rev 58201 : 8240216: Shenandoah: remove ShenandoahTerminationTrace
Reviewed-by: XXX

   1 /*
   2  * Copyright (c) 2018, 2019, 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 "gc/shenandoah/shenandoahHeap.hpp"
  28 #include "gc/shenandoah/shenandoahPhaseTimings.hpp"
  29 #include "gc/shenandoah/shenandoahTimingTracker.hpp"
  30 #include "gc/shenandoah/shenandoahUtils.hpp"
  31 #include "runtime/os.hpp"
  32 
  33 
  34 ShenandoahPhaseTimings::Phase ShenandoahTerminationTracker::_current_termination_phase = ShenandoahPhaseTimings::_num_phases;
  35 
  36 ShenandoahWorkerTimingsTracker::ShenandoahWorkerTimingsTracker(ShenandoahWorkerTimings* worker_times,
  37                                                               ShenandoahPhaseTimings::GCParPhases phase, uint worker_id) :
  38   _phase(phase), _worker_times(worker_times), _worker_id(worker_id) {
  39   if (_worker_times != NULL) {
  40     _start_time = os::elapsedTime();
  41   }
  42 }
  43 
  44 ShenandoahWorkerTimingsTracker::~ShenandoahWorkerTimingsTracker() {
  45   if (_worker_times != NULL) {
  46     _worker_times->record_time_secs(_phase, _worker_id, os::elapsedTime() - _start_time);
  47   }
  48 
  49   if (ShenandoahGCPhase::is_root_work_phase()) {
  50     ShenandoahPhaseTimings::Phase root_phase = ShenandoahGCPhase::current_phase();
  51     ShenandoahPhaseTimings::Phase cur_phase = (ShenandoahPhaseTimings::Phase)((int)root_phase + (int)_phase + 1);
  52     _event.commit(GCId::current(), _worker_id, ShenandoahPhaseTimings::phase_name(cur_phase));
  53   }
  54 }
  55 
  56 ShenandoahTerminationTimingsTracker::ShenandoahTerminationTimingsTracker(uint worker_id) :
  57   _worker_id(worker_id)  {
  58   if (ShenandoahTerminationTrace) {
  59     _start_time = os::elapsedTime();
  60   }
  61 }
  62 
  63 ShenandoahTerminationTimingsTracker::~ShenandoahTerminationTimingsTracker() {
  64   if (ShenandoahTerminationTrace) {
  65     ShenandoahHeap::heap()->phase_timings()->termination_times()->record_time_secs(_worker_id, os::elapsedTime() - _start_time);
  66   }
  67 }
  68 
  69 ShenandoahTerminationTracker::ShenandoahTerminationTracker(ShenandoahPhaseTimings::Phase phase) : _phase(phase) {
  70   assert(_current_termination_phase == ShenandoahPhaseTimings::_num_phases, "Should be invalid");
  71   assert(phase == ShenandoahPhaseTimings::termination ||
  72          phase == ShenandoahPhaseTimings::final_traversal_gc_termination ||
  73          phase == ShenandoahPhaseTimings::full_gc_mark_termination ||
  74          phase == ShenandoahPhaseTimings::conc_termination ||
  75          phase == ShenandoahPhaseTimings::conc_traversal_termination ||
  76          phase == ShenandoahPhaseTimings::weakrefs_termination ||
  77          phase == ShenandoahPhaseTimings::full_gc_weakrefs_termination,
  78          "Only these phases");
  79 
  80   assert(!Thread::current()->is_Worker_thread() &&
  81              (Thread::current()->is_VM_thread() ||
  82               Thread::current()->is_ConcurrentGC_thread()),
  83         "Called from wrong thread");
  84 
  85   _current_termination_phase = phase;
  86   ShenandoahHeap::heap()->phase_timings()->termination_times()->reset();
  87 }
  88 
  89 ShenandoahTerminationTracker::~ShenandoahTerminationTracker() {
  90   assert(_phase == _current_termination_phase, "Can not change phase");
  91   ShenandoahPhaseTimings* phase_times = ShenandoahHeap::heap()->phase_timings();
  92 
  93   double t = phase_times->termination_times()->average();
  94   phase_times->record_phase_time(_phase, t);
  95   debug_only(_current_termination_phase = ShenandoahPhaseTimings::_num_phases;)
  96 }
--- EOF ---