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

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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).
  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  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc_implementation/shared/gcHeapSummary.hpp"
  27 #include "gc_implementation/shared/gcTimer.hpp"
  28 #include "gc_implementation/shared/gcTrace.hpp"
  29 #include "gc_implementation/shared/promotionFailedInfo.hpp"


  30 #include "memory/referenceProcessorStats.hpp"
  31 #include "utilities/globalDefinitions.hpp"
  32 
  33 #define assert_unset_gc_id() assert(_shared_gc_info.id() == SharedGCInfo::UNSET_GCID, "GC already started?")
  34 #define assert_set_gc_id() assert(_shared_gc_info.id() != SharedGCInfo::UNSET_GCID, "GC not started?")
  35 
  36 static jlong GCTracer_next_gc_id = 0;
  37 static GCId create_new_gc_id() {
  38   return GCTracer_next_gc_id++;
  39 }
  40 
  41 void GCTracer::report_gc_start_impl(GCCause::Cause cause, jlong timestamp) {
  42   assert_unset_gc_id();
  43 
  44   GCId gc_id = create_new_gc_id();
  45   _shared_gc_info.set_id(gc_id);
  46   _shared_gc_info.set_cause(cause);
  47   _shared_gc_info.set_start_timestamp(timestamp);
  48 }
  49 


  66 
  67   send_phase_events(time_partitions);
  68   send_garbage_collection_event();
  69 }
  70 
  71 void GCTracer::report_gc_end(jlong timestamp, TimePartitions* time_partitions) {
  72   assert_set_gc_id();
  73 
  74   report_gc_end_impl(timestamp, time_partitions);
  75 
  76   _shared_gc_info.set_id(SharedGCInfo::UNSET_GCID);
  77 }
  78 
  79 void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const {
  80   assert_set_gc_id();
  81 
  82   send_reference_stats_event(REF_SOFT, rps.soft_count());
  83   send_reference_stats_event(REF_WEAK, rps.weak_count());
  84   send_reference_stats_event(REF_FINAL, rps.final_count());
  85   send_reference_stats_event(REF_PHANTOM, rps.phantom_count());























  86 }
  87 
  88 void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const PermGenSummary& perm_gen_summary) const {
  89   assert_set_gc_id();
  90 
  91   send_gc_heap_summary_event(when, heap_summary);
  92   send_perm_gen_summary_event(when, perm_gen_summary);
  93 }
  94 
  95 void YoungGCTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) {
  96   assert_set_gc_id();
  97 
  98   GCTracer::report_gc_end_impl(timestamp, time_partitions);
  99   send_young_gc_event();
 100 }
 101 
 102 void YoungGCTracer::report_promotion_failed(const PromotionFailedInfo& pf_info) {
 103   assert_set_gc_id();
 104 
 105   send_promotion_failed_event(pf_info);




  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  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc_implementation/shared/gcHeapSummary.hpp"
  27 #include "gc_implementation/shared/gcTimer.hpp"
  28 #include "gc_implementation/shared/gcTrace.hpp"
  29 #include "gc_implementation/shared/promotionFailedInfo.hpp"
  30 #include "memory/heapInspection.hpp"
  31 #include "memory/iterator.hpp"
  32 #include "memory/referenceProcessorStats.hpp"
  33 #include "utilities/globalDefinitions.hpp"
  34 
  35 #define assert_unset_gc_id() assert(_shared_gc_info.id() == SharedGCInfo::UNSET_GCID, "GC already started?")
  36 #define assert_set_gc_id() assert(_shared_gc_info.id() != SharedGCInfo::UNSET_GCID, "GC not started?")
  37 
  38 static jlong GCTracer_next_gc_id = 0;
  39 static GCId create_new_gc_id() {
  40   return GCTracer_next_gc_id++;
  41 }
  42 
  43 void GCTracer::report_gc_start_impl(GCCause::Cause cause, jlong timestamp) {
  44   assert_unset_gc_id();
  45 
  46   GCId gc_id = create_new_gc_id();
  47   _shared_gc_info.set_id(gc_id);
  48   _shared_gc_info.set_cause(cause);
  49   _shared_gc_info.set_start_timestamp(timestamp);
  50 }
  51 


  68 
  69   send_phase_events(time_partitions);
  70   send_garbage_collection_event();
  71 }
  72 
  73 void GCTracer::report_gc_end(jlong timestamp, TimePartitions* time_partitions) {
  74   assert_set_gc_id();
  75 
  76   report_gc_end_impl(timestamp, time_partitions);
  77 
  78   _shared_gc_info.set_id(SharedGCInfo::UNSET_GCID);
  79 }
  80 
  81 void GCTracer::report_gc_reference_stats(const ReferenceProcessorStats& rps) const {
  82   assert_set_gc_id();
  83 
  84   send_reference_stats_event(REF_SOFT, rps.soft_count());
  85   send_reference_stats_event(REF_WEAK, rps.weak_count());
  86   send_reference_stats_event(REF_FINAL, rps.final_count());
  87   send_reference_stats_event(REF_PHANTOM, rps.phantom_count());
  88 }
  89 
  90 class ObjectCountEventSenderClosure : public KlassInfoClosure {
  91   GCTracer* _gc_tracer;
  92  public:
  93   ObjectCountEventSenderClosure(GCTracer* gc_tracer) : _gc_tracer(gc_tracer) {}
  94  private:
  95   void do_cinfo(KlassInfoEntry* entry) {
  96     _gc_tracer->send_object_count_after_gc_event(entry->klass(), entry->count(),
  97                                                  entry->words() * BytesPerWord);
  98   }
  99 };
 100 
 101 void GCTracer::report_object_count_after_gc(BoolObjectClosure *is_alive_cl) {
 102   if (should_send_object_count_after_gc_event()) {
 103     ResourceMark rm;
 104 
 105     KlassInfoTable cit(HeapInspection::start_of_perm_gen());
 106     if (!cit.allocation_failed()) {
 107       ObjectCountEventSenderClosure event_sender(this);
 108       HeapInspection::instance_inspection(&cit, &event_sender, false, is_alive_cl);
 109     }
 110   }
 111 }
 112 
 113 void GCTracer::report_gc_heap_summary(GCWhen::Type when, const GCHeapSummary& heap_summary, const PermGenSummary& perm_gen_summary) const {
 114   assert_set_gc_id();
 115 
 116   send_gc_heap_summary_event(when, heap_summary);
 117   send_perm_gen_summary_event(when, perm_gen_summary);
 118 }
 119 
 120 void YoungGCTracer::report_gc_end_impl(jlong timestamp, TimePartitions* time_partitions) {
 121   assert_set_gc_id();
 122 
 123   GCTracer::report_gc_end_impl(timestamp, time_partitions);
 124   send_young_gc_event();
 125 }
 126 
 127 void YoungGCTracer::report_promotion_failed(const PromotionFailedInfo& pf_info) {
 128   assert_set_gc_id();
 129 
 130   send_promotion_failed_event(pf_info);