1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.cpp Sat Dec 01 00:00:00 2007 +0000
1.3 @@ -0,0 +1,113 @@
1.4 +/*
1.5 + * Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 + * have any questions.
1.25 + *
1.26 + */
1.27 +
1.28 +# include "incls/_precompiled.incl"
1.29 +# include "incls/_cmsCollectorPolicy.cpp.incl"
1.30 +
1.31 +//
1.32 +// ConcurrentMarkSweepPolicy methods
1.33 +//
1.34 +
1.35 +ConcurrentMarkSweepPolicy::ConcurrentMarkSweepPolicy() {
1.36 + initialize_all();
1.37 +}
1.38 +
1.39 +void ConcurrentMarkSweepPolicy::initialize_generations() {
1.40 + initialize_perm_generation(PermGen::ConcurrentMarkSweep);
1.41 + _generations = new GenerationSpecPtr[number_of_generations()];
1.42 + if (_generations == NULL)
1.43 + vm_exit_during_initialization("Unable to allocate gen spec");
1.44 +
1.45 + if (UseParNewGC && ParallelGCThreads > 0) {
1.46 + if (UseAdaptiveSizePolicy) {
1.47 + _generations[0] = new GenerationSpec(Generation::ASParNew,
1.48 + _initial_gen0_size, _max_gen0_size);
1.49 + } else {
1.50 + _generations[0] = new GenerationSpec(Generation::ParNew,
1.51 + _initial_gen0_size, _max_gen0_size);
1.52 + }
1.53 + } else {
1.54 + _generations[0] = new GenerationSpec(Generation::DefNew,
1.55 + _initial_gen0_size, _max_gen0_size);
1.56 + }
1.57 + if (UseAdaptiveSizePolicy) {
1.58 + _generations[1] = new GenerationSpec(Generation::ASConcurrentMarkSweep,
1.59 + _initial_gen1_size, _max_gen1_size);
1.60 + } else {
1.61 + _generations[1] = new GenerationSpec(Generation::ConcurrentMarkSweep,
1.62 + _initial_gen1_size, _max_gen1_size);
1.63 + }
1.64 +
1.65 + if (_generations[0] == NULL || _generations[1] == NULL) {
1.66 + vm_exit_during_initialization("Unable to allocate gen spec");
1.67 + }
1.68 +}
1.69 +
1.70 +void ConcurrentMarkSweepPolicy::initialize_size_policy(size_t init_eden_size,
1.71 + size_t init_promo_size,
1.72 + size_t init_survivor_size) {
1.73 + double max_gc_minor_pause_sec = ((double) MaxGCMinorPauseMillis)/1000.0;
1.74 + double max_gc_pause_sec = ((double) MaxGCPauseMillis)/1000.0;
1.75 + _size_policy = new CMSAdaptiveSizePolicy(init_eden_size,
1.76 + init_promo_size,
1.77 + init_survivor_size,
1.78 + max_gc_minor_pause_sec,
1.79 + max_gc_pause_sec,
1.80 + GCTimeRatio);
1.81 +}
1.82 +
1.83 +void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
1.84 + // initialize the policy counters - 2 collectors, 3 generations
1.85 + if (UseParNewGC && ParallelGCThreads > 0) {
1.86 + _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3);
1.87 + }
1.88 + else {
1.89 + _gc_policy_counters = new GCPolicyCounters("Copy:CMS", 2, 3);
1.90 + }
1.91 +}
1.92 +
1.93 +// Returns true if the incremental mode is enabled.
1.94 +bool ConcurrentMarkSweepPolicy::has_soft_ended_eden()
1.95 +{
1.96 + return CMSIncrementalMode;
1.97 +}
1.98 +
1.99 +
1.100 +//
1.101 +// ASConcurrentMarkSweepPolicy methods
1.102 +//
1.103 +
1.104 +void ASConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
1.105 +
1.106 + assert(size_policy() != NULL, "A size policy is required");
1.107 + // initialize the policy counters - 2 collectors, 3 generations
1.108 + if (UseParNewGC && ParallelGCThreads > 0) {
1.109 + _gc_policy_counters = new CMSGCAdaptivePolicyCounters("ParNew:CMS", 2, 3,
1.110 + size_policy());
1.111 + }
1.112 + else {
1.113 + _gc_policy_counters = new CMSGCAdaptivePolicyCounters("Copy:CMS", 2, 3,
1.114 + size_policy());
1.115 + }
1.116 +}
