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 /* 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) : 91 ShenandoahTimingsTracker(phase), 92 _tracer(title, NULL, GCCause::_no_gc, log_heap_usage), 93 _timer(ShenandoahHeap::heap()->gc_timer()) { 94 _timer->register_gc_pause_start(title); 95 } 96 97 ShenandoahPausePhase::~ShenandoahPausePhase() { 98 _timer->register_gc_pause_end(); 99 } 100 101 ShenandoahConcurrentPhase::ShenandoahConcurrentPhase(const char* title, ShenandoahPhaseTimings::Phase phase, bool log_heap_usage) : 102 ShenandoahTimingsTracker(phase), 103 _tracer(title, NULL, GCCause::_no_gc, log_heap_usage), 104 _timer(ShenandoahHeap::heap()->gc_timer()) { 105 _timer->register_gc_concurrent_start(title); 106 } 107 108 ShenandoahConcurrentPhase::~ShenandoahConcurrentPhase() { 109 _timer->register_gc_concurrent_end(); 110 } 111 112 ShenandoahTimingsTracker::ShenandoahTimingsTracker(ShenandoahPhaseTimings::Phase phase) : 113 _timings(ShenandoahHeap::heap()->phase_timings()), _phase(phase) { 114 assert(Thread::current()->is_VM_thread() || Thread::current()->is_ConcurrentGC_thread(), 115 "Must be set by these threads"); 116 _parent_phase = _current_phase; 117 _current_phase = phase; 118 _start = os::elapsedTime(); 119 } 120 121 ShenandoahTimingsTracker::~ShenandoahTimingsTracker() { 122 _timings->record_phase_time(_phase, os::elapsedTime() - _start); 123 _current_phase = _parent_phase; 124 } 125 126 bool ShenandoahTimingsTracker::is_current_phase_valid() { 127 return _current_phase < ShenandoahPhaseTimings::_num_phases; 128 } 129 130 ShenandoahGCPhase::ShenandoahGCPhase(ShenandoahPhaseTimings::Phase phase) : 131 ShenandoahTimingsTracker(phase), 132 _timer(ShenandoahHeap::heap()->gc_timer()) { 133 _timer->register_gc_phase_start(ShenandoahPhaseTimings::phase_name(phase), Ticks::now()); 134 } 135 136 ShenandoahGCPhase::~ShenandoahGCPhase() { 137 _timer->register_gc_phase_end(Ticks::now()); 138 } 139 140 ShenandoahGCWorkerPhase::ShenandoahGCWorkerPhase(const ShenandoahPhaseTimings::Phase phase) : 141 _timings(ShenandoahHeap::heap()->phase_timings()), _phase(phase) { 142 _timings->record_workers_start(_phase); 143 } 144 145 ShenandoahGCWorkerPhase::~ShenandoahGCWorkerPhase() { 146 _timings->record_workers_end(_phase); 147 } 148 149 ShenandoahWorkerSession::ShenandoahWorkerSession(uint worker_id) { 150 assert(worker_id == WorkerThread::worker_id(), "Wrong worker id"); 151 } 152 153 ShenandoahConcurrentWorkerSession::~ShenandoahConcurrentWorkerSession() { 154 _event.commit(GCId::current(), ShenandoahPhaseTimings::phase_name(ShenandoahGCPhase::current_phase())); 155 } 156 157 ShenandoahParallelWorkerSession::~ShenandoahParallelWorkerSession() { 158 _event.commit(GCId::current(), WorkerThread::worker_id(), ShenandoahPhaseTimings::phase_name(ShenandoahGCPhase::current_phase())); 159 }