventThreadContextSwitchRate event;
+ event.set_switchRate((float)rate + 0.0f);
+ event.commit();
+ }
+}
+
+#define SEND_FLAGS_OF_TYPE(eventType, flagType) \
+ do { \
+ JVMFlag *flag = JVMFlag::flags; \
+ while (flag->_name != NULL) { \
+ if (flag->is_ ## flagType()) { \
+ if (flag->is_unlocked()) { \
+ Event ## eventType event; \
+ event.set_name(flag->_name); \
+ event.set_value(flag->get_ ## flagType()); \
+ event.set_origin(flag->get_origin()); \
+ event.commit(); \
+ } \
+ } \
+ ++flag; \
+ } \
+ } while (0)
+
+TRACE_REQUEST_FUNC(IntFlag) {
+ SEND_FLAGS_OF_TYPE(IntFlag, int);
+}
+
+TRACE_REQUEST_FUNC(UnsignedIntFlag) {
+ SEND_FLAGS_OF_TYPE(UnsignedIntFlag, uint);
+}
+
+TRACE_REQUEST_FUNC(LongFlag) {
+ SEND_FLAGS_OF_TYPE(LongFlag, intx);
+}
+
+TRACE_REQUEST_FUNC(UnsignedLongFlag) {
+ SEND_FLAGS_OF_TYPE(UnsignedLongFlag, uintx);
+ SEND_FLAGS_OF_TYPE(UnsignedLongFlag, uint64_t);
+ SEND_FLAGS_OF_TYPE(UnsignedLongFlag, size_t);
+}
+
+TRACE_REQUEST_FUNC(DoubleFlag) {
+ SEND_FLAGS_OF_TYPE(DoubleFlag, double);
+}
+
+TRACE_REQUEST_FUNC(BooleanFlag) {
+ SEND_FLAGS_OF_TYPE(BooleanFlag, bool);
+}
+
+TRACE_REQUEST_FUNC(StringFlag) {
+ SEND_FLAGS_OF_TYPE(StringFlag, ccstr);
+}
+
+class VM_GC_SendObjectCountEvent : public VM_GC_HeapInspection {
+ public:
+ VM_GC_SendObjectCountEvent() : VM_GC_HeapInspection(NULL, true) {}
+ virtual void doit() {
+ ObjectCountEventSender::enable_requestable_event();
+ collect();
+ ObjectCountEventSender::disable_requestable_event();
+ }
+};
+
+TRACE_REQUEST_FUNC(ObjectCount) {
+ VM_GC_SendObjectCountEvent op;
+ VMThread::execute(&op);
+}
+
+class VM_G1SendHeapRegionInfoEvents : public VM_Operation {
+ virtual void doit() {
+ G1HeapRegionEventSender::send_events();
+ }
+ virtual VMOp_Type type() const { return VMOp_HeapIterateOperation; }
+};
+
+TRACE_REQUEST_FUNC(G1HeapRegionInformation) {
+ if (UseG1GC) {
+ VM_G1SendHeapRegionInfoEvents op;
+ VMThread::execute(&op);
+ }
+}
+
+// Java Mission Control (JMC) uses (Java) Long.MIN_VALUE to describe that a
+// long value is undefined.
+static jlong jmc_undefined_long = min_jlong;
+
+TRACE_REQUEST_FUNC(GCConfiguration) {
+ GCConfiguration conf;
+ jlong pause_target = conf.has_pause_target_default_value() ? jmc_undefined_long : conf.pause_target();
+ EventGCConfiguration event;
+ event.set_youngCollector(conf.young_collector());
+ event.set_oldCollector(conf.old_collector());
+ event.set_parallelGCThreads(conf.num_parallel_gc_threads());
+ event.set_concurrentGCThreads(conf.num_concurrent_gc_threads());
+ event.set_usesDynamicGCThreads(conf.uses_dynamic_gc_threads());
+ event.set_isExplicitGCConcurrent(conf.is_explicit_gc_concurrent());
+ event.set_isExplicitGCDisabled(conf.is_explicit_gc_disabled());
+ event.set_gcTimeRatio(conf.gc_time_ratio());
+ event.set_pauseTarget((s8)pause_target);
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(GCTLABConfiguration) {
+ GCTLABConfiguration conf;
+ EventGCTLABConfiguration event;
+ event.set_usesTLABs(conf.uses_tlabs());
+ event.set_minTLABSize(conf.min_tlab_size());
+ event.set_tlabRefillWasteLimit(conf.tlab_refill_waste_limit());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(GCSurvivorConfiguration) {
+ GCSurvivorConfiguration conf;
+ EventGCSurvivorConfiguration event;
+ event.set_maxTenuringThreshold(conf.max_tenuring_threshold());
+ event.set_initialTenuringThreshold(conf.initial_tenuring_threshold());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(GCHeapConfiguration) {
+ GCHeapConfiguration conf;
+ EventGCHeapConfiguration event;
+ event.set_minSize(conf.min_size());
+ event.set_maxSize(conf.max_size());
+ event.set_initialSize(conf.initial_size());
+ event.set_usesCompressedOops(conf.uses_compressed_oops());
