35 #include "memory/generationSpec.hpp"
  36 #include "memory/space.hpp"
  37 #include "memory/universe.hpp"
  38 #include "runtime/arguments.hpp"
  39 #include "runtime/globals_extension.hpp"
  40 #include "runtime/handles.inline.hpp"
  41 #include "runtime/java.hpp"
  42 #include "runtime/thread.inline.hpp"
  43 #include "runtime/vmThread.hpp"
  44 
  45 //
  46 // ConcurrentMarkSweepPolicy methods
  47 //
  48 
  49 void ConcurrentMarkSweepPolicy::initialize_alignments() {
  50   _space_alignment = _gen_alignment = (uintx)Generation::GenGrain;
  51   _heap_alignment = compute_heap_alignment();
  52 }
  53 
  54 void ConcurrentMarkSweepPolicy::initialize_generations() {
  55   _generations = NEW_C_HEAP_ARRAY3(GenerationSpecPtr, number_of_generations(), mtGC,
  56     CURRENT_PC, AllocFailStrategy::RETURN_NULL);
  57   if (_generations == NULL)
  58     vm_exit_during_initialization("Unable to allocate gen spec");
  59 
  60   Generation::Name yg_name =
  61     UseParNewGC ? Generation::ParNew : Generation::DefNew;
  62   _generations[0] = new GenerationSpec(yg_name, _initial_young_size,
  63                                        _max_young_size);
  64   _generations[1] = new GenerationSpec(Generation::ConcurrentMarkSweep,
  65                                        _initial_old_size, _max_old_size);
  66 
  67   if (_generations[0] == NULL || _generations[1] == NULL) {
  68     vm_exit_during_initialization("Unable to allocate gen spec");
  69   }
  70 }
  71 
  72 void ConcurrentMarkSweepPolicy::initialize_size_policy(size_t init_eden_size,
  73                                                size_t init_promo_size,
  74                                                size_t init_survivor_size) {
  75   double max_gc_pause_sec = ((double) MaxGCPauseMillis)/1000.0;
  76   _size_policy = new AdaptiveSizePolicy(init_eden_size,
  77                                         init_promo_size,
  78                                         init_survivor_size,
  79                                         max_gc_pause_sec,
  80                                         GCTimeRatio);
  81 }
  82 
  83 void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
  84   // initialize the policy counters - 2 collectors, 3 generations
  85   if (UseParNewGC) {
  86     _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3);
  87   }

  35 #include "memory/generationSpec.hpp"
  36 #include "memory/space.hpp"
  37 #include "memory/universe.hpp"
  38 #include "runtime/arguments.hpp"
  39 #include "runtime/globals_extension.hpp"
  40 #include "runtime/handles.inline.hpp"
  41 #include "runtime/java.hpp"
  42 #include "runtime/thread.inline.hpp"
  43 #include "runtime/vmThread.hpp"
  44 
  45 //
  46 // ConcurrentMarkSweepPolicy methods
  47 //
  48 
  49 void ConcurrentMarkSweepPolicy::initialize_alignments() {
  50   _space_alignment = _gen_alignment = (uintx)Generation::GenGrain;
  51   _heap_alignment = compute_heap_alignment();
  52 }
  53 
  54 void ConcurrentMarkSweepPolicy::initialize_generations() {





  55   Generation::Name yg_name =
  56     UseParNewGC ? Generation::ParNew : Generation::DefNew;
  57   _young_gen_spec = new GenerationSpec(yg_name, _initial_young_size,
  58                                        _max_young_size, _gen_alignment);
  59   _old_gen_spec = new GenerationSpec(Generation::ConcurrentMarkSweep,
  60                                      _initial_old_size, _max_old_size, _gen_alignment);
  61 
  62   if (_young_gen_spec == NULL || _old_gen_spec == NULL) {
  63     vm_exit_during_initialization("Unable to allocate gen spec");
  64   }
  65 }
  66 
  67 void ConcurrentMarkSweepPolicy::initialize_size_policy(size_t init_eden_size,
  68                                                size_t init_promo_size,
  69                                                size_t init_survivor_size) {
  70   double max_gc_pause_sec = ((double) MaxGCPauseMillis)/1000.0;
  71   _size_policy = new AdaptiveSizePolicy(init_eden_size,
  72                                         init_promo_size,
  73                                         init_survivor_size,
  74                                         max_gc_pause_sec,
  75                                         GCTimeRatio);
  76 }
  77 
  78 void ConcurrentMarkSweepPolicy::initialize_gc_policy_counters() {
  79   // initialize the policy counters - 2 collectors, 3 generations
  80   if (UseParNewGC) {
  81     _gc_policy_counters = new GCPolicyCounters("ParNew:CMS", 2, 3);
  82   }