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/shenandoahOldGeneration.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->on_cycle_start(cause, _generation); 51 52 _timer->register_gc_start(); 53 _tracer->report_gc_start(cause, _timer->gc_start()); 54 _heap->trace_heap_before_gc(_tracer); 55 56 _trace_cycle.initialize(_heap->cycle_memory_manager(), cause, 57 /* allMemoryPoolsAffected */ true, 58 /* recordGCBeginTime = */ true, 59 /* recordPreGCUsage = */ true, 60 /* recordPeakUsage = */ true, 61 /* recordPostGCUsage = */ true, 62 /* recordAccumulatedGCTime = */ true, 63 /* recordGCEndTime = */ true, 64 /* countCollection = */ true 65 ); 66 } 67 68 ShenandoahGCSession::~ShenandoahGCSession() { 69 _heap->on_cycle_end(_generation); 70 _timer->register_gc_end(); 71 _heap->trace_heap_after_gc(_tracer); 72 _tracer->report_gc_reference_stats(_generation->ref_processor()->reference_process_stats()); 73 _tracer->report_gc_end(_timer->gc_end(), _timer->time_partitions()); 74 assert(!ShenandoahGCPhase::is_current_phase_valid(), "No current GC phase"); 75 76 } 77 78 ShenandoahGCPauseMark::ShenandoahGCPauseMark(uint gc_id, SvcGCMarker::reason_type type) : 79 _heap(ShenandoahHeap::heap()), _gc_id_mark(gc_id), _svc_gc_mark(type), _is_gc_active_mark() { 80 _trace_pause.initialize(_heap->stw_memory_manager(), _heap->gc_cause(), 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, NULL, GCCause::_no_gc, log_heap_usage), 95 _timer(ShenandoahHeap::heap()->gc_timer()) { 96 _timer->register_gc_pause_start(title); 97 } 98 99 ShenandoahPausePhase::~ShenandoahPausePhase() { 100 _timer->register_gc_pause_end(); 101 } 102 103 ShenandoahConcurrentPhase::ShenandoahConcurrentPhase(const char* title, ShenandoahPhaseTimings::Phase phase, bool log_heap_usage) : 104 ShenandoahTimingsTracker(phase), 105 _tracer(title, NULL, GCCause::_no_gc, log_heap_usage), 106 _timer(ShenandoahHeap::heap()->gc_timer()) { 107 _timer->register_gc_concurrent_start(title); 108 } 109 110 ShenandoahConcurrentPhase::~ShenandoahConcurrentPhase() { 111 _timer->register_gc_concurrent_end(); 112 } 113 114 ShenandoahTimingsTracker::ShenandoahTimingsTracker(ShenandoahPhaseTimings::Phase phase) : 115 _timings(ShenandoahHeap::heap()->phase_timings()), _phase(phase) { 116 assert(Thread::current()->is_VM_thread() || Thread::current()->is_ConcurrentGC_thread(), 117 "Must be set by these threads"); 118 _parent_phase = _current_phase; 119 _current_phase = phase; 120 _start = os::elapsedTime(); 121 } 122 123 ShenandoahTimingsTracker::~ShenandoahTimingsTracker() { 124 _timings->record_phase_time(_phase, os::elapsedTime() - _start); 125 _current_phase = _parent_phase; 126 } 127 128 bool ShenandoahTimingsTracker::is_current_phase_valid() { 129 return _current_phase < ShenandoahPhaseTimings::_num_phases; 130 } 131 132 ShenandoahGCPhase::ShenandoahGCPhase(ShenandoahPhaseTimings::Phase phase) : 133 ShenandoahTimingsTracker(phase), 134 _timer(ShenandoahHeap::heap()->gc_timer()) { 135 _timer->register_gc_phase_start(ShenandoahPhaseTimings::phase_name(phase), Ticks::now()); 136 } 137 138 ShenandoahGCPhase::~ShenandoahGCPhase() { 139 _timer->register_gc_phase_end(Ticks::now()); 140 } 141 142 ShenandoahGCWorkerPhase::ShenandoahGCWorkerPhase(const ShenandoahPhaseTimings::Phase phase) : 143 _timings(ShenandoahHeap::heap()->phase_timings()), _phase(phase) { 144 _timings->record_workers_start(_phase); 145 } 146 147 ShenandoahGCWorkerPhase::~ShenandoahGCWorkerPhase() { 148 _timings->record_workers_end(_phase); 149 } 150 151 ShenandoahWorkerSession::ShenandoahWorkerSession(uint worker_id) { 152 assert(worker_id == WorkerThread::worker_id(), "Wrong worker id"); 153 } 154 155 ShenandoahConcurrentWorkerSession::~ShenandoahConcurrentWorkerSession() { 156 _event.commit(GCId::current(), ShenandoahPhaseTimings::phase_name(ShenandoahGCPhase::current_phase())); 157 } 158 159 ShenandoahParallelWorkerSession::~ShenandoahParallelWorkerSession() { 160 _event.commit(GCId::current(), WorkerThread::worker_id(), ShenandoahPhaseTimings::phase_name(ShenandoahGCPhase::current_phase())); 161 }