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src/hotspot/share/gc/shenandoah/shenandoahPhaseTimings.cpp

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  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  *

 80 }
 81 
 82 ShenandoahPhaseTimings::Phase ShenandoahPhaseTimings::worker_par_phase(Phase phase, ParPhase par_phase) {
 83   assert(is_worker_phase(phase), "Phase should accept worker phase times: %s", phase_name(phase));
 84   Phase p = Phase(phase + 1 + par_phase);
 85   assert(p >= 0 && p < _num_phases, "Out of bound for: %s", phase_name(phase));
 86   return p;
 87 }
 88 
 89 ShenandoahWorkerData* ShenandoahPhaseTimings::worker_data(Phase phase, ParPhase par_phase) {
 90   Phase p = worker_par_phase(phase, par_phase);
 91   ShenandoahWorkerData* wd = _worker_data[p];
 92   assert(wd != nullptr, "Counter initialized: %s", phase_name(p));
 93   return wd;
 94 }
 95 
 96 bool ShenandoahPhaseTimings::is_worker_phase(Phase phase) {
 97   assert(phase >= 0 && phase < _num_phases, "Out of bounds");
 98   switch (phase) {
 99     case init_evac:

100     case finish_mark:
101     case purge_weak_par:
102     case full_gc_mark:
103     case full_gc_update_roots:
104     case full_gc_adjust_roots:
105     case degen_gc_stw_mark:
106     case degen_gc_mark:
107     case degen_gc_update_roots:
108     case full_gc_weakrefs:
109     case full_gc_purge_class_unload:
110     case full_gc_purge_weak_par:
111     case degen_gc_weakrefs:
112     case degen_gc_purge_class_unload:
113     case degen_gc_purge_weak_par:
114     case heap_iteration_roots:

115     case conc_mark_roots:
116     case conc_thread_roots:
117     case conc_weak_roots_work:
118     case conc_weak_refs:
119     case conc_strong_roots:
120       return true;
121     default:
122       return false;
123   }
124 }
125 
126 bool ShenandoahPhaseTimings::is_root_work_phase(Phase phase) {
127   switch (phase) {
128     case finish_mark:
129     case init_evac:
130     case degen_gc_update_roots:
131     case full_gc_mark:
132     case full_gc_update_roots:
133     case full_gc_adjust_roots:
134       return true;

291                     SHENANDOAH_US_TIME_FORMAT ", "
292                     SHENANDOAH_US_TIME_FORMAT ", "
293                     SHENANDOAH_US_TIME_FORMAT ", "
294                     SHENANDOAH_US_TIME_FORMAT ", "
295                     SHENANDOAH_US_TIME_FORMAT ")",
296                     _phase_names[i],
297                     _global_data[i].sum(),
298                     _global_data[i].avg() * 1000000.0,
299                     _global_data[i].num(),
300                     _global_data[i].percentile(0) * 1000000.0,
301                     _global_data[i].percentile(25) * 1000000.0,
302                     _global_data[i].percentile(50) * 1000000.0,
303                     _global_data[i].percentile(75) * 1000000.0,
304                     _global_data[i].maximum() * 1000000.0
305       );
306     }
307   }
308 }
309 
310 ShenandoahWorkerTimingsTracker::ShenandoahWorkerTimingsTracker(ShenandoahPhaseTimings::Phase phase,
311         ShenandoahPhaseTimings::ParPhase par_phase, uint worker_id) :
312         _timings(ShenandoahHeap::heap()->phase_timings()),
313         _phase(phase), _par_phase(par_phase), _worker_id(worker_id) {
314 
315   assert(_timings->worker_data(_phase, _par_phase)->get(_worker_id) == ShenandoahWorkerData::uninitialized(),
316          "Should not be set yet: %s", ShenandoahPhaseTimings::phase_name(_timings->worker_par_phase(_phase, _par_phase)));
317   _start_time = os::elapsedTime();
318 }
319 
320 ShenandoahWorkerTimingsTracker::~ShenandoahWorkerTimingsTracker() {
321   _timings->worker_data(_phase, _par_phase)->set(_worker_id, os::elapsedTime() - _start_time);
322 
323   if (ShenandoahPhaseTimings::is_root_work_phase(_phase)) {
324     ShenandoahPhaseTimings::Phase root_phase = _phase;
325     ShenandoahPhaseTimings::Phase cur_phase = _timings->worker_par_phase(root_phase, _par_phase);
326     _event.commit(GCId::current(), _worker_id, ShenandoahPhaseTimings::phase_name(cur_phase));
327   }
328 }
329 

