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

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  1 /*
  2  * Copyright (c) 2017, 2021, Red Hat, Inc. 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  */
 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           "end of GC cycle",
 56           /* allMemoryPoolsAffected */    true,
 57           /* recordGCBeginTime = */       true,
 58           /* recordPreGCUsage = */        true,
 59           /* recordPeakUsage = */         true,
 60           /* recordPostGCUsage = */       true,
 61           /* recordAccumulatedGCTime = */ true,
 62           /* recordGCEndTime = */         true,
 63           /* countCollection = */         true
 64   );
 65 }
 66 
 67 ShenandoahGCSession::~ShenandoahGCSession() {
 68   _heap->heuristics()->record_cycle_end();
 69   _timer->register_gc_end();
 70   _heap->trace_heap_after_gc(_tracer);
 71   _tracer->report_gc_reference_stats(_heap->ref_processor()->reference_process_stats());
 72   _tracer->report_gc_end(_timer->gc_end(), _timer->time_partitions());
 73   assert(!ShenandoahGCPhase::is_current_phase_valid(), "No current GC phase");
 74   _heap->set_gc_cause(GCCause::_no_gc);
 75 }
 76 
 77 ShenandoahGCPauseMark::ShenandoahGCPauseMark(uint gc_id, const char* notification_message, SvcGCMarker::reason_type type) :
 78   _heap(ShenandoahHeap::heap()), _gc_id_mark(gc_id), _svc_gc_mark(type), _is_gc_active_mark() {
 79   _trace_pause.initialize(_heap->stw_memory_manager(), _heap->gc_cause(),
 80           notification_message,
 81           /* allMemoryPoolsAffected */    true,
 82           /* recordGCBeginTime = */       true,
 83           /* recordPreGCUsage = */        false,
 84           /* recordPeakUsage = */         false,
 85           /* recordPostGCUsage = */       false,
 86           /* recordAccumulatedGCTime = */ true,
 87           /* recordGCEndTime = */         true,
 88           /* countCollection = */         true
 89   );
 90 }
 91 
 92 ShenandoahPausePhase::ShenandoahPausePhase(const char* title, ShenandoahPhaseTimings::Phase phase, bool log_heap_usage) :
 93   ShenandoahTimingsTracker(phase),
 94   _tracer(title, nullptr, GCCause::_no_gc, log_heap_usage),

  1 /*
  2  * Copyright (c) 2017, 2021, Red Hat, Inc. All rights reserved.
  3  * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
  4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  5  *
  6  * This code is free software; you can redistribute it and/or modify it
  7  * under the terms of the GNU General Public License version 2 only, as
  8  * published by the Free Software Foundation.
  9  *
 10  * This code is distributed in the hope that it will be useful, but WITHOUT
 11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 13  * version 2 for more details (a copy is included in the LICENSE file that
 14  * accompanied this code).
 15  *
 16  * You should have received a copy of the GNU General Public License version
 17  * 2 along with this work; if not, write to the Free Software Foundation,
 18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 19  *
 20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 21  * or visit www.oracle.com if you need additional information or have any
 22  * questions.
 23  *
 24  */
 25 
 26 #include "precompiled.hpp"
 27 
 28 #include "jfr/jfrEvents.hpp"
 29 #include "gc/shared/gcCause.hpp"
 30 #include "gc/shared/gcTrace.hpp"
 31 #include "gc/shared/gcWhen.hpp"
 32 #include "gc/shared/referenceProcessorStats.hpp"
 33 #include "gc/shenandoah/heuristics/shenandoahHeuristics.hpp"
 34 #include "gc/shenandoah/shenandoahCollectorPolicy.hpp"
 35 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
 36 #include "gc/shenandoah/shenandoahOldGeneration.hpp"
 37 #include "gc/shenandoah/shenandoahReferenceProcessor.hpp"
 38 #include "gc/shenandoah/shenandoahUtils.hpp"
 39 #include "gc/shenandoah/shenandoahYoungGeneration.hpp"
 40 #include "utilities/debug.hpp"
 41 
 42 ShenandoahPhaseTimings::Phase ShenandoahTimingsTracker::_current_phase = ShenandoahPhaseTimings::_invalid_phase;
 43 
 44 ShenandoahGCSession::ShenandoahGCSession(GCCause::Cause cause, ShenandoahGeneration* generation) :
 45   _heap(ShenandoahHeap::heap()),
 46   _generation(generation),
 47   _timer(_heap->gc_timer()),
 48   _tracer(_heap->tracer()) {
 49   assert(!ShenandoahGCPhase::is_current_phase_valid(), "No current GC phase");
 50 
 51   _heap->on_cycle_start(cause, _generation);
 52 
 53   _timer->register_gc_start();
 54   _tracer->report_gc_start(cause, _timer->gc_start());
 55   _heap->trace_heap_before_gc(_tracer);
 56 


 57   _trace_cycle.initialize(_heap->cycle_memory_manager(), cause,
 58           "end of GC cycle",
 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 ShenandoahGCSession::~ShenandoahGCSession() {
 71   _heap->on_cycle_end(_generation);
 72   _timer->register_gc_end();
 73   _heap->trace_heap_after_gc(_tracer);
 74   _tracer->report_gc_reference_stats(_generation->ref_processor()->reference_process_stats());
 75   _tracer->report_gc_end(_timer->gc_end(), _timer->time_partitions());
 76   assert(!ShenandoahGCPhase::is_current_phase_valid(), "No current GC phase");

 77 }
 78 
 79 ShenandoahGCPauseMark::ShenandoahGCPauseMark(uint gc_id, const char* notification_message, SvcGCMarker::reason_type type) :
 80   _heap(ShenandoahHeap::heap()), _gc_id_mark(gc_id), _svc_gc_mark(type), _is_gc_active_mark() {
 81   _trace_pause.initialize(_heap->stw_memory_manager(), _heap->gc_cause(),
 82           notification_message,
 83           /* allMemoryPoolsAffected */    true,
 84           /* recordGCBeginTime = */       true,
 85           /* recordPreGCUsage = */        false,
 86           /* recordPeakUsage = */         false,
 87           /* recordPostGCUsage = */       false,
 88           /* recordAccumulatedGCTime = */ true,
 89           /* recordGCEndTime = */         true,
 90           /* countCollection = */         true
 91   );
 92 }
 93 
 94 ShenandoahPausePhase::ShenandoahPausePhase(const char* title, ShenandoahPhaseTimings::Phase phase, bool log_heap_usage) :
 95   ShenandoahTimingsTracker(phase),
 96   _tracer(title, nullptr, GCCause::_no_gc, log_heap_usage),
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