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

annotate src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp @ 1705:2d160770d2e5

6814437: G1: remove the _new_refs array Summary: The per-worker _new_refs array is used to hold references that point into the collection set. It is populated during RSet updating and subsequently processed. In the event of an evacuation failure it processed again to recreate the RSets of regions in the collection set. Remove the per-worker _new_refs array by processing the references directly. Use a DirtyCardQueue to hold the cards containing the references so that the RSets of regions in the collection set can be recreated when handling an evacuation failure. Reviewed-by: iveresov, jmasa, tonyp

author	johnc
date	Mon, 02 Aug 2010 12:51:43 -0700
parents	c18cbe5936b8
children	f95d63e2154a

rev	line source
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1 /*
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. 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 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1282 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1282 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1282 diff changeset	21 * questions.
342 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 *
1282 b81f3572f355 6928059: G1: command line parameter renaming tonyp parents: 1111 diff changeset	42 * There are some interesting cases (when G1UseAdaptiveConcRefinement
b81f3572f355 6928059: G1: command line parameter renaming tonyp parents: 1111 diff changeset	43 * is turned off):
1111 44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	44 * 1) green = yellow = red = 0. In this case the mutator will process all
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	45 * buffers. Except for those that are created by the deferred updates
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	46 * machinery during a collection.
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	47 * 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	48 * amount of time spent updating rsets during a collection.
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	49 */
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	50 int _green_zone;
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	51 int _yellow_zone;
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	52 int _red_zone;
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	53
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	54 int _thread_threshold_step;
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	55
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	56 // Reset the threshold step value based of the current zone boundaries.
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	57 void reset_threshold_step();
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	58
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	59 // The cache for card refinement.
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	60 bool _use_cache;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	61 bool _def_use_cache;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	62
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	63 size_t _n_periods; // Used as clearing epoch
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	64
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	65 // 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	66 // 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	67 // of duplicated processing of dirty cards.
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	68
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	69 enum SomePrivateConstants {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	70 epoch_bits = 32,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	71 card_num_shift = epoch_bits,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	72 epoch_mask = AllBits,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	73 card_num_mask = AllBits,
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	74
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	75 // The initial cache size is approximately this fraction
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	76 // 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	77 // in the heap)
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	78 InitialCacheFraction = 512
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
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	81 const static julong card_num_mask_in_place =
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	82 (julong) card_num_mask << card_num_shift;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	83
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	84 typedef struct {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	85 julong _value; // \| card_num \| epoch \|
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	86 } CardEpochCacheEntry;
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 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	89 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	90 assert(0 <= epoch && epoch <= _n_periods, "must be");
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 return ((julong) card_num << card_num_shift) \| epoch;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	93 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	94
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	95 unsigned int extract_epoch(julong v) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	96 return (v & epoch_mask);
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
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	99 unsigned int extract_card_num(julong v) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	100 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	101 }
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	102
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	103 typedef struct {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	104 unsigned char _count;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	105 unsigned char _evict_count;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	106 } CardCountCacheEntry;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	107
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	108 CardCountCacheEntry* _card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	109 CardEpochCacheEntry* _card_epochs;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	110
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	111 // 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	112 unsigned _n_card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	113
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	114 // 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	115 // cards for the entire reserved heap
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	116 unsigned _max_n_card_counts;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	117
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	118 // 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	119 // (See jvmtiTagMap.cpp).
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	120 static int _cc_cache_sizes[];
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	121
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	122 // 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	123 // _card_counts.
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	124 int _cache_size_index;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	125
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	126 bool _expand_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 const jbyte* _ct_bot;
889 15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	129
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	130 jbyte** _hot_cache;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	131 int _hot_cache_size;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	132 int _n_hot;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	133 int _hot_cache_idx;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	134
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	135 int _hot_cache_par_chunk_size;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	136 volatile int _hot_cache_par_claimed_idx;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	137
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	138 // Needed to workaround 6817995
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	139 CardTableModRefBS* _ct_bs;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	140 G1CollectedHeap* _g1h;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	141
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	142 // 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	143 void expand_card_count_cache();
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	144
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	145 // 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	146 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	147 return (unsigned int) key % size;
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	148 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	149
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	150 // hash a given key (index of card_ptr)
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	151 unsigned int hash(size_t key) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	152 return hash(key, _n_card_counts);
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
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	155 unsigned ptr_2_card_num(jbyte* card_ptr) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	156 return (unsigned) (card_ptr - _ct_bot);
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
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	159 jbyte* card_num_2_ptr(unsigned card_num) {
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	160 return (jbyte*) (_ct_bot + card_num);
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
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	163 // 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	164 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	165
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	166 // 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	167 bool is_young_card(jbyte* card_ptr);
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 889 diff changeset	168
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	169 public:
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 ~ConcurrentG1Refine();
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 void init(); // Accomplish some initialization that has to wait.
794 315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	174 void stop();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	175
1111 44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	176 void reinitialize_threads();
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	177
794 315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	178 // Iterate over the conc refine threads
315a5d70b295 6484957: G1: parallel concurrent refinement iveresov parents: 579 diff changeset	179 void threads_do(ThreadClosure *tc);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	180
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	181 // 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	182 // returns NULL. If it causes an eviction, returns the evicted pointer.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	183 // 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	184 jbyte* cache_insert(jbyte* card_ptr, bool* defer);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	185
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	186 // Process the cached entries.
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	187 void clean_up_cache(int worker_i, G1RemSet* g1rs, DirtyCardQueue* into_cset_dcq);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	188
889 15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	189 // 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	190 void clear_hot_cache_claimed_index() {
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	191 _hot_cache_par_claimed_idx = 0;
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	192 }
15c5903cf9e1 6865703: G1: Parallelize hot card cache cleanup johnc parents: 795 diff changeset	193
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	194 // Discard entries in the hot cache.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	195 void clear_hot_cache() {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	196 _hot_cache_idx = 0; _n_hot = 0;
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
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	199 bool hot_cache_is_empty() { return _n_hot == 0; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	200
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	201 bool use_cache() { return _use_cache; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	202 void set_use_cache(bool b) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	203 if (b) _use_cache = _def_use_cache;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	204 else _use_cache = false;
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
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	207 void clear_and_record_card_counts();
795 215f81b4d9b3 6841831: G1: assert(contains_reference(from),"We just added it!") fires iveresov parents: 794 diff changeset	208
1111 44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	209 static int thread_num();
1019 035d2e036a9b 6885041: G1: inconsistent thread dump tonyp parents: 890 diff changeset	210
035d2e036a9b 6885041: G1: inconsistent thread dump tonyp parents: 890 diff changeset	211 void print_worker_threads_on(outputStream* st) const;
1111 44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	212
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	213 void set_green_zone(int x) { _green_zone = x; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	214 void set_yellow_zone(int x) { _yellow_zone = x; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	215 void set_red_zone(int x) { _red_zone = x; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	216
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	217 int green_zone() const { return _green_zone; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	218 int yellow_zone() const { return _yellow_zone; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	219 int red_zone() const { return _red_zone; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	220
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	221 int total_thread_num() const { return _n_threads; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	222 int worker_thread_num() const { return _n_worker_threads; }
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	223
44f61c24ddab 6862387: tune concurrent refinement further iveresov parents: 1019 diff changeset	224 int thread_threshold_step() const { return _thread_threshold_step; }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	225 };

Mercurial > hg > graal-compiler

annotate src/share/vm/gc_implementation/g1/concurrentG1Refine.hpp @ 1705:2d160770d2e5