graal-compiler: src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp annotate

annotate src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp @ 1111:44f61c24ddab

6862387: tune concurrent refinement further Summary: Reworked the concurrent refinement: threads activation, feedback-based threshold adjustment, other miscellaneous fixes. Reviewed-by: apetrusenko, tonyp

author	iveresov
date	Wed, 16 Dec 2009 15:12:51 -0800
parents	035d2e036a9b
children	b81f3572f355

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;
1111 44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	32 int _n_worker_threads;
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	33 /*
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	34 * The value of the update buffer queue length falls into one of 3 zones:
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	35 * green, yellow, red. If the value is in [0, green) nothing is
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	36 * done, the buffers are left unprocessed to enable the caching effect of the
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	37 * dirtied cards. In the yellow zone [green, yellow) the concurrent refinement
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	38 * threads are gradually activated. In [yellow, red) all threads are
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	39 * running. If the length becomes red (max queue length) the mutators start
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	40 * processing the buffers.
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	41 *
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	42 * There are some interesting cases (with G1AdaptiveConcRefine turned off):
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	43 * 1) green = yellow = red = 0. In this case the mutator will process all
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	44 * buffers. Except for those that are created by the deferred updates
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	45 * machinery during a collection.
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	46 * 2) green = 0. Means no caching. Can be a good way to minimize the
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	47 * amount of time spent updating rsets during a collection.
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	48 */
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	49 int _green_zone;
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	50 int _yellow_zone;
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	51 int _red_zone;
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	52
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	53 int _thread_threshold_step;
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	54
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	55 // Reset the threshold step value based of the current zone boundaries.
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	56 void reset_threshold_step();
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	57
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	58 // The cache for card refinement.
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	59 bool _use_cache;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	60 bool _def_use_cache;
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 size_t _n_periods; // Used as clearing epoch
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	63
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	64 // 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	65 // 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	66 // of duplicated processing of dirty cards.
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	67
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	68 enum SomePrivateConstants {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	69 epoch_bits = 32,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	70 card_num_shift = epoch_bits,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	71 epoch_mask = AllBits,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	72 card_num_mask = AllBits,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	73
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	74 // The initial cache size is approximately this fraction
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	75 // 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	76 // in the heap)
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	77 InitialCacheFraction = 512
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	78 };
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	79
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	80 const static julong card_num_mask_in_place =
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	81 (julong) card_num_mask << card_num_shift;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	82
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	83 typedef struct {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	84 julong _value; // \| card_num \| epoch \|
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	85 } CardEpochCacheEntry;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	86
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	87 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	88 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	89 assert(0 <= epoch && epoch <= _n_periods, "must be");
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	90
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	91 return ((julong) card_num << card_num_shift) \| epoch;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	92 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	93
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	94 unsigned int extract_epoch(julong v) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	95 return (v & epoch_mask);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	96 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	97
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	98 unsigned int extract_card_num(julong v) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	99 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	100 }
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 typedef struct {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	103 unsigned char _count;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	104 unsigned char _evict_count;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	105 } CardCountCacheEntry;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	106
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	107 CardCountCacheEntry* _card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	108 CardEpochCacheEntry* _card_epochs;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	109
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	110 // 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	111 unsigned _n_card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	112
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	113 // 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	114 // cards for the entire reserved heap
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	115 unsigned _max_n_card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	116
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	117 // 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	118 // (See jvmtiTagMap.cpp).
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	119 static int _cc_cache_sizes[];
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	120
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	121 // 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	122 // _card_counts.
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	123 int _cache_size_index;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	124
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	125 bool _expand_card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	126
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	127 const jbyte* _ct_bot;
889 15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	128
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	129 jbyte** _hot_cache;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	130 int _hot_cache_size;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	131 int _n_hot;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	132 int _hot_cache_idx;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	133
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	134 int _hot_cache_par_chunk_size;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	135 volatile int _hot_cache_par_claimed_idx;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	136
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	137 // Needed to workaround 6817995
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	138 CardTableModRefBS* _ct_bs;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	139 G1CollectedHeap* _g1h;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	140
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	141 // 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	142 void expand_card_count_cache();
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	143
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	144 // 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	145 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	146 return (unsigned int) key % size;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	147 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	148
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	149 // hash a given key (index of card_ptr)
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	150 unsigned int hash(size_t key) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	151 return hash(key, _n_card_counts);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	152 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	153
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	154 unsigned ptr_2_card_num(jbyte* card_ptr) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	155 return (unsigned) (card_ptr - _ct_bot);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	156 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	157
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	158 jbyte* card_num_2_ptr(unsigned card_num) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	159 return (jbyte*) (_ct_bot + card_num);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	160 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	161
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	162 // 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	163 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	164
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	165 // 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	166 bool is_young_card(jbyte* card_ptr);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	167
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	168 public:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	169 ConcurrentG1Refine();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	170 ~ConcurrentG1Refine();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	171
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	172 void init(); // Accomplish some initialization that has to wait.
794 315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	173 void stop();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	174
1111 44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	175 void reinitialize_threads();
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	176
794 315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	177 // Iterate over the conc refine threads
315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	178 void threads_do(ThreadClosure *tc);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	179
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	180 // 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	181 // returns NULL. If it causes an eviction, returns the evicted pointer.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	182 // 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	183 jbyte* cache_insert(jbyte* card_ptr, bool* defer);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	184
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	185 // Process the cached entries.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	186 void clean_up_cache(int worker_i, G1RemSet* g1rs);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	187
889 15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	188 // 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	189 void clear_hot_cache_claimed_index() {
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	190 _hot_cache_par_claimed_idx = 0;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	191 }
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	192
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	193 // Discard entries in the hot cache.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	194 void clear_hot_cache() {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	195 _hot_cache_idx = 0; _n_hot = 0;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	196 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	197
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	198 bool hot_cache_is_empty() { return _n_hot == 0; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	199
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	200 bool use_cache() { return _use_cache; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	201 void set_use_cache(bool b) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	202 if (b) _use_cache = _def_use_cache;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	203 else _use_cache = false;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	204 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	205
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	206 void clear_and_record_card_counts();
795 215f81b4d9b3 6841831: G1: assert(contains_reference(from),"We just added it!") fires iveresov parents: 794 diff changeset	207
1111 44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	208 static int thread_num();
1019 035d2e036a9b 6885041: G1: inconsistent thread dump tonyp parents: 890 diff changeset	209
035d2e036a9b 6885041: G1: inconsistent thread dump tonyp parents: 890 diff changeset	210 void print_worker_threads_on(outputStream* st) const;
1111 44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	211
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	212 void set_green_zone(int x) { _green_zone = x; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	213 void set_yellow_zone(int x) { _yellow_zone = x; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	214 void set_red_zone(int x) { _red_zone = x; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	215
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	216 int green_zone() const { return _green_zone; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	217 int yellow_zone() const { return _yellow_zone; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	218 int red_zone() const { return _red_zone; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	219
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	220 int total_thread_num() const { return _n_threads; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	221 int worker_thread_num() const { return _n_worker_threads; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	222
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	223 int thread_threshold_step() const { return _thread_threshold_step; }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	224 };

Mercurial > hg > graal-compiler

annotate src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp @ 1111:44f61c24ddab