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src/hotspot/share/gc/shenandoah/shenandoahUtils.cpp

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 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 
 27 #include "jfr/jfrEvents.hpp"
 28 #include "gc/shared/gcCause.hpp"
 29 #include "gc/shared/gcTrace.hpp"
 30 #include "gc/shared/gcWhen.hpp"
 31 #include "gc/shared/referenceProcessorStats.hpp"
 32 #include "gc/shenandoah/heuristics/shenandoahHeuristics.hpp"
 33 #include "gc/shenandoah/shenandoahCollectorPolicy.hpp"

 34 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
 35 #include "gc/shenandoah/shenandoahReferenceProcessor.hpp"
 36 #include "gc/shenandoah/shenandoahUtils.hpp"

 37 #include "utilities/debug.hpp"
 38 
 39 ShenandoahPhaseTimings::Phase ShenandoahTimingsTracker::_current_phase = ShenandoahPhaseTimings::_invalid_phase;
 40 
 41 ShenandoahGCSession::ShenandoahGCSession(GCCause::Cause cause) :
 42   _heap(ShenandoahHeap::heap()),

 43   _timer(_heap->gc_timer()),
 44   _tracer(_heap->tracer()) {
 45   assert(!ShenandoahGCPhase::is_current_phase_valid(), "No current GC phase");
 46 
 47   _heap->set_gc_cause(cause);

 48   _timer->register_gc_start();
 49   _tracer->report_gc_start(cause, _timer->gc_start());
 50   _heap->trace_heap_before_gc(_tracer);
 51 
 52   _heap->shenandoah_policy()->record_cycle_start();
 53   _heap->heuristics()->record_cycle_start();
 54   _trace_cycle.initialize(_heap->cycle_memory_manager(), cause,
 55           /* allMemoryPoolsAffected */    true,
 56           /* recordGCBeginTime = */       true,
 57           /* recordPreGCUsage = */        true,
 58           /* recordPeakUsage = */         true,
 59           /* recordPostGCUsage = */       true,
 60           /* recordAccumulatedGCTime = */ true,
 61           /* recordGCEndTime = */         true,
 62           /* countCollection = */         true
 63   );
 64 }
 65 

 66 ShenandoahGCSession::~ShenandoahGCSession() {
 67   _heap->heuristics()->record_cycle_end();







 68   _timer->register_gc_end();
 69   _heap->trace_heap_after_gc(_tracer);
 70   _tracer->report_gc_reference_stats(_heap->ref_processor()->reference_process_stats());
 71   _tracer->report_gc_end(_timer->gc_end(), _timer->time_partitions());
 72   assert(!ShenandoahGCPhase::is_current_phase_valid(), "No current GC phase");
 73   _heap->set_gc_cause(GCCause::_no_gc);
 74 }
 75 
 76 ShenandoahGCPauseMark::ShenandoahGCPauseMark(uint gc_id, SvcGCMarker::reason_type type) :
 77   _heap(ShenandoahHeap::heap()), _gc_id_mark(gc_id), _svc_gc_mark(type), _is_gc_active_mark() {
 78   _trace_pause.initialize(_heap->stw_memory_manager(), _heap->gc_cause(),
 79           /* allMemoryPoolsAffected */    true,
 80           /* recordGCBeginTime = */       true,
 81           /* recordPreGCUsage = */        false,
 82           /* recordPeakUsage = */         false,
 83           /* recordPostGCUsage = */       false,
 84           /* recordAccumulatedGCTime = */ true,
 85           /* recordGCEndTime = */         true,
 86           /* countCollection = */         true
 87   );
 88 }
 89 
 90 ShenandoahPausePhase::ShenandoahPausePhase(const char* title, ShenandoahPhaseTimings::Phase phase, bool log_heap_usage) :

