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comparison src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp @ 20212:d7e2d5f2846b

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8027553: Change the in_cset_fast_test functionality to use the G1BiasedArray abstraction Summary: Instead of using a manually managed array for the in_cset_fast_test array, use a G1BiasedArray instance. Reviewed-by: brutisso, mgerdin
author tschatzl
date Mon, 21 Jul 2014 09:40:19 +0200
parents c49dcaf78a65
children 983092f35ff7
comparison
equal deleted inserted replaced
20211:82693fb204a5 20212:d7e2d5f2846b
1509 1509
1510 // Start a new incremental collection set for the next pause 1510 // Start a new incremental collection set for the next pause
1511 assert(g1_policy()->collection_set() == NULL, "must be"); 1511 assert(g1_policy()->collection_set() == NULL, "must be");
1512 g1_policy()->start_incremental_cset_building(); 1512 g1_policy()->start_incremental_cset_building();
1513 1513
1514 // Clear the _cset_fast_test bitmap in anticipation of adding
1515 // regions to the incremental collection set for the next
1516 // evacuation pause.
1517 clear_cset_fast_test(); 1514 clear_cset_fast_test();
1518 1515
1519 init_mutator_alloc_region(); 1516 init_mutator_alloc_region();
1520 1517
1521 double end = os::elapsedTime(); 1518 double end = os::elapsedTime();
1931 _expand_heap_after_alloc_failure(true), 1928 _expand_heap_after_alloc_failure(true),
1932 _surviving_young_words(NULL), 1929 _surviving_young_words(NULL),
1933 _old_marking_cycles_started(0), 1930 _old_marking_cycles_started(0),
1934 _old_marking_cycles_completed(0), 1931 _old_marking_cycles_completed(0),
1935 _concurrent_cycle_started(false), 1932 _concurrent_cycle_started(false),
1936 _in_cset_fast_test(NULL), 1933 _in_cset_fast_test(),
1937 _in_cset_fast_test_base(NULL),
1938 _dirty_cards_region_list(NULL), 1934 _dirty_cards_region_list(NULL),
1939 _worker_cset_start_region(NULL), 1935 _worker_cset_start_region(NULL),
1940 _worker_cset_start_region_time_stamp(NULL), 1936 _worker_cset_start_region_time_stamp(NULL),
1941 _gc_timer_stw(new (ResourceObj::C_HEAP, mtGC) STWGCTimer()), 1937 _gc_timer_stw(new (ResourceObj::C_HEAP, mtGC) STWGCTimer()),
1942 _gc_timer_cm(new (ResourceObj::C_HEAP, mtGC) ConcurrentGCTimer()), 1938 _gc_timer_cm(new (ResourceObj::C_HEAP, mtGC) ConcurrentGCTimer()),
2074 _bot_shared = new G1BlockOffsetSharedArray(_reserved, 2070 _bot_shared = new G1BlockOffsetSharedArray(_reserved,
2075 heap_word_size(init_byte_size)); 2071 heap_word_size(init_byte_size));
2076 2072
2077 _g1h = this; 2073 _g1h = this;
2078 2074
2079 _in_cset_fast_test_length = max_regions(); 2075 _in_cset_fast_test.initialize(_g1_reserved.start(), _g1_reserved.end(), HeapRegion::GrainBytes);
2080 _in_cset_fast_test_base =
2081 NEW_C_HEAP_ARRAY(bool, (size_t) _in_cset_fast_test_length, mtGC);
2082
2083 // We're biasing _in_cset_fast_test to avoid subtracting the
2084 // beginning of the heap every time we want to index; basically
2085 // it's the same with what we do with the card table.
2086 _in_cset_fast_test = _in_cset_fast_test_base -
2087 ((uintx) _g1_reserved.start() >> HeapRegion::LogOfHRGrainBytes);
2088
2089 // Clear the _cset_fast_test bitmap in anticipation of adding
2090 // regions to the incremental collection set for the first
2091 // evacuation pause.
2092 clear_cset_fast_test();
2093 2076
2094 // Create the ConcurrentMark data structure and thread. 2077 // Create the ConcurrentMark data structure and thread.
2095 // (Must do this late, so that "max_regions" is defined.) 2078 // (Must do this late, so that "max_regions" is defined.)
2096 _cm = new ConcurrentMark(this, heap_rs); 2079 _cm = new ConcurrentMark(this, heap_rs);
2097 if (_cm == NULL || !_cm->completed_initialization()) { 2080 if (_cm == NULL || !_cm->completed_initialization()) {
4143 cleanup_surviving_young_words(); 4126 cleanup_surviving_young_words();
4144 4127
4145 // Start a new incremental collection set for the next pause. 4128 // Start a new incremental collection set for the next pause.
4146 g1_policy()->start_incremental_cset_building(); 4129 g1_policy()->start_incremental_cset_building();
4147 4130
4148 // Clear the _cset_fast_test bitmap in anticipation of adding
4149 // regions to the incremental collection set for the next
4150 // evacuation pause.
4151 clear_cset_fast_test(); 4131 clear_cset_fast_test();
4152 4132
4153 _young_list->reset_sampled_info(); 4133 _young_list->reset_sampled_info();
4154 4134
4155 // Don't check the whole heap at this point as the 4135 // Don't check the whole heap at this point as the