jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp@001ec9515f84 (annotated)

src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp@001ec9515f84 (annotated)

src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp

Fri, 17 May 2013 11:57:05 +0200

author: ehelin
date: Fri, 17 May 2013 11:57:05 +0200
changeset 5159: 001ec9515f84
parent 5078: 194f52aa2f23
child 5204: e72f7eecc96d
permissions: -rw-r--r--

8014277: Remove ObjectClosure as base class for BoolObjectClosure
Reviewed-by: brutisso, tschatzl

 /*
  * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "gc_implementation/g1/concurrentG1Refine.hpp"
 #include "gc_implementation/g1/concurrentG1RefineThread.hpp"
 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
 #include "gc_implementation/g1/g1HotCardCache.hpp"
 ConcurrentG1Refine::ConcurrentG1Refine(G1CollectedHeap* g1h) :
   _threads(NULL), _n_threads(0),
   _hot_card_cache(g1h)
 {
   // Ergomonically select initial concurrent refinement parameters
   if (FLAG_IS_DEFAULT(G1ConcRefinementGreenZone)) {
     FLAG_SET_DEFAULT(G1ConcRefinementGreenZone, MAX2<int>(ParallelGCThreads, 1));
   }
   set_green_zone(G1ConcRefinementGreenZone);
   if (FLAG_IS_DEFAULT(G1ConcRefinementYellowZone)) {
     FLAG_SET_DEFAULT(G1ConcRefinementYellowZone, green_zone() * 3);
   }
   set_yellow_zone(MAX2<int>(G1ConcRefinementYellowZone, green_zone()));
   if (FLAG_IS_DEFAULT(G1ConcRefinementRedZone)) {
     FLAG_SET_DEFAULT(G1ConcRefinementRedZone, yellow_zone() * 2);
   }
   set_red_zone(MAX2<int>(G1ConcRefinementRedZone, yellow_zone()));
   _n_worker_threads = thread_num();
   // We need one extra thread to do the young gen rset size sampling.
   _n_threads = _n_worker_threads + 1;
   reset_threshold_step();
   _threads = NEW_C_HEAP_ARRAY(ConcurrentG1RefineThread*, _n_threads, mtGC);
   int worker_id_offset = (int)DirtyCardQueueSet::num_par_ids();
   ConcurrentG1RefineThread *next = NULL;
   for (int i = _n_threads - 1; i >= 0; i--) {
     ConcurrentG1RefineThread* t = new ConcurrentG1RefineThread(this, next, worker_id_offset, i);
     assert(t != NULL, "Conc refine should have been created");
     assert(t->cg1r() == this, "Conc refine thread should refer to this");
     _threads[i] = t;
     next = t;
   }
 }
 void ConcurrentG1Refine::reset_threshold_step() {
   if (FLAG_IS_DEFAULT(G1ConcRefinementThresholdStep)) {
     _thread_threshold_step = (yellow_zone() - green_zone()) / (worker_thread_num() + 1);
   } else {
     _thread_threshold_step = G1ConcRefinementThresholdStep;
   }
 }
 void ConcurrentG1Refine::init() {
   _hot_card_cache.initialize();
 }
 void ConcurrentG1Refine::stop() {
   if (_threads != NULL) {
     for (int i = 0; i < _n_threads; i++) {
       _threads[i]->stop();
     }
   }
 }
 void ConcurrentG1Refine::reinitialize_threads() {
   reset_threshold_step();
   if (_threads != NULL) {
     for (int i = 0; i < _n_threads; i++) {
       _threads[i]->initialize();
     }
   }
 }
 ConcurrentG1Refine::~ConcurrentG1Refine() {
   if (_threads != NULL) {
     for (int i = 0; i < _n_threads; i++) {
       delete _threads[i];
     }
     FREE_C_HEAP_ARRAY(ConcurrentG1RefineThread*, _threads, mtGC);
   }
 }
 void ConcurrentG1Refine::threads_do(ThreadClosure *tc) {
   if (_threads != NULL) {
     for (int i = 0; i < _n_threads; i++) {
       tc->do_thread(_threads[i]);
     }
   }
 }
 int ConcurrentG1Refine::thread_num() {
   int n_threads = (G1ConcRefinementThreads > 0) ? G1ConcRefinementThreads
                                                 : ParallelGCThreads;
   return MAX2<int>(n_threads, 1);
 }
 void ConcurrentG1Refine::print_worker_threads_on(outputStream* st) const {
   for (int i = 0; i < _n_threads; ++i) {
     _threads[i]->print_on(st);
     st->cr();
   }
 }

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src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp@001ec9515f84 (annotated)

src/share/vm/gc_implementation/g1/concurrentG1Refine.cpp