Mercurial > jdk8-mips64-public > hotspot / file revision

 /*

  * Copyright (c) 2007, 2014, 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/concurrentMarkSweep/cmsAdaptiveSizePolicy.hpp"

 #include "gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.hpp"

 #include "gc_implementation/concurrentMarkSweep/cmsGCAdaptivePolicyCounters.hpp"

 #include "gc_implementation/parNew/parNewGeneration.hpp"

 #include "gc_implementation/shared/gcPolicyCounters.hpp"

 #include "gc_implementation/shared/vmGCOperations.hpp"

 #include "memory/cardTableRS.hpp"

 #include "memory/collectorPolicy.hpp"

 #include "memory/gcLocker.inline.hpp"

 #include "memory/genCollectedHeap.hpp"

 #include "memory/generationSpec.hpp"

 #include "memory/space.hpp"

 #include "memory/universe.hpp"

 #include "runtime/arguments.hpp"

 #include "runtime/globals_extension.hpp"

 #include "runtime/handles.inline.hpp"

 #include "runtime/java.hpp"

 #include "runtime/thread.inline.hpp"

 #include "runtime/vmThread.hpp"

 //

 // ConcurrentMarkSweepPolicy methods

 //

 void ConcurrentMarkSweepPolicy::initialize_alignments() {

   _space_alignment = _gen_alignment = (uintx)Generation::GenGrain;

   _heap_alignment = compute_heap_alignment();

 }

 void ConcurrentMarkSweepPolicy::initialize_generations() {

   _generations = NEW_C_HEAP_ARRAY3(GenerationSpecPtr, number_of_generations(), mtGC,

     CURRENT_PC, AllocFailStrategy::RETURN_NULL);

   if (_generations == NULL)

     vm_exit_during_initialization("Unable to allocate gen spec");

   if (UseParNewGC) {

     if (UseAdaptiveSizePolicy) {

       _generations[0] = new GenerationSpec(Generation::ASParNew,

                                            _initial_gen0_size, _max_gen0_size);

     } else {

       _generations[0] = new GenerationSpec(Generation::ParNew,

                                            _initial_gen0_size, _max_gen0_size);

     }

   } else {

     _generations[0] = new GenerationSpec(Generation::DefNew,

                                          _initial_gen0_size, _max_gen0_size);

   }

   if (UseAdaptiveSizePolicy) {

     _generations[1] = new GenerationSpec(Generation::ASConcurrentMarkSweep,

                             _initial_gen1_size, _max_gen1_size);

   } else {

     _generations[1] = new GenerationSpec(Generation::ConcurrentMarkSweep,

                             _initial_gen1_size, _max_gen1_size);

   }

   if (_generations[0] == NULL || _generations[1] == NULL) {

     vm_exit_during_initialization("Unable to allocate gen spec");

   }

 }

 void ConcurrentMarkSweepPolicy::initialize_size_policy(size_t init_eden_size,

                                                size_t init_promo_size,

                                                size_t init_survivor_size) {

   double max_gc_minor_pause_sec = ((double) MaxGCMinorPauseMillis)/1000.0;

   double max_gc_pause_sec = ((double) MaxGCPauseMillis)/1000.0;

   _size_policy = new CMSAdaptiveSizePolicy(init_eden_size,

                                            init_promo_size,

                                            init_survivor_size,

                                            max_gc_minor_pause_sec,

                                            max_gc_pause_sec,

                                            GCTimeRatio);

 }

 void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {

   // initialize the policy counters - 2 collectors, 3 generations

   if (UseParNewGC) {

     _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3);

   }

   else {

     _gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3);

   }

 }

 // Returns true if the incremental mode is enabled.

 bool ConcurrentMarkSweepPolicy::has_soft_ended_eden()

 {

   return CMSIncrementalMode;

 }

 //

 // ASConcurrentMarkSweepPolicy methods

 //

 void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {

   assert(size_policy() != NULL, "A size policy is required");

   // initialize the policy counters - 2 collectors, 3 generations

   if (UseParNewGC) {

     _gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3,

       size_policy());

   }

   else {

     _gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3,

       size_policy());

   }

 }