jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/shared/gcTrace.hpp@595c0f60d50d

8029075: String deduplication in G1
Summary: Implementation of JEP 192, http://openjdk.java.net/jeps/192
Reviewed-by: brutisso, tschatzl, coleenp

     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/referenceType.hpp"

    34 #if INCLUDE_ALL_GCS

    35 #include "gc_implementation/g1/g1YCTypes.hpp"

    36 #endif

    37 #include "utilities/macros.hpp"

    38 #include "utilities/ticks.hpp"

    40 typedef uint GCId;

    42 class EvacuationInfo;

    43 class GCHeapSummary;

    44 class MetaspaceSummary;

    45 class PSHeapSummary;

    46 class ReferenceProcessorStats;

    47 class TimePartitions;

    48 class BoolObjectClosure;

    50 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {

    51  public:

    52   static const GCId UNSET_GCID = (GCId)-1;

    54  private:

    55   GCId _id;

    56   GCName _name;

    57   GCCause::Cause _cause;

    58   Ticks     _start_timestamp;

    59   Ticks     _end_timestamp;

    60   Tickspan  _sum_of_pauses;

    61   Tickspan  _longest_pause;

    63  public:

    64   SharedGCInfo(GCName name) :

    65     _id(UNSET_GCID),

    66     _name(name),

    67     _cause(GCCause::_last_gc_cause),

    68     _start_timestamp(),

    69     _end_timestamp(),

    70     _sum_of_pauses(),

    71     _longest_pause() {

    72   }

    74   void set_id(GCId id) { _id = id; }

    75   GCId id() const { return _id; }

    77   void set_start_timestamp(const Ticks& timestamp) { _start_timestamp = timestamp; }

    78   const Ticks start_timestamp() const { return _start_timestamp; }

    80   void set_end_timestamp(const Ticks& timestamp) { _end_timestamp = timestamp; }

    81   const Ticks end_timestamp() const { return _end_timestamp; }

    83   void set_name(GCName name) { _name = name; }

    84   GCName name() const { return _name; }

    86   void set_cause(GCCause::Cause cause) { _cause = cause; }

    87   GCCause::Cause cause() const { return _cause; }

    89   void set_sum_of_pauses(const Tickspan& duration) { _sum_of_pauses = duration; }

    90   const Tickspan sum_of_pauses() const { return _sum_of_pauses; }

    92   void set_longest_pause(const Tickspan& duration) { _longest_pause = duration; }

    93   const Tickspan longest_pause() const { return _longest_pause; }

    94 };

    96 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {

    97   void* _dense_prefix;

    98  public:

    99   ParallelOldGCInfo() : _dense_prefix(NULL) {}

   100   void report_dense_prefix(void* addr) {

   101     _dense_prefix = addr;

   102   }

   103   void* dense_prefix() const { return _dense_prefix; }

   104 };

   106 #if INCLUDE_ALL_GCS

   108 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {

   109   G1YCType _type;

   110  public:

   111   G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}

   112   void set_type(G1YCType type) {

   113     _type = type;

   114   }

   115   G1YCType type() const { return _type; }

   116 };

   118 #endif // INCLUDE_ALL_GCS

   120 class GCTracer : public ResourceObj {

   121  protected:

   122   SharedGCInfo _shared_gc_info;

   124  public:

   125   void report_gc_start(GCCause::Cause cause, const Ticks& timestamp);

   126   void report_gc_end(const Ticks& timestamp, TimePartitions* time_partitions);

   127   void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const MetaspaceSummary& meta_space_summary) const;

   128   void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;

   129   void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;

   130   bool has_reported_gc_start() const;

   132  protected:

   133   GCTracer(GCName name) : _shared_gc_info(name) {}

   134   virtual void report_gc_start_impl(GCCause::Cause cause, const Ticks& timestamp);

   135   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);

   137  private:

   138   void send_garbage_collection_event() const;

   139   void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;

   140   void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const;

   141   void send_reference_stats_event(ReferenceType type, size_t count) const;

   142   void send_phase_events(TimePartitions* time_partitions) const;

   143 };

   145 class YoungGCTracer : public GCTracer {

   146   static const uint UNSET_TENURING_THRESHOLD = (uint) -1;

   148   uint _tenuring_threshold;

   150  protected:

   151   YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {}

   152   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);

   154  public:

   155   void report_promotion_failed(const PromotionFailedInfo& pf_info);

   156   void report_tenuring_threshold(const uint tenuring_threshold);

   158  private:

   159   void send_young_gc_event() const;

   160   void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;

   161 };

   163 class OldGCTracer : public GCTracer {

   164  protected:

   165   OldGCTracer(GCName name) : GCTracer(name) {}

   166   virtual void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);

   168  public:

   169   void report_concurrent_mode_failure();

   171  private:

   172   void send_old_gc_event() const;

   173   void send_concurrent_mode_failure_event();

   174 };

   176 class ParallelOldTracer : public OldGCTracer {

   177   ParallelOldGCInfo _parallel_old_gc_info;

   179  public:

   180   ParallelOldTracer() : OldGCTracer(ParallelOld) {}

   181   void report_dense_prefix(void* dense_prefix);

   183  protected:

   184   void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);

   186  private:

   187   void send_parallel_old_event() const;

   188 };

   190 class SerialOldTracer : public OldGCTracer {

   191  public:

   192   SerialOldTracer() : OldGCTracer(SerialOld) {}

   193 };

   195 class ParallelScavengeTracer : public YoungGCTracer {

   196  public:

   197   ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}

   198 };

   200 class DefNewTracer : public YoungGCTracer {

   201  public:

   202   DefNewTracer() : YoungGCTracer(DefNew) {}

   203 };

   205 class ParNewTracer : public YoungGCTracer {

   206  public:

   207   ParNewTracer() : YoungGCTracer(ParNew) {}

   208 };

   210 #if INCLUDE_ALL_GCS

   211 class G1NewTracer : public YoungGCTracer {

   212   G1YoungGCInfo _g1_young_gc_info;

   214  public:

   215   G1NewTracer() : YoungGCTracer(G1New) {}

   217   void report_yc_type(G1YCType type);

   218   void report_gc_end_impl(const Ticks& timestamp, TimePartitions* time_partitions);

   219   void report_evacuation_info(EvacuationInfo* info);

   220   void report_evacuation_failed(EvacuationFailedInfo& ef_info);

   222  private:

   223   void send_g1_young_gc_event();

   224   void send_evacuation_info_event(EvacuationInfo* info);

   225   void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;

   226 };

   227 #endif

   229 class CMSTracer : public OldGCTracer {

   230  public:

   231   CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}

   232 };

   234 class G1OldTracer : public OldGCTracer {

   235  public:

   236   G1OldTracer() : OldGCTracer(G1Old) {}

   237 };

   239 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/shared/gcTrace.hpp@595c0f60d50d

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