graal-compiler: src/share/vm/gc_implementation/g1/g1RemSet.hpp annotate

annotate src/share/vm/gc_implementation/g1/g1RemSet.hpp @ 10372:e72f7eecc96d

8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen Summary: Fixed the output of G1SummarizeRSetStats: too small datatype for the number of concurrently processed cards, added concurrent remembered set thread time retrieval for Linux and Windows (BSD uses os::elapsedTime() now), and other cleanup. The information presented during VM operation is now relative to the previous output, not always cumulative if G1SummarizeRSetStatsPeriod > 0. At VM exit, the code prints a cumulative summary. Reviewed-by: johnc, jwilhelm

author	tschatzl
date	Tue, 28 May 2013 09:32:06 +0200
parents	194f52aa2f23
children	5888334c9c24

rev	line source
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1 /*
10246 194f52aa2f23 7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap johnc parents: 10182 diff changeset	2 * Copyright (c) 2001, 2013, 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: 890 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 890 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: 890 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
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	27
10372 e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	28 #include "gc_implementation/g1/g1RemSetSummary.hpp"
e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	29
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	30 // A G1RemSet provides ways of iterating over pointers into a selected
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	31 // collection set.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	32
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	33 class G1CollectedHeap;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	34 class CardTableModRefBarrierSet;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	35 class ConcurrentG1Refine;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	36
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	37 // A G1RemSet in which each heap region has a rem set that records the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	38 // external heap references into it. Uses a mod ref bs to track updates,
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	39 // so that they can be used to update the individual region remsets.
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	40
6197 d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1) zgu parents: 4839 diff changeset	41 class G1RemSet: public CHeapObj<mtGC> {
10372 e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	42 private:
e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	43 G1RemSetSummary _prev_period_summary;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	44 protected:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	45 G1CollectedHeap* _g1;
10372 e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	46 size_t _conc_refine_cards;
4728 441e946dc1af 7121618: Change type of number of GC workers to unsigned int. jmasa parents: 4097 diff changeset	47 uint n_workers();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	48
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	49 protected:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	50 enum SomePrivateConstants {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	51 UpdateRStoMergeSync = 0,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	52 MergeRStoDoDirtySync = 1,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	53 DoDirtySync = 2,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	54 LastSync = 3,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	55
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	56 SeqTask = 0,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	57 NumSeqTasks = 1
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	58 };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	59
10182 5c93c1f61226 8011724: G1: Stack allocate instances of HeapRegionRemSetIterator johnc parents: 6725 diff changeset	60 CardTableModRefBS* _ct_bs;
5c93c1f61226 8011724: G1: Stack allocate instances of HeapRegionRemSetIterator johnc parents: 6725 diff changeset	61 SubTasksDone* _seq_task;
5c93c1f61226 8011724: G1: Stack allocate instances of HeapRegionRemSetIterator johnc parents: 6725 diff changeset	62 G1CollectorPolicy* _g1p;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	63
10182 5c93c1f61226 8011724: G1: Stack allocate instances of HeapRegionRemSetIterator johnc parents: 6725 diff changeset	64 ConcurrentG1Refine* _cg1r;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	65
10182 5c93c1f61226 8011724: G1: Stack allocate instances of HeapRegionRemSetIterator johnc parents: 6725 diff changeset	66 size_t* _cards_scanned;
5c93c1f61226 8011724: G1: Stack allocate instances of HeapRegionRemSetIterator johnc parents: 6725 diff changeset	67 size_t _total_cards_scanned;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	68
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	69 // Used for caching the closure that is responsible for scanning
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	70 // references into the collection set.
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	71 OopsInHeapRegionClosure** _cset_rs_update_cl;
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	72
10372 e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	73 // Print the given summary info
e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	74 virtual void print_summary_info(G1RemSetSummary * summary, const char * header = NULL);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	75 public:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	76 // This is called to reset dual hash tables after the gc pause
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	77 // is finished and the initial hash table is no longer being
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	78 // scanned.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	79 void cleanupHRRS();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	80
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	81 G1RemSet(G1CollectedHeap* g1, CardTableModRefBS* ct_bs);
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	82 ~G1RemSet();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	83
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	84 // Invoke "blk->do_oop" on all pointers into the CS in objects in regions
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	85 // outside the CS (having invoked "blk->set_region" to set the "from"
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	86 // region correctly beforehand.) The "worker_i" param is for the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	87 // parallel case where the number of the worker thread calling this
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	88 // function can be helpful in partitioning the work to be done. It
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	89 // should be the same as the "i" passed to the calling thread's
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	90 // work(i) function. In the sequential case this param will be ingored.
10246 194f52aa2f23 7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap johnc parents: 10182 diff changeset	91 void oops_into_collection_set_do(OopsInHeapRegionClosure* blk, int worker_i);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	92
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	93 // Prepare for and cleanup after an oops_into_collection_set_do
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	94 // call. Must call each of these once before and after (in sequential
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	95 // code) any threads call oops_into_collection_set_do. (This offers an
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	96 // opportunity to sequential setup and teardown of structures needed by a
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	97 // parallel iteration over the CS's RS.)
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	98 void prepare_for_oops_into_collection_set_do();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	99 void cleanup_after_oops_into_collection_set_do();
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	100
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	101 void scanRS(OopsInHeapRegionClosure* oc, int worker_i);
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	102 void updateRS(DirtyCardQueue* into_cset_dcq, int worker_i);
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	103
