duke@435: /*
jmasa@2188:  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #include "precompiled.hpp"
stefank@2314: #include "gc_implementation/concurrentMarkSweep/cmsAdaptiveSizePolicy.hpp"
stefank@2314: #include "gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.hpp"
stefank@2314: #include "gc_implementation/concurrentMarkSweep/cmsGCAdaptivePolicyCounters.hpp"
stefank@2314: #include "gc_implementation/parNew/parNewGeneration.hpp"
stefank@2314: #include "gc_implementation/shared/gcPolicyCounters.hpp"
stefank@2314: #include "gc_implementation/shared/vmGCOperations.hpp"
stefank@2314: #include "memory/cardTableRS.hpp"
stefank@2314: #include "memory/collectorPolicy.hpp"
stefank@2314: #include "memory/gcLocker.inline.hpp"
stefank@2314: #include "memory/genCollectedHeap.hpp"
stefank@2314: #include "memory/generationSpec.hpp"
stefank@2314: #include "memory/space.hpp"
stefank@2314: #include "memory/universe.hpp"
stefank@2314: #include "runtime/arguments.hpp"
stefank@2314: #include "runtime/globals_extension.hpp"
stefank@2314: #include "runtime/handles.inline.hpp"
stefank@2314: #include "runtime/java.hpp"
stefank@2314: #include "runtime/vmThread.hpp"
stefank@2314: #ifdef TARGET_OS_FAMILY_linux
stefank@2314: # include "thread_linux.inline.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_OS_FAMILY_solaris
stefank@2314: # include "thread_solaris.inline.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_OS_FAMILY_windows
stefank@2314: # include "thread_windows.inline.hpp"
stefank@2314: #endif
duke@435: 
duke@435: //
duke@435: // ConcurrentMarkSweepPolicy methods
duke@435: //
duke@435: 
duke@435: ConcurrentMarkSweepPolicy::ConcurrentMarkSweepPolicy() {
duke@435:   initialize_all();
duke@435: }
duke@435: 
duke@435: void ConcurrentMarkSweepPolicy::initialize_generations() {
duke@435:   initialize_perm_generation(PermGen::ConcurrentMarkSweep);
duke@435:   _generations = new GenerationSpecPtr[number_of_generations()];
duke@435:   if (_generations == NULL)
duke@435:     vm_exit_during_initialization("Unable to allocate gen spec");
duke@435: 
jmasa@2188:   if (ParNewGeneration::in_use()) {
duke@435:     if (UseAdaptiveSizePolicy) {
duke@435:       _generations[0] = new GenerationSpec(Generation::ASParNew,
duke@435:                                            _initial_gen0_size, _max_gen0_size);
duke@435:     } else {
duke@435:       _generations[0] = new GenerationSpec(Generation::ParNew,
duke@435:                                            _initial_gen0_size, _max_gen0_size);
duke@435:     }
duke@435:   } else {
duke@435:     _generations[0] = new GenerationSpec(Generation::DefNew,
duke@435:                                          _initial_gen0_size, _max_gen0_size);
duke@435:   }
duke@435:   if (UseAdaptiveSizePolicy) {
duke@435:     _generations[1] = new GenerationSpec(Generation::ASConcurrentMarkSweep,
duke@435:                             _initial_gen1_size, _max_gen1_size);
duke@435:   } else {
duke@435:     _generations[1] = new GenerationSpec(Generation::ConcurrentMarkSweep,
duke@435:                             _initial_gen1_size, _max_gen1_size);
duke@435:   }
duke@435: 
duke@435:   if (_generations[0] == NULL || _generations[1] == NULL) {
duke@435:     vm_exit_during_initialization("Unable to allocate gen spec");
duke@435:   }
duke@435: }
duke@435: 
duke@435: void ConcurrentMarkSweepPolicy::initialize_size_policy(size_t init_eden_size,
duke@435:                                                size_t init_promo_size,
duke@435:                                                size_t init_survivor_size) {
duke@435:   double max_gc_minor_pause_sec = ((double) MaxGCMinorPauseMillis)/1000.0;
duke@435:   double max_gc_pause_sec = ((double) MaxGCPauseMillis)/1000.0;
duke@435:   _size_policy = new CMSAdaptiveSizePolicy(init_eden_size,
duke@435:                                            init_promo_size,
duke@435:                                            init_survivor_size,
duke@435:                                            max_gc_minor_pause_sec,
duke@435:                                            max_gc_pause_sec,
duke@435:                                            GCTimeRatio);
duke@435: }
duke@435: 
duke@435: void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
duke@435:   // initialize the policy counters - 2 collectors, 3 generations
jmasa@2188:   if (ParNewGeneration::in_use()) {
duke@435:     _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3);
duke@435:   }
duke@435:   else {
duke@435:     _gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3);
duke@435:   }
duke@435: }
duke@435: 
duke@435: // Returns true if the incremental mode is enabled.
duke@435: bool ConcurrentMarkSweepPolicy::has_soft_ended_eden()
duke@435: {
duke@435:   return CMSIncrementalMode;
duke@435: }
duke@435: 
duke@435: 
duke@435: //
duke@435: // ASConcurrentMarkSweepPolicy methods
duke@435: //
duke@435: 
duke@435: void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
duke@435: 
duke@435:   assert(size_policy() != NULL, "A size policy is required");
duke@435:   // initialize the policy counters - 2 collectors, 3 generations
jmasa@2188:   if (ParNewGeneration::in_use()) {
duke@435:     _gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3,
duke@435:       size_policy());
duke@435:   }
duke@435:   else {
duke@435:     _gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3,
duke@435:       size_policy());
duke@435:   }
duke@435: }