8079792: GC directory structure cleanup

Reviewed-by: brutisso, stefank, david

hotspot/src/share/vm/gc/shared/gcTrace.hpp

@@ -0,0 +1,269 @@
+/*
+ * Copyright (c) 2012, 2015, 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 ReferenceProcessorStats;
+class TimePartitions;
+class BoolObjectClosure;
+
+class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
+ private:
+  GCId _gc_id;
+  GCName _name;
+  GCCause::Cause _cause;
+  Ticks     _start_timestamp;
+  Ticks     _end_timestamp;
+  Tickspan  _sum_of_pauses;
+  Tickspan  _longest_pause;
+
+ public:
+  SharedGCInfo(GCName name) :
+    _gc_id(GCId::undefined()),
+    _name(name),
+    _cause(GCCause::_last_gc_cause),
+    _start_timestamp(),
+    _end_timestamp(),
+    _sum_of_pauses(),
+    _longest_pause() {
+  }
+
+  void set_gc_id(GCId gc_id) { _gc_id = gc_id; }
+  const GCId& gc_id() const { return _gc_id; }
+
+  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;
+  bool has_reported_gc_start() const;
+  const GCId& gc_id() { return _shared_gc_info.gc_id(); }
+
+ protected:
+  GCTracer(GCName name) : _shared_gc_info(name) {}
+  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_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 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);
+
+ private:
+  void send_g1_young_gc_event();
+  void send_evacuation_info_event(EvacuationInfo* info);
+  void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;
+};
+#endif
+
+class CMSTracer : public OldGCTracer {
+ public:
+  CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
+};
+
+class G1OldTracer : public OldGCTracer {
+ public:
+  G1OldTracer() : OldGCTracer(G1Old) {}
+};
+
+#endif // SHARE_VM_GC_SHARED_GCTRACE_HPP