rev 4873 : 8015972: Refactor the sending of the object count after GC event

   1 /*
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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  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).
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  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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  24 
  25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP
  26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP
  27 
  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 
  39 typedef uint GCId;
  40 
  41 class EvacuationInfo;
  42 class GCHeapSummary;
  43 class MetaspaceSummary;
  44 class PSHeapSummary;
  45 class ReferenceProcessorStats;
  46 class TimePartitions;
  47 class BoolObjectClosure;
  48 
  49 class SharedGCInfo VALUE_OBJ_CLASS_SPEC {
  50   static const jlong UNSET_TIMESTAMP = -1;
  51 
  52  public:
  53   static const GCId UNSET_GCID = (GCId)-1;
  54 
  55  private:
  56   GCId _id;
  57   GCName _name;
  58   GCCause::Cause _cause;
  59   jlong _start_timestamp;
  60   jlong _end_timestamp;
  61   jlong _sum_of_pauses;
  62   jlong _longest_pause;
  63 
  64  public:
  65   SharedGCInfo(GCName name) : _id(UNSET_GCID), _name(name), _cause(GCCause::_last_gc_cause),
  66       _start_timestamp(UNSET_TIMESTAMP), _end_timestamp(UNSET_TIMESTAMP), _sum_of_pauses(0), _longest_pause(0) {}
  67 
  68   void set_id(GCId id) { _id = id; }
  69   GCId id() const { return _id; }
  70 
  71   void set_start_timestamp(jlong timestamp) { _start_timestamp = timestamp; }
  72   jlong start_timestamp() const { return _start_timestamp; }
  73 
  74   void set_end_timestamp(jlong timestamp) { _end_timestamp = timestamp; }
  75   jlong end_timestamp() const { return _end_timestamp; }
  76 
  77   void set_name(GCName name) { _name = name; }
  78   GCName name() const { return _name; }
  79 
  80   void set_cause(GCCause::Cause cause) { _cause = cause; }
  81   GCCause::Cause cause() const { return _cause; }
  82 
  83   void set_sum_of_pauses(jlong duration) { _sum_of_pauses = duration; }
  84   jlong sum_of_pauses() const { return _sum_of_pauses; }
  85 
  86   void set_longest_pause(jlong duration) { _longest_pause = duration; }
  87   jlong longest_pause() const { return _longest_pause; }
  88 };
  89 
  90 class ParallelOldGCInfo VALUE_OBJ_CLASS_SPEC {
  91   void* _dense_prefix;
  92  public:
  93   ParallelOldGCInfo() : _dense_prefix(NULL) {}
  94   void report_dense_prefix(void* addr) {
  95     _dense_prefix = addr;
  96   }
  97   void* dense_prefix() const { return _dense_prefix; }
  98 };
  99 
 100 #if INCLUDE_ALL_GCS
 101 
 102 class G1YoungGCInfo VALUE_OBJ_CLASS_SPEC {
 103   G1YCType _type;
 104  public:
 105   G1YoungGCInfo() : _type(G1YCTypeEndSentinel) {}
 106   void set_type(G1YCType type) {
 107     _type = type;
 108   }
 109   G1YCType type() const { return _type; }
 110 };
 111 
 112 #endif // INCLUDE_ALL_GCS
 113 
 114 class GCTracer : public ResourceObj {

 115  protected:
 116   SharedGCInfo _shared_gc_info;
 117 
 118  public:
 119   void report_gc_start(GCCause::Cause cause, jlong timestamp);
 120   void report_gc_end(jlong timestamp, TimePartitions* time_partitions);
 121   void report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const MetaspaceSummary& meta_space_summary) const;
 122   void report_gc_reference_stats(const ReferenceProcessorStats& rp) const;
 123   void report_object_count_after_gc(BoolObjectClosure* object_filter) NOT_SERVICES_RETURN;

