truffle: src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp annotate

annotate src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp @ 12233:40136aa2cdb1

8010722: assert: failed: heap size is too big for compressed oops Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation. Reviewed-by: stefank, dholmes

author	tschatzl
date	Wed, 11 Sep 2013 16:25:02 +0200
parents	2e093b564241
children	b9a918201d47 d55c004e1d4d

rev	line source
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1 /*
6629 c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	2 * Copyright (c) 2001, 2012, 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: 752 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 752 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: 752 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: 1718 diff changeset	25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	27
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	28 #include "gc_implementation/g1/concurrentMark.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	29 #include "gc_implementation/g1/g1CollectedHeap.hpp"
2433 abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	30 #include "gc_implementation/g1/g1AllocRegion.inline.hpp"
1973 631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	31 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
2149 7e37af9d69ef 7011379: G1: overly long concurrent marking cycles tonyp parents: 2134 diff changeset	32 #include "gc_implementation/g1/heapRegionSeq.inline.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	33 #include "utilities/taskqueue.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	34
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	35 // Inline functions for G1CollectedHeap
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	36
3766 c3f1170908be 7045330: G1: Simplify/fix the HeapRegionSeq class tonyp parents: 2433 diff changeset	37 template <class T>
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	38 inline HeapRegion*
3766 c3f1170908be 7045330: G1: Simplify/fix the HeapRegionSeq class tonyp parents: 2433 diff changeset	39 G1CollectedHeap::heap_region_containing(const T addr) const {
c3f1170908be 7045330: G1: Simplify/fix the HeapRegionSeq class tonyp parents: 2433 diff changeset	40 HeapRegion* hr = _hrs.addr_to_region((HeapWord*) addr);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	41 // hr can be null if addr in perm_gen
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	42 if (hr != NULL && hr->continuesHumongous()) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	43 hr = hr->humongous_start_region();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	44 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	45 return hr;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	46 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	47
3766 c3f1170908be 7045330: G1: Simplify/fix the HeapRegionSeq class tonyp parents: 2433 diff changeset	48 template <class T>
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	49 inline HeapRegion*
3766 c3f1170908be 7045330: G1: Simplify/fix the HeapRegionSeq class tonyp parents: 2433 diff changeset	50 G1CollectedHeap::heap_region_containing_raw(const T addr) const {
c3f1170908be 7045330: G1: Simplify/fix the HeapRegionSeq class tonyp parents: 2433 diff changeset	51 assert(_g1_reserved.contains((const void*) addr), "invariant");
c3f1170908be 7045330: G1: Simplify/fix the HeapRegionSeq class tonyp parents: 2433 diff changeset	52 HeapRegion* res = _hrs.addr_to_region_unsafe((HeapWord*) addr);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	53 return res;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	54 }
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 inline bool G1CollectedHeap::obj_in_cs(oop obj) {
3766 c3f1170908be 7045330: G1: Simplify/fix the HeapRegionSeq class tonyp parents: 2433 diff changeset	57 HeapRegion* r = _hrs.addr_to_region((HeapWord*) obj);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	58 return r != NULL && r->in_collection_set();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	59 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	60
1973 631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	61 inline HeapWord*
2433 abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	62 G1CollectedHeap::attempt_allocation(size_t word_size,
8853 2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 6629 diff changeset	63 unsigned int* gc_count_before_ret,
2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 6629 diff changeset	64 int* gclocker_retry_count_ret) {
2134 b158bed62ef5 6994297: G1: do first-level slow-path allocations with a CAS tonyp parents: 1991 diff changeset	65 assert_heap_not_locked_and_not_at_safepoint();
2433 abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	66 assert(!isHumongous(word_size), "attempt_allocation() should not "
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	67 "be called for humongous allocation requests");
1973 631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	68
2433 abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	69 HeapWord* result = _mutator_alloc_region.attempt_allocation(word_size,
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	70 false /* bot_updates */);
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	71 if (result == NULL) {
8853 2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 6629 diff changeset	72 result = attempt_allocation_slow(word_size,
2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 6629 diff changeset	73 gc_count_before_ret,
2e093b564241 7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine mgerdin parents: 6629 diff changeset	74 gclocker_retry_count_ret);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	75 }
2433 abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	76 assert_heap_not_locked();
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	77 if (result != NULL) {
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	78 dirty_young_block(result, word_size);
2134 b158bed62ef5 6994297: G1: do first-level slow-path allocations with a CAS tonyp parents: 1991 diff changeset	79 }
2433 abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	80 return result;
2134 b158bed62ef5 6994297: G1: do first-level slow-path allocations with a CAS tonyp parents: 1991 diff changeset	81 }
b158bed62ef5 6994297: G1: do first-level slow-path allocations with a CAS tonyp parents: 1991 diff changeset	82
3830 f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	83 inline HeapWord* G1CollectedHeap::