--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/shared/gcTrace.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,307 @@
+/*
+ * Copyright (c) 2012, 2016, 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.
+ *
+ */
+
+#ifndef SHARE_VM_GC_SHARED_GCTRACE_HPP
+#define SHARE_VM_GC_SHARED_GCTRACE_HPP
+
+#include "gc/shared/copyFailedInfo.hpp"
+#include "gc/shared/gcCause.hpp"
+#include "gc/shared/gcId.hpp"
+#include "gc/shared/gcName.hpp"
+#include "gc/shared/gcWhen.hpp"
+#include "memory/allocation.hpp"
+#include "memory/metaspace.hpp"
+#include "memory/referenceType.hpp"
+#include "utilities/macros.hpp"
+#include "utilities/ticks.hpp"
+#if INCLUDE_ALL_GCS
+#include "gc/g1/g1YCTypes.hpp"
+#endif
+
+class EvacuationInfo;
+class GCHeapSummary;
+class MetaspaceChunkFreeListSummary;
+class MetaspaceSummary;
+class PSHeapSummary;
+class G1HeapSummary;
+class G1EvacSummary;
+class ReferenceProcessorStats;
+class TimePartitions;
+class BoolObjectClosure;
+
+class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
+ private:
+ GCName _name;
+ GCCause::Cause _cause;
+ Ticks _start_timestamp;
+ Ticks _end_timestamp;
+ Tickspan _sum_of_pauses;
+ Tickspan _longest_pause;
+
+ public:
+ SharedGCInfo(GCName name) :
+ _name(name),
+ _cause(GCCause::_last_gc_cause),
+ _start_timestamp(),
+ _end_timestamp(),
+ _sum_of_pauses(),
+ _longest_pause() {
+ }
+
+ void set_start_timestamp(const Ticks& timestamp) { _start_timestamp = timestamp; }
+ const Ticks start_timestamp() const { return _start_timestamp; }
+
+ void set_end_timestamp(const Ticks& timestamp) { _end_timestamp = timestamp; }
+ const Ticks end_timestamp() const { return _end_timestamp; }
+
+ void set_name(GCName name) { _name = name; }
+ GCName name() const { return _name; }
+
+ void set_cause(GCCause::Cause cause) { _cause = cause; }
+ GCCause::Cause cause() const { return _cause; }
+
+ void set_sum_of_pauses(const Tickspan& duration) { _sum_of_pauses = duration; }
+ const Tickspan sum_of_pauses() const { return _sum_of_pauses; }
+
+ void set_longest_pause(const Tickspan& duration) { _longest_pause = duration; }
+ const Tickspan longest_pause() const { return _longest_pause; }
+};
+
+class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {
+ void* _dense_prefix;
+ public:
+ ParallelOldGCInfo() : _dense_prefix(NULL) {}
+ void report_dense_prefix(void* addr) {
+ _dense_prefix = addr;
+ }
+ void* dense_prefix() const { return _dense_prefix; }
+};
+
+#if INCLUDE_ALL_GCS
+
+class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {
+ G1YCType _type;
+ public:
+ G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
+ void set_type(G1YCType type) {
+ _type = type;
+ }
+ G1YCType type() const { return _type; }
+};
+
+#endif // INCLUDE_ALL_GCS
+
+class GCTracer : public ResourceObj {
+ protected:
+ SharedGCInfo _shared_gc_info;
+
+ public:
+ void report_gc_start(GCCause::Cause cause, const Ticks& timestamp);
+ void report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions);
+ void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
+ void report_metaspace_summary(GCWhen::Type when, const MetaspaceSummary& metaspace_summary) const;
+ void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
+ void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;
+
+ protected:
+ GCTracer(GCName name) : _shared_gc_info(name) {}
+ virtual void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);
+ virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
+
+ private:
+ void send_garbage_collection_event() const;
+ void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
+ void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const;
+ void send_metaspace_chunk_free_list_summary(GCWhen::Type when, Metaspace::MetadataType mdtype, const MetaspaceChunkFreeListSummary& summary) const;
+ void send_reference_stats_event(ReferenceType type, size_t count) const;
+ void send_phase_events(TimePartitions* time_partitions) const;
+};
+
+class YoungGCTracer : public GCTracer {
+ static const uint UNSET_TENURING_THRESHOLD = (uint) -1;
+
+ uint _tenuring_threshold;
+
+ protected:
+ YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {}
+ virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
+
+ public:
+ void report_promotion_failed(const PromotionFailedInfo& pf_info) const;
+ void report_tenuring_threshold(const uint tenuring_threshold);
+
+ /*
+ * Methods for reporting Promotion in new or outside PLAB Events.
+ *
+ * The object age is always required as it is not certain that the mark word
+ * of the oop can be trusted at this stage.
+ *
+ * obj_size is the size of the promoted object in bytes.
