src/share/vm/gc_implementation/shared/gcTrace.hpp

Wed, 27 Apr 2016 01:25:04 +0800

author
aoqi
date
Wed, 27 Apr 2016 01:25:04 +0800
changeset 0
f90c822e73f8
child 6876
710a3c8b516e
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changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

     1 /*
     2  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     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  */
    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP
    26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP
    28 #include "gc_interface/gcCause.hpp"
    29 #include "gc_interface/gcName.hpp"
    30 #include "gc_implementation/shared/gcWhen.hpp"
    31 #include "gc_implementation/shared/copyFailedInfo.hpp"
    32 #include "memory/allocation.hpp"
    33 #include "memory/metaspace.hpp"
    34 #include "memory/referenceType.hpp"
    35 #if INCLUDE_ALL_GCS
    36 #include "gc_implementation/g1/g1YCTypes.hpp"
    37 #endif
    38 #include "utilities/macros.hpp"
    39 #include "utilities/ticks.hpp"
    41 typedef uint GCId;
    43 class EvacuationInfo;
    44 class GCHeapSummary;
    45 class MetaspaceChunkFreeListSummary;
    46 class MetaspaceSummary;
    47 class PSHeapSummary;
    48 class ReferenceProcessorStats;
    49 class TimePartitions;
    50 class BoolObjectClosure;
    52 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
    53  public:
    54   static const GCId UNSET_GCID = (GCId)-1;
    56  private:
    57   GCId _id;
    58   GCName _name;
    59   GCCause::Cause _cause;
    60   Ticks     _start_timestamp;
    61   Ticks     _end_timestamp;
    62   Tickspan  _sum_of_pauses;
    63   Tickspan  _longest_pause;
    65  public:
    66   SharedGCInfo(GCName name) :
    67     _id(UNSET_GCID),
    68     _name(name),
    69     _cause(GCCause::_last_gc_cause),
    70     _start_timestamp(),
    71     _end_timestamp(),
    72     _sum_of_pauses(),
    73     _longest_pause() {
    74   }
    76   void set_id(GCId id) { _id = id; }
    77   GCId id() const { return _id; }
    79   void set_start_timestamp(const Ticks& timestamp) { _start_timestamp = timestamp; }
    80   const Ticks start_timestamp() const { return _start_timestamp; }
    82   void set_end_timestamp(const Ticks& timestamp) { _end_timestamp = timestamp; }
    83   const Ticks end_timestamp() const { return _end_timestamp; }
    85   void set_name(GCName name) { _name = name; }
    86   GCName name() const { return _name; }
    88   void set_cause(GCCause::Cause cause) { _cause = cause; }
    89   GCCause::Cause cause() const { return _cause; }
    91   void set_sum_of_pauses(const Tickspan& duration) { _sum_of_pauses = duration; }
    92   const Tickspan sum_of_pauses() const { return _sum_of_pauses; }
    94   void set_longest_pause(const Tickspan& duration) { _longest_pause = duration; }
    95   const Tickspan longest_pause() const { return _longest_pause; }
    96 };
    98 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {
    99   void* _dense_prefix;
   100  public:
   101   ParallelOldGCInfo() : _dense_prefix(NULL) {}
   102   void report_dense_prefix(void* addr) {
   103     _dense_prefix = addr;
   104   }
   105   void* dense_prefix() const { return _dense_prefix; }
   106 };
   108 #if INCLUDE_ALL_GCS
   110 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {
   111   G1YCType _type;
   112  public:
   113   G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
   114   void set_type(G1YCType type) {
   115     _type = type;
   116   }
   117   G1YCType type() const { return _type; }
   118 };
   120 #endif // INCLUDE_ALL_GCS
   122 class GCTracer : public ResourceObj {
   123  protected:
   124   SharedGCInfo _shared_gc_info;
   126  public:
   127   void report_gc_start(GCCause::Cause cause, const Ticks& timestamp);
   128   void report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions);
   129   void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
   130   void report_metaspace_summary(GCWhen::Type when, const MetaspaceSummary& metaspace_summary) const;
   131   void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
   132   void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;
   133   bool has_reported_gc_start() const;
   135  protected:
   136   GCTracer(GCName name) : _shared_gc_info(name) {}
   137   virtual void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);
   138   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
   140  private:
   141   void send_garbage_collection_event() const;
   142   void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
   143   void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const;
   144   void send_metaspace_chunk_free_list_summary(GCWhen::Type when, Metaspace::MetadataType mdtype, const MetaspaceChunkFreeListSummary& summary) const;
   145   void send_reference_stats_event(ReferenceType type, size_t count) const;
   146   void send_phase_events(TimePartitions* time_partitions) const;
   147 };
   149 class YoungGCTracer : public GCTracer {
   150   static const uint UNSET_TENURING_THRESHOLD = (uint) -1;
   152   uint _tenuring_threshold;
   154  protected:
   155   YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {}
   156   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
   158  public:
   159   void report_promotion_failed(const PromotionFailedInfo& pf_info);
   160   void report_tenuring_threshold(const uint tenuring_threshold);
   162  private:
   163   void send_young_gc_event() const;
   164   void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;
   165 };
   167 class OldGCTracer : public GCTracer {
   168  protected:
   169   OldGCTracer(GCName name) : GCTracer(name) {}
   170   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
   172  public:
   173   void report_concurrent_mode_failure();
   175  private:
   176   void send_old_gc_event() const;
   177   void send_concurrent_mode_failure_event();
   178 };
   180 class ParallelOldTracer : public OldGCTracer {
   181   ParallelOldGCInfo _parallel_old_gc_info;
   183  public:
   184   ParallelOldTracer() : OldGCTracer(ParallelOld) {}
   185   void report_dense_prefix(void* dense_prefix);
   187  protected:
   188   void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
   190  private:
   191   void send_parallel_old_event() const;
   192 };
   194 class SerialOldTracer : public OldGCTracer {
   195  public:
   196   SerialOldTracer() : OldGCTracer(SerialOld) {}
   197 };
   199 class ParallelScavengeTracer : public YoungGCTracer {
   200  public:
   201   ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}
   202 };
   204 class DefNewTracer : public YoungGCTracer {
   205  public:
   206   DefNewTracer() : YoungGCTracer(DefNew) {}
   207 };
   209 class ParNewTracer : public YoungGCTracer {
   210  public:
   211   ParNewTracer() : YoungGCTracer(ParNew) {}
   212 };
   214 #if INCLUDE_ALL_GCS
   215 class G1NewTracer : public YoungGCTracer {
   216   G1YoungGCInfo _g1_young_gc_info;
   218  public:
   219   G1NewTracer() : YoungGCTracer(G1New) {}
   221   void report_yc_type(G1YCType type);
   222   void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);
   223   void report_evacuation_info(EvacuationInfo* info);
   224   void report_evacuation_failed(EvacuationFailedInfo& ef_info);
   226  private:
   227   void send_g1_young_gc_event();
   228   void send_evacuation_info_event(EvacuationInfo* info);
   229   void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;
   230 };
   231 #endif
   233 class CMSTracer : public OldGCTracer {
   234  public:
   235   CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
   236 };
   238 class G1OldTracer : public OldGCTracer {
   239  public:
   240   G1OldTracer() : OldGCTracer(G1Old) {}
   241 };
   243 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP

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