truffle: src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp annotate

annotate src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp @ 993:54b3b351d6f9

Merge

author	jrose
date	Wed, 23 Sep 2009 23:56:15 -0700
parents	6cb8e9df7174
children	035d2e036a9b

rev	line source
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1 /*
579 0fbdb4381b99 6814575: Update copyright year xdono parents: 549 diff changeset	2 * Copyright 2001-2009 Sun Microsystems, Inc. All Rights Reserved.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	4 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	7 * published by the Free Software Foundation.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	8 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	13 * accompanied this code).
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	14 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	18 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	20 * CA 95054 USA or visit www.sun.com if you need additional information or
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	21 * have any questions.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	22 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	23 */
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	24
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	25 // Forward decl
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	26 class ConcurrentG1RefineThread;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	27 class G1RemSet;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	28
549 fe3d7c11b4b7 6700941: G1: allocation spec missing for some G1 classes apetrusenko parents: 342 diff changeset	29 class ConcurrentG1Refine: public CHeapObj {
794 315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	30 ConcurrentG1RefineThread** _threads;
315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	31 int _n_threads;
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	32
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	33 // The cache for card refinement.
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	34 bool _use_cache;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	35 bool _def_use_cache;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	36
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	37 size_t _n_periods; // Used as clearing epoch
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	38
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	39 // An evicting cache of the number of times each card
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	40 // is accessed. Reduces, but does not eliminate, the amount
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	41 // of duplicated processing of dirty cards.
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	42
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	43 enum SomePrivateConstants {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	44 epoch_bits = 32,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	45 card_num_shift = epoch_bits,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	46 epoch_mask = AllBits,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	47 card_num_mask = AllBits,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	48
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	49 // The initial cache size is approximately this fraction
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	50 // of a maximal cache (i.e. the size needed for all cards
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	51 // in the heap)
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	52 InitialCacheFraction = 512
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	53 };
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	54
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	55 const static julong card_num_mask_in_place =
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	56 (julong) card_num_mask << card_num_shift;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	57
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	58 typedef struct {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	59 julong _value; // \| card_num \| epoch \|
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	60 } CardEpochCacheEntry;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	61
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	62 julong make_epoch_entry(unsigned int card_num, unsigned int epoch) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	63 assert(0 <= card_num && card_num < _max_n_card_counts, "Bounds");
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	64 assert(0 <= epoch && epoch <= _n_periods, "must be");
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	65
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	66 return ((julong) card_num << card_num_shift) \| epoch;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	67 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	68
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	69 unsigned int extract_epoch(julong v) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	70 return (v & epoch_mask);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	71 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	72
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	73 unsigned int extract_card_num(julong v) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	74 return (v & card_num_mask_in_place) >> card_num_shift;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	75 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	76
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	77 typedef struct {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	78 unsigned char _count;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	79 unsigned char _evict_count;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	80 } CardCountCacheEntry;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	81
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	82 CardCountCacheEntry* _card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	83 CardEpochCacheEntry* _card_epochs;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	84
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	85 // The current number of buckets in the card count cache
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	86 unsigned _n_card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	87
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	88 // The max number of buckets required for the number of
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	89 // cards for the entire reserved heap
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	90 unsigned _max_n_card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	91
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	92 // Possible sizes of the cache: odd primes that roughly double in size.
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	93 // (See jvmtiTagMap.cpp).
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	94 static int _cc_cache_sizes[];
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	95
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	96 // The index in _cc_cache_sizes corresponding to the size of
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	97 // _card_counts.
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	98 int _cache_size_index;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	99
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	100 bool _expand_card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	101
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	102 const jbyte* _ct_bot;
889 15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	103
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	104 jbyte** _hot_cache;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	105 int _hot_cache_size;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	106 int _n_hot;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	107 int _hot_cache_idx;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	108
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	109 int _hot_cache_par_chunk_size;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	110 volatile int _hot_cache_par_claimed_idx;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	111
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	112 // Needed to workaround 6817995
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	113 CardTableModRefBS* _ct_bs;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	114 G1CollectedHeap* _g1h;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	115
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	116 // Expands the array that holds the card counts to the next size up
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	117 void expand_card_count_cache();
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	118
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	119 // hash a given key (index of card_ptr) with the specified size
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	120 static unsigned int hash(size_t key, int size) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	121 return (unsigned int) key % size;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	122 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	123
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	124 // hash a given key (index of card_ptr)
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	125 unsigned int hash(size_t key) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	126 return hash(key, _n_card_counts);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	127 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	128
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	129 unsigned ptr_2_card_num(jbyte* card_ptr) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	130 return (unsigned) (card_ptr - _ct_bot);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	131 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	132
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	133 jbyte* card_num_2_ptr(unsigned card_num) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	134 return (jbyte*) (_ct_bot + card_num);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	135 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	136
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	137 // Returns the count of this card after incrementing it.
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	138 jbyte* add_card_count(jbyte* card_ptr, int* count, bool* defer);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	139
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	140 // Returns true if this card is in a young region
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	141 bool is_young_card(jbyte* card_ptr);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	142
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	143 public:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	144 ConcurrentG1Refine();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	145 ~ConcurrentG1Refine();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	146
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	147 void init(); // Accomplish some initialization that has to wait.
794 315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	148 void stop();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	149
794 315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	150 // Iterate over the conc refine threads
315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	151 void threads_do(ThreadClosure *tc);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	152
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	153 // If this is the first entry for the slot, writes into the cache and
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	154 // returns NULL. If it causes an eviction, returns the evicted pointer.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	155 // Otherwise, its a cache hit, and returns NULL.
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	156 jbyte* cache_insert(jbyte* card_ptr, bool* defer);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	157
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	158 // Process the cached entries.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	159 void clean_up_cache(int worker_i, G1RemSet* g1rs);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	160
889 15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	161 // Set up for parallel processing of the cards in the hot cache
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	162 void clear_hot_cache_claimed_index() {
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	163 _hot_cache_par_claimed_idx = 0;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	164 }
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	165
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	166 // Discard entries in the hot cache.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	167 void clear_hot_cache() {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	168 _hot_cache_idx = 0; _n_hot = 0;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	169 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	170
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	171 bool hot_cache_is_empty() { return _n_hot == 0; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	172
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	173 bool use_cache() { return _use_cache; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	174 void set_use_cache(bool b) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	175 if (b) _use_cache = _def_use_cache;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	176 else _use_cache = false;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	177 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	178
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	179 void clear_and_record_card_counts();
795 215f81b4d9b3 6841831: G1: assert(contains_reference(from),"We just added it!") fires iveresov parents: 794 diff changeset	180
215f81b4d9b3 6841831: G1: assert(contains_reference(from),"We just added it!") fires iveresov parents: 794 diff changeset	181 static size_t thread_num();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	182 };

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp @ 993:54b3b351d6f9