 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 
 27 #include "jfr/jfrEvents.hpp"
 28 #include "gc/shared/gcCause.hpp"
 29 #include "gc/shared/gcTrace.hpp"
 30 #include "gc/shared/gcWhen.hpp"
 31 #include "gc/shared/referenceProcessorStats.hpp"
 32 #include "gc/shenandoah/heuristics/shenandoahHeuristics.hpp"
 33 #include "gc/shenandoah/shenandoahCollectorPolicy.hpp"
 34 #include "gc/shenandoah/shenandoahGeneration.hpp"
 35 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
 36 #include "gc/shenandoah/shenandoahReferenceProcessor.hpp"
 37 #include "gc/shenandoah/shenandoahUtils.hpp"
 38 #include "gc/shenandoah/shenandoahYoungGeneration.hpp"
 39 #include "utilities/debug.hpp"
 40 
 41 ShenandoahPhaseTimings::Phase ShenandoahTimingsTracker::_current_phase = ShenandoahPhaseTimings::_invalid_phase;
 42 
 43 ShenandoahGCSession::ShenandoahGCSession(GCCause::Cause cause, ShenandoahGeneration* generation) :
 44   _heap(ShenandoahHeap::heap()),
 45   _generation(generation),
 46   _timer(_heap->gc_timer()),
 47   _tracer(_heap->tracer()) {
 48   assert(!ShenandoahGCPhase::is_current_phase_valid(), "No current GC phase");
 49 
 50   _heap->set_gc_cause(cause);
 51   _heap->set_gc_generation(generation);
 52   _timer->register_gc_start();
 53   _tracer->report_gc_start(cause, _timer->gc_start());
 54   _heap->trace_heap_before_gc(_tracer);
 55 
 56   _heap->shenandoah_policy()->record_cycle_start();
 57   generation->heuristics()->record_cycle_start();
 58   _trace_cycle.initialize(_heap->cycle_memory_manager(), cause,
 59           /* allMemoryPoolsAffected */    true,
 60           /* recordGCBeginTime = */       true,
 61           /* recordPreGCUsage = */        true,
 62           /* recordPeakUsage = */         true,
 63           /* recordPostGCUsage = */       true,
 64           /* recordAccumulatedGCTime = */ true,
 65           /* recordGCEndTime = */         true,
 66           /* countCollection = */         true
 67   );
 68 }
 69 
 70 
 71 ShenandoahGCSession::~ShenandoahGCSession() {
 72 
 73   _generation->heuristics()->record_cycle_end();
 74   if (_heap->mode()->is_generational() &&
 75       ((_generation->generation_mode() == GLOBAL) || _heap->upgraded_to_full())) {
 76     // If we just completed a GLOBAL GC, claim credit for completion of young-gen and old-gen GC as well
 77     _heap->young_generation()->heuristics()->record_cycle_end();
 78     _heap->old_generation()->heuristics()->record_cycle_end();
 79   }
 80   _timer->register_gc_end();
 81   _heap->trace_heap_after_gc(_tracer);
 82   _tracer->report_gc_reference_stats(_generation->ref_processor()->reference_process_stats());
 83   _tracer->report_gc_end(_timer->gc_end(), _timer->time_partitions());
 84   assert(!ShenandoahGCPhase::is_current_phase_valid(), "No current GC phase");
 85   _heap->set_gc_cause(GCCause::_no_gc);
 86 }
 87 
 88 ShenandoahGCPauseMark::ShenandoahGCPauseMark(uint gc_id, SvcGCMarker::reason_type type) :
 89   _heap(ShenandoahHeap::heap()), _gc_id_mark(gc_id), _svc_gc_mark(type), _is_gc_active_mark() {
 90   _trace_pause.initialize(_heap->stw_memory_manager(), _heap->gc_cause(),
 91           /* allMemoryPoolsAffected */    true,
 92           /* recordGCBeginTime = */       true,
 93           /* recordPreGCUsage = */        false,
 94           /* recordPeakUsage = */         false,
 95           /* recordPostGCUsage = */       false,
 96           /* recordAccumulatedGCTime = */ true,
 97           /* recordGCEndTime = */         true,
 98           /* countCollection = */         true
 99   );
100 }
101 
102 ShenandoahPausePhase::ShenandoahPausePhase(const char* title, ShenandoahPhaseTimings::Phase phase, bool log_heap_usage) :
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