+ *
+ * tenured should be true if the object has been promoted to the old
+ * space during this GC, if the object is copied to survivor space
+ * from young space or survivor space (aging) tenured should be false.
+ *
+ * plab_size is the size of the newly allocated PLAB in bytes.
+ */
+ bool should_report_promotion_events() const;
+ bool should_report_promotion_in_new_plab_event() const;
+ bool should_report_promotion_outside_plab_event() const;
+ void report_promotion_in_new_plab_event(Klass* klass, size_t obj_size,
+ uint age, bool tenured,
+ size_t plab_size) const;
+ void report_promotion_outside_plab_event(Klass* klass, size_t obj_size,
+ uint age, bool tenured) const;
+
+ private:
+ void send_young_gc_event() const;
+ void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;
+ bool should_send_promotion_in_new_plab_event() const;
+ bool should_send_promotion_outside_plab_event() const;
+ void send_promotion_in_new_plab_event(Klass* klass, size_t obj_size,
+ uint age, bool tenured,
+ size_t plab_size) const;
+ void send_promotion_outside_plab_event(Klass* klass, size_t obj_size,
+ uint age, bool tenured) const;
+};
+
+class OldGCTracer : public GCTracer {
+ protected:
+ OldGCTracer(GCName name) : GCTracer(name) {}
+ virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
+
+ public:
+ void report_concurrent_mode_failure();
+
+ private:
+ void send_old_gc_event() const;
+ void send_concurrent_mode_failure_event();
+};
+
+class ParallelOldTracer : public OldGCTracer {
+ ParallelOldGCInfo _parallel_old_gc_info;
+
+ public:
+ ParallelOldTracer() : OldGCTracer(ParallelOld) {}
+ void report_dense_prefix(void* dense_prefix);
+
+ protected:
+ void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
+
+ private:
+ void send_parallel_old_event() const;
+};
+
+class SerialOldTracer : public OldGCTracer {
+ public:
+ SerialOldTracer() : OldGCTracer(SerialOld) {}
+};
+
+class ParallelScavengeTracer : public YoungGCTracer {
+ public:
+ ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}
+};
+
+class DefNewTracer : public YoungGCTracer {
+ public:
+ DefNewTracer() : YoungGCTracer(DefNew) {}
+};
+
+class ParNewTracer : public YoungGCTracer {
+ public:
+ ParNewTracer() : YoungGCTracer(ParNew) {}
+};
+
+#if INCLUDE_ALL_GCS
+class G1MMUTracer : public AllStatic {
+ static void send_g1_mmu_event(double time_slice_ms, double gc_time_ms, double max_time_ms);
+
+ public:
+ static void report_mmu(double time_slice_sec, double gc_time_sec, double max_time_sec);
+};
+
+class G1NewTracer : public YoungGCTracer {
+ G1YoungGCInfo _g1_young_gc_info;
+
+ public:
+ G1NewTracer() : YoungGCTracer(G1New) {}
+
+ void report_yc_type(G1YCType type);
+ void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
+ void report_evacuation_info(EvacuationInfo* info);
+ void report_evacuation_failed(EvacuationFailedInfo& ef_info);
+
+ void report_evacuation_statistics(const G1EvacSummary& young_summary, const G1EvacSummary& old_summary) const;
+
+ void report_basic_ihop_statistics(size_t threshold,
+ size_t target_occupancy,
+ size_t current_occupancy,
+ size_t last_allocation_size,
+ double last_allocation_duration,
+ double last_marking_length);
+ void report_adaptive_ihop_statistics(size_t threshold,
+ size_t internal_target_occupancy,
+ size_t current_occupancy,
+ size_t additional_buffer_size,
+ double predicted_allocation_rate,
+ double predicted_marking_length,
+ bool prediction_active);
+ private:
+ void send_g1_young_gc_event();
+ void send_evacuation_info_event(EvacuationInfo* info);
+ void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;
+
+ void send_young_evacuation_statistics(const G1EvacSummary& summary) const;
+ void send_old_evacuation_statistics(const G1EvacSummary& summary) const;
+
+ void send_basic_ihop_statistics(size_t threshold,
+ size_t target_occupancy,
+ size_t current_occupancy,
+ size_t last_allocation_size,
+ double last_allocation_duration,
+ double last_marking_length);
+ void send_adaptive_ihop_statistics(size_t threshold,
+ size_t internal_target_occupancy,
+ size_t current_occupancy,
+ size_t additional_buffer_size,
+ double predicted_allocation_rate,
+ double predicted_marking_length,
+ bool prediction_active);
+};
+#endif
+
+class CMSTracer : public OldGCTracer {
+ public:
+ CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
+};
+
+class G1OldTracer : public OldGCTracer {
+ protected:
+ void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);
+ public:
+ G1OldTracer() : OldGCTracer(G1Old) {}
+ void set_gc_cause(GCCause::Cause cause);
+};
+
+#endif // SHARE_VM_GC_SHARED_GCTRACE_HPP