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
33ShenandoahPhaseTimings::Phase ShenandoahTerminationTracker::_current_termination_phase = ShenandoahPhaseTimings::_num_phases;
34
35ShenandoahWorkerTimingsTracker::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
43ShenandoahWorkerTimingsTracker::~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
55ShenandoahTerminationTimingsTracker::ShenandoahTerminationTimingsTracker(uint worker_id) :
56 _worker_id(worker_id) {
57 if (ShenandoahTerminationTrace) {
58 _start_time = os::elapsedTime();
59 }
60}
61
62ShenandoahTerminationTimingsTracker::~ShenandoahTerminationTimingsTracker() {
63 if (ShenandoahTerminationTrace) {
64 ShenandoahHeap::heap()->phase_timings()->termination_times()->record_time_secs(_worker_id, os::elapsedTime() - _start_time);
65 }
66}
67
68ShenandoahTerminationTracker::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_Worker_thread() &&
80 (Thread::current()->is_VM_thread() ||
81 Thread::current()->is_ConcurrentGC_thread()),
82 "Called from wrong thread");
83
84 _current_termination_phase = phase;
85 ShenandoahHeap::heap()->phase_timings()->termination_times()->reset();
86}
87
88ShenandoahTerminationTracker::~ShenandoahTerminationTracker() {
89 assert(_phase == _current_termination_phase, "Can not change phase");
90 ShenandoahPhaseTimings* phase_times = ShenandoahHeap::heap()->phase_timings();
91
92 double t = phase_times->termination_times()->average();
93 phase_times->record_phase_time(_phase, t);
94 debug_only(_current_termination_phase = ShenandoahPhaseTimings::_num_phases;)
95}
96