  1 /*
  2  * Copyright (c) 2017, 2021, Red Hat, Inc. All rights reserved.
  3  * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
  4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  5  *
  6  * This code is free software; you can redistribute it and/or modify it
  7  * under the terms of the GNU General Public License version 2 only, as
  8  * published by the Free Software Foundation.
  9  *
 10  * This code is distributed in the hope that it will be useful, but WITHOUT
 11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 13  * version 2 for more details (a copy is included in the LICENSE file that
 14  * accompanied this code).
 15  *
 16  * You should have received a copy of the GNU General Public License version
 17  * 2 along with this work; if not, write to the Free Software Foundation,
 18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 19  *
 20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 21  * or visit www.oracle.com if you need additional information or have any
 22  * questions.
 23  *

 81 }
 82 
 83 ShenandoahPhaseTimings::Phase ShenandoahPhaseTimings::worker_par_phase(Phase phase, ParPhase par_phase) {
 84   assert(is_worker_phase(phase), "Phase should accept worker phase times: %s", phase_name(phase));
 85   Phase p = Phase(phase + 1 + par_phase);
 86   assert(p >= 0 && p < _num_phases, "Out of bound for: %s", phase_name(phase));
 87   return p;
 88 }
 89 
 90 ShenandoahWorkerData* ShenandoahPhaseTimings::worker_data(Phase phase, ParPhase par_phase) {
 91   Phase p = worker_par_phase(phase, par_phase);
 92   ShenandoahWorkerData* wd = _worker_data[p];
 93   assert(wd != nullptr, "Counter initialized: %s", phase_name(p));
 94   return wd;
 95 }
 96 
 97 bool ShenandoahPhaseTimings::is_worker_phase(Phase phase) {
 98   assert(phase >= 0 && phase < _num_phases, "Out of bounds");
 99   switch (phase) {
100     case init_evac:
101     case init_scan_rset:
102     case finish_mark:
103     case purge_weak_par:
104     case full_gc_mark:
105     case full_gc_update_roots:
106     case full_gc_adjust_roots:
107     case degen_gc_stw_mark:
108     case degen_gc_mark:
109     case degen_gc_update_roots:
110     case full_gc_weakrefs:
111     case full_gc_purge_class_unload:
112     case full_gc_purge_weak_par:
113     case degen_gc_weakrefs:
114     case degen_gc_purge_class_unload:
115     case degen_gc_purge_weak_par:
116     case heap_iteration_roots:
117     case conc_mark:
118     case conc_mark_roots:
119     case conc_thread_roots:
120     case conc_weak_roots_work:
121     case conc_weak_refs:
122     case conc_strong_roots:
123       return true;
124     default:
125       return false;
126   }
127 }
128 
129 bool ShenandoahPhaseTimings::is_root_work_phase(Phase phase) {
130   switch (phase) {
131     case finish_mark:
132     case init_evac:
133     case degen_gc_update_roots:
134     case full_gc_mark:
135     case full_gc_update_roots:
136     case full_gc_adjust_roots:
137       return true;

294                     SHENANDOAH_US_TIME_FORMAT ", "
295                     SHENANDOAH_US_TIME_FORMAT ", "
296                     SHENANDOAH_US_TIME_FORMAT ", "
297                     SHENANDOAH_US_TIME_FORMAT ", "
298                     SHENANDOAH_US_TIME_FORMAT ")",
299                     _phase_names[i],
300                     _global_data[i].sum(),
301                     _global_data[i].avg() * 1000000.0,
302                     _global_data[i].num(),
303                     _global_data[i].percentile(0) * 1000000.0,
304                     _global_data[i].percentile(25) * 1000000.0,
305                     _global_data[i].percentile(50) * 1000000.0,
306                     _global_data[i].percentile(75) * 1000000.0,
307                     _global_data[i].maximum() * 1000000.0
308       );
309     }
310   }
311 }
312 
313 ShenandoahWorkerTimingsTracker::ShenandoahWorkerTimingsTracker(ShenandoahPhaseTimings::Phase phase,
314         ShenandoahPhaseTimings::ParPhase par_phase, uint worker_id, bool cumulative) :
315         _timings(ShenandoahHeap::heap()->phase_timings()),
316         _phase(phase), _par_phase(par_phase), _worker_id(worker_id) {
317 
318   assert(_timings->worker_data(_phase, _par_phase)->get(_worker_id) == ShenandoahWorkerData::uninitialized() || cumulative,
319          "Should not be set yet: %s", ShenandoahPhaseTimings::phase_name(_timings->worker_par_phase(_phase, _par_phase)));
320   _start_time = os::elapsedTime();
321 }
322 
323 ShenandoahWorkerTimingsTracker::~ShenandoahWorkerTimingsTracker() {
324   _timings->worker_data(_phase, _par_phase)->set_or_add(_worker_id, os::elapsedTime() - _start_time);
325 
326   if (ShenandoahPhaseTimings::is_root_work_phase(_phase)) {
327     ShenandoahPhaseTimings::Phase root_phase = _phase;
328     ShenandoahPhaseTimings::Phase cur_phase = _timings->worker_par_phase(root_phase, _par_phase);
329     _event.commit(GCId::current(), _worker_id, ShenandoahPhaseTimings::phase_name(cur_phase));
330   }
331 }

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