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	104 CardTableModRefBS* ct_bs() { return _ct_bs; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	105 size_t cardsScanned() { return _total_cards_scanned; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	106
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	107 // Record, if necessary, the fact that *p (where "p" is in region "from",
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	108 // which is required to be non-NULL) has changed to a new non-NULL value.
1960 878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	109 template <class T> void write_ref(HeapRegion* from, T* p);
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	110 template <class T> void par_write_ref(HeapRegion* from, T* p, int tid);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	111
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	112 // Requires "region_bm" and "card_bm" to be bitmaps with 1 bit per region
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	113 // or card, respectively, such that a region or card with a corresponding
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	114 // 0 bit contains no part of any live object. Eliminates any remembered
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	115 // set entries that correspond to dead heap ranges.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	116 void scrub(BitMap* region_bm, BitMap* card_bm);
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	117
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	118 // Like the above, but assumes is called in parallel: "worker_num" is the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	119 // parallel thread id of the current thread, and "claim_val" is the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	120 // value that should be used to claim heap regions.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	121 void scrub_par(BitMap* region_bm, BitMap* card_bm,
4728 441e946dc1af 7121618: Change type of number of GC workers to unsigned int. jmasa parents: 4097 diff changeset	122 uint worker_num, int claim_val);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	123
10246 194f52aa2f23 7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap johnc parents: 10182 diff changeset	124 // Refine the card corresponding to "card_ptr".
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	125 // If check_for_refs_into_cset is true, a true result is returned
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	126 // if the given card contains oops that have references into the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	127 // current collection set.
10246 194f52aa2f23 7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap johnc parents: 10182 diff changeset	128 virtual bool refine_card(jbyte* card_ptr,
194f52aa2f23 7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap johnc parents: 10182 diff changeset	129 int worker_i,
194f52aa2f23 7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap johnc parents: 10182 diff changeset	130 bool check_for_refs_into_cset);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	131
10372 e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	132 // Print accumulated summary info from the start of the VM.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	133 virtual void print_summary_info();
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	134
10372 e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	135 // Print accumulated summary info from the last time called.
e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	136 virtual void print_periodic_summary_info();
e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	137
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	138 // Prepare remembered set for verification.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	139 virtual void prepare_for_verify();
10372 e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	140
e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	141 size_t conc_refine_cards() const {
e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	142 return _conc_refine_cards;
e72f7eecc96d 8013895: G1: G1SummarizeRSetStats output on Linux needs improvemen tschatzl parents: 10246 diff changeset	143 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	144 };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	145
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	146 class CountNonCleanMemRegionClosure: public MemRegionClosure {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	147 G1CollectedHeap* _g1;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	148 int _n;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	149 HeapWord* _start_first;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	150 public:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	151 CountNonCleanMemRegionClosure(G1CollectedHeap* g1) :
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	152 _g1(g1), _n(0), _start_first(NULL)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	153 {}
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	154 void do_MemRegion(MemRegion mr);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	155 int n() { return _n; };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	156 HeapWord* start_first() { return _start_first; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	157 };
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	158
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	159 class UpdateRSOopClosure: public ExtendedOopClosure {
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	160 HeapRegion* _from;
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	161 G1RemSet* _rs;
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	162 int _worker_i;
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	163
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	164 template <class T> void do_oop_work(T* p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	165
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	166 public:
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	167 UpdateRSOopClosure(G1RemSet* rs, int worker_i = 0) :
1960 878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	168 _from(NULL), _rs(rs), _worker_i(worker_i)
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	169 {}
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	170
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	171 void set_from(HeapRegion* from) {
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	172 assert(from != NULL, "from region must be non-NULL");
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	173 _from = from;
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	174 }
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	175
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	176 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	177 virtual void do_oop(oop* p) { do_oop_work(p); }
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	178
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	179 // Override: this closure is idempotent.
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	180 // bool idempotent() { return true; }
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	181 bool apply_to_weak_ref_discovered_field() { return true; }
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	182 };
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	183
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	184 class UpdateRSetImmediate: public OopsInHeapRegionClosure {
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	185 private:
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	186 G1RemSet* _g1_rem_set;
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	187
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	188 template <class T> void do_oop_work(T* p);
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	189 public:
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	190 UpdateRSetImmediate(G1RemSet* rs) :
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	191 _g1_rem_set(rs) {}
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	192
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	193 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	194 virtual void do_oop( oop* p) { do_oop_work(p); }
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	195 };
1960 878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	196
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	197
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	198 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_HPP

Mercurial > hg > graal-compiler

annotate src/share/vm/gc_implementation/g1/g1RemSet.hpp @ 10372:e72f7eecc96d