 124   bool has_reported_gc_start() const;
 125 
 126  protected:
 127   GCTracer(GCName name) : _shared_gc_info(name) {}
 128   virtual void report_gc_start_impl(GCCause::Cause cause, jlong timestamp);
 129   virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
 130 
 131  private:
 132   void send_garbage_collection_event() const;
 133   void send_gc_heap_summary_event(GCWhen::Type when, const GCHeapSummary& heap_summary) const;
 134   void send_meta_space_summary_event(GCWhen::Type when, const MetaspaceSummary& meta_space_summary) const;
 135   void send_reference_stats_event(ReferenceType type, size_t count) const;
 136   void send_phase_events(TimePartitions* time_partitions) const;



















 137 };
 138 
 139 class YoungGCTracer : public GCTracer {
 140   static const uint UNSET_TENURING_THRESHOLD = (uint) -1;
 141 
 142   uint _tenuring_threshold;
 143 
 144  protected:
 145   YoungGCTracer(GCName name) : GCTracer(name), _tenuring_threshold(UNSET_TENURING_THRESHOLD) {}
 146   virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
 147 
 148  public:
 149   void report_promotion_failed(const PromotionFailedInfo& pf_info);
 150   void report_tenuring_threshold(const uint tenuring_threshold);
 151 
 152  private:
 153   void send_young_gc_event() const;
 154   void send_promotion_failed_event(const PromotionFailedInfo& pf_info) const;
 155 };
 156 
 157 class OldGCTracer : public GCTracer {
 158  protected:
 159   OldGCTracer(GCName name) : GCTracer(name) {}
 160   virtual void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
 161 
 162  public:
 163   void report_concurrent_mode_failure();
 164 
 165  private:
 166   void send_old_gc_event() const;
 167   void send_concurrent_mode_failure_event();
 168 };
 169 
 170 class ParallelOldTracer : public OldGCTracer {
 171   ParallelOldGCInfo _parallel_old_gc_info;
 172 
 173  public:
 174   ParallelOldTracer() : OldGCTracer(ParallelOld) {}
 175   void report_dense_prefix(void* dense_prefix);
 176 
 177  protected:
 178   void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
 179 
 180  private:
 181   void send_parallel_old_event() const;
 182 };
 183 
 184 class SerialOldTracer : public OldGCTracer {
 185  public:
 186   SerialOldTracer() : OldGCTracer(SerialOld) {}
 187 };
 188 
 189 class ParallelScavengeTracer : public YoungGCTracer {
 190  public:
 191   ParallelScavengeTracer() : YoungGCTracer(ParallelScavenge) {}
 192 };
 193 
 194 class DefNewTracer : public YoungGCTracer {
 195  public:
 196   DefNewTracer() : YoungGCTracer(DefNew) {}
 197 };
 198 
 199 class ParNewTracer : public YoungGCTracer {
 200  public:
 201   ParNewTracer() : YoungGCTracer(ParNew) {}
 202 };
 203 
 204 #if INCLUDE_ALL_GCS
 205 class G1NewTracer : public YoungGCTracer {
 206   G1YoungGCInfo _g1_young_gc_info;
 207 
 208  public:
 209   G1NewTracer() : YoungGCTracer(G1New) {}
 210 
 211   void report_yc_type(G1YCType type);
 212   void report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions);
 213   void report_evacuation_info(EvacuationInfo* info);
 214   void report_evacuation_failed(EvacuationFailedInfo& ef_info);
 215 
 216  private:
 217   void send_g1_young_gc_event();
 218   void send_evacuation_info_event(EvacuationInfo* info);
 219   void send_evacuation_failed_event(const EvacuationFailedInfo& ef_info) const;
 220 };
 221 #endif
 222 
 223 class CMSTracer : public OldGCTracer {
 224  public:
 225   CMSTracer() : OldGCTracer(ConcurrentMarkSweep) {}
 226 };
 227 
 228 class G1OldTracer : public OldGCTracer {
 229  public:
 230   G1OldTracer() : OldGCTracer(G1Old) {}
 231 };
 232 
 233 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCTRACE_HPP
--- EOF ---