+ event.set_compressedOopsMode(conf.narrow_oop_mode());
+ event.set_objectAlignment(conf.object_alignment_in_bytes());
+ event.set_heapAddressBits(conf.heap_address_size_in_bits());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(YoungGenerationConfiguration) {
+ GCYoungGenerationConfiguration conf;
+ jlong max_size = conf.has_max_size_default_value() ? jmc_undefined_long : conf.max_size();
+ EventYoungGenerationConfiguration event;
+ event.set_maxSize((u8)max_size);
+ event.set_minSize(conf.min_size());
+ event.set_newRatio(conf.new_ratio());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(InitialSystemProperty) {
+ SystemProperty* p = Arguments::system_properties();
+ JfrTicks time_stamp = JfrTicks::now();
+ while (p != NULL) {
+ if (!p->internal()) {
+ EventInitialSystemProperty event(UNTIMED);
+ event.set_key(p->key());
+ event.set_value(p->value());
+ event.set_endtime(time_stamp);
+ event.commit();
+ }
+ p = p->next();
+ }
+}
+
+TRACE_REQUEST_FUNC(ThreadAllocationStatistics) {
+ ResourceMark rm;
+ int initial_size = Threads::number_of_threads();
+ GrowableArray<jlong> allocated(initial_size);
+ GrowableArray<traceid> thread_ids(initial_size);
+ JfrTicks time_stamp = JfrTicks::now();
+ {
+ // Collect allocation statistics while holding threads lock
+ MutexLockerEx ml(Threads_lock);
+ for (JavaThreadIteratorWithHandle jtiwh; JavaThread *jt = jtiwh.next(); ) {
+ allocated.append(jt->cooked_allocated_bytes());
+ thread_ids.append(JFR_THREAD_ID(jt));
+ }
+ }
+
+ // Write allocation statistics to buffer.
+ for(int i = 0; i < thread_ids.length(); i++) {
+ EventThreadAllocationStatistics event(UNTIMED);
+ event.set_allocated(allocated.at(i));
+ event.set_thread(thread_ids.at(i));
+ event.set_endtime(time_stamp);
+ event.commit();
+ }
+}
+
+/**
+ * PhysicalMemory event represents:
+ *
+ * @totalSize == The amount of physical memory (hw) installed and reported by the OS, in bytes.
+ * @usedSize == The amount of physical memory currently in use in the system (reserved/committed), in bytes.
+ *
+ * Both fields are systemwide, i.e. represents the entire OS/HW environment.
+ * These fields do not include virtual memory.
+ *
+ * If running inside a guest OS on top of a hypervisor in a virtualized environment,
+ * the total memory reported is the amount of memory configured for the guest OS by the hypervisor.
+ */
+TRACE_REQUEST_FUNC(PhysicalMemory) {
+ u8 totalPhysicalMemory = os::physical_memory();
+ EventPhysicalMemory event;
+ event.set_totalSize(totalPhysicalMemory);
+ event.set_usedSize(totalPhysicalMemory - os::available_memory());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(JavaThreadStatistics) {
+ EventJavaThreadStatistics event;
+ event.set_activeCount(ThreadService::get_live_thread_count());
+ event.set_daemonCount(ThreadService::get_daemon_thread_count());
+ event.set_accumulatedCount(ThreadService::get_total_thread_count());
+ event.set_peakCount(ThreadService::get_peak_thread_count());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(ClassLoadingStatistics) {
+ EventClassLoadingStatistics event;
+ event.set_loadedClassCount(ClassLoadingService::loaded_class_count());
+ event.set_unloadedClassCount(ClassLoadingService::unloaded_class_count());
+ event.commit();
+}
+
+class JfrClassLoaderStatsClosure : public ClassLoaderStatsClosure {
+public:
+ JfrClassLoaderStatsClosure() : ClassLoaderStatsClosure(NULL) {}
+
+ bool do_entry(oop const& key, ClassLoaderStats* const& cls) {
+ const ClassLoaderData* this_cld = cls->_class_loader != NULL ?
+ java_lang_ClassLoader::loader_data(cls->_class_loader) : (ClassLoaderData*)NULL;
+ const ClassLoaderData* parent_cld = cls->_parent != NULL ?
+ java_lang_ClassLoader::loader_data(cls->_parent) : (ClassLoaderData*)NULL;
+ EventClassLoaderStatistics event;
+ event.set_classLoader(this_cld);
+ event.set_parentClassLoader(parent_cld);
+ event.set_classLoaderData((intptr_t)cls->_cld);
+ event.set_classCount(cls->_classes_count);
+ event.set_chunkSize(cls->_chunk_sz);
+ event.set_blockSize(cls->_block_sz);
+ event.set_anonymousClassCount(cls->_anon_classes_count);
+ event.set_anonymousChunkSize(cls->_anon_chunk_sz);
+ event.set_anonymousBlockSize(cls->_anon_block_sz);
+ event.commit();
+ return true;
+ }
+
+ void createEvents(void) {
+ _stats->iterate(this);
+ }
+};
+
+class JfrClassLoaderStatsVMOperation : public ClassLoaderStatsVMOperation {
+ public:
+ JfrClassLoaderStatsVMOperation() : ClassLoaderStatsVMOperation(NULL) { }
+
+ void doit() {
+ JfrClassLoaderStatsClosure clsc;
+ ClassLoaderDataGraph::cld_do(&clsc);
+ clsc.createEvents();
+ }
+};
+
+TRACE_REQUEST_FUNC(ClassLoaderStatistics) {
+ JfrClassLoaderStatsVMOperation op;
+ VMThread::execute(&op);
+}
+
+TRACE_REQUEST_FUNC(CompilerStatistics) {
+ EventCompilerStatistics event;
+ event.set_compileCount(CompileBroker::get_total_compile_count());
+ event.set_bailoutCount(CompileBroker::get_total_bailout_count());
+ event.set_invalidatedCount(CompileBroker::get_total_invalidated_count());
+ event.set_osrCompileCount(CompileBroker::get_total_osr_compile_count());
+ event.set_standardCompileCount(CompileBroker::get_total_standard_compile_count());
+ event.set_osrBytesCompiled(CompileBroker::get_sum_osr_bytes_compiled());
+ event.set_standardBytesCompiled(CompileBroker::get_sum_standard_bytes_compiled());
+ event.set_nmetodsSize(CompileBroker::get_sum_nmethod_size());
+ event.set_nmetodCodeSize(CompileBroker::get_sum_nmethod_code_size());
+ event.set_peakTimeSpent(CompileBroker::get_peak_compilation_time());
+ event.set_totalTimeSpent(CompileBroker::get_total_compilation_time());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(CompilerConfiguration) {
+ EventCompilerConfiguration event;
+ event.set_threadCount(CICompilerCount);
+ event.set_tieredCompilation(TieredCompilation);
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(CodeCacheStatistics) {
+ // Emit stats for all available code heaps
+ for (int bt = 0; bt < CodeBlobType::NumTypes; ++bt) {
+ if (CodeCache::heap_available(bt)) {
+ EventCodeCacheStatistics event;
+ event.set_codeBlobType((u1)bt);
+ event.set_startAddress((u8)CodeCache::low_bound(bt));
+ event.set_reservedTopAddress((u8)CodeCache::high_bound(bt));
+ event.set_entryCount(CodeCache::blob_count(bt));
+ event.set_methodCount(CodeCache::nmethod_count(bt));
+ event.set_adaptorCount(CodeCache::adapter_count(bt));
+ event.set_unallocatedCapacity(CodeCache::unallocated_capacity(bt));
+ event.set_fullCount(CodeCache::get_codemem_full_count(bt));
+ event.commit();
+ }
+ }
+}
+
+TRACE_REQUEST_FUNC(CodeCacheConfiguration) {
+ EventCodeCacheConfiguration event;
+ event.set_initialSize(InitialCodeCacheSize);
+ event.set_reservedSize(ReservedCodeCacheSize);
+ event.set_nonNMethodSize(NonNMethodCodeHeapSize);
+ event.set_profiledSize(ProfiledCodeHeapSize);
+ event.set_nonProfiledSize(NonProfiledCodeHeapSize);
+ event.set_expansionSize(CodeCacheExpansionSize);
+ event.set_minBlockLength(CodeCacheMinBlockLength);
+ event.set_startAddress((u8)CodeCache::low_bound());
+ event.set_reservedTopAddress((u8)CodeCache::high_bound());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(CodeSweeperStatistics) {
+ EventCodeSweeperStatistics event;
+ event.set_sweepCount(NMethodSweeper::traversal_count());
+ event.set_methodReclaimedCount(NMethodSweeper::total_nof_methods_reclaimed());
+ event.set_totalSweepTime(NMethodSweeper::total_time_sweeping());
+ event.set_peakFractionTime(NMethodSweeper::peak_sweep_fraction_time());
+ event.set_peakSweepTime(NMethodSweeper::peak_sweep_time());
+ event.commit();
+}
+
+TRACE_REQUEST_FUNC(CodeSweeperConfiguration) {
+ EventCodeSweeperConfiguration event;
+ event.set_sweeperEnabled(MethodFlushing);
+ event.set_flushingEnabled(UseCodeCacheFlushing);
+ event.commit();
+}