1 /* 2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. 7 * 8 * This code is distributed in the hope that it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 * version 2 for more details (a copy is included in the LICENSE file that 12 * accompanied this code). 13 * 14 * You should have received a copy of the GNU General Public License version 15 * 2 along with this work; if not, write to the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 19 * or visit www.oracle.com if you need additional information or have any 20 * questions. 21 * 22 */ 23 24 #include "precompiled.hpp" 25 26 #include "gc/shenandoah/shenandoahHeap.hpp" 27 #include "gc/shenandoah/shenandoahPhaseTimings.hpp" 28 #include "gc/shenandoah/shenandoahTimingTracker.hpp" 29 #include "gc/shenandoah/shenandoahUtils.hpp" 30 #include "runtime/os.hpp" 31 32 33 ShenandoahPhaseTimings::Phase ShenandoahTerminationTracker::_current_termination_phase = ShenandoahPhaseTimings::_num_phases; 34 35 ShenandoahWorkerTimingsTracker::ShenandoahWorkerTimingsTracker(ShenandoahWorkerTimings* worker_times, 36 ShenandoahPhaseTimings::GCParPhases phase, uint worker_id) : 37 _phase(phase), _worker_times(worker_times), _worker_id(worker_id) { 38 if (_worker_times != NULL) { 39 _start_time = os::elapsedTime(); 40 } 41 } 42 43 ShenandoahWorkerTimingsTracker::~ShenandoahWorkerTimingsTracker() { 44 if (_worker_times != NULL) { 45 _worker_times->record_time_secs(_phase, _worker_id, os::elapsedTime() - _start_time); 46 } 47 48 if (ShenandoahGCPhase::is_root_work_phase()) { 49 ShenandoahPhaseTimings::Phase root_phase = ShenandoahGCPhase::current_phase(); 50 ShenandoahPhaseTimings::Phase cur_phase = (ShenandoahPhaseTimings::Phase)((int)root_phase + (int)_phase + 1); 51 _event.commit(GCId::current(), _worker_id, ShenandoahPhaseTimings::phase_name(cur_phase)); 52 } 53 } 54 55 ShenandoahTerminationTimingsTracker::ShenandoahTerminationTimingsTracker(uint worker_id) : 56 _worker_id(worker_id) { 57 if (ShenandoahTerminationTrace) { 58 _start_time = os::elapsedTime(); 59 } 60 } 61 62 ShenandoahTerminationTimingsTracker::~ShenandoahTerminationTimingsTracker() { 63 if (ShenandoahTerminationTrace) { 64 ShenandoahHeap::heap()->phase_timings()->termination_times()->record_time_secs(_worker_id, os::elapsedTime() - _start_time); 65 } 66 } 67 68 ShenandoahTerminationTracker::ShenandoahTerminationTracker(ShenandoahPhaseTimings::Phase phase) : _phase(phase) { 69 assert(_current_termination_phase == ShenandoahPhaseTimings::_num_phases, "Should be invalid"); 70 assert(phase == ShenandoahPhaseTimings::termination || 71 phase == ShenandoahPhaseTimings::final_traversal_gc_termination || 72 phase == ShenandoahPhaseTimings::full_gc_mark_termination || 73 phase == ShenandoahPhaseTimings::conc_termination || 74 phase == ShenandoahPhaseTimings::conc_traversal_termination || 75 phase == ShenandoahPhaseTimings::weakrefs_termination || 76 phase == ShenandoahPhaseTimings::full_gc_weakrefs_termination, 77 "Only these phases"); 78 79 assert(Thread::current()->is_VM_thread() || Thread::current()->is_ConcurrentGC_thread(), 80 "Called from wrong thread"); 81 _current_termination_phase = phase; 82 ShenandoahHeap::heap()->phase_timings()->termination_times()->reset(); 83 } 84 85 ShenandoahTerminationTracker::~ShenandoahTerminationTracker() { 86 assert(_phase == _current_termination_phase, "Can not change phase"); 87 ShenandoahPhaseTimings* phase_times = ShenandoahHeap::heap()->phase_timings(); 88 89 double t = phase_times->termination_times()->average(); 90 phase_times->record_phase_time(_phase, t); 91 debug_only(_current_termination_phase = ShenandoahPhaseTimings::_num_phases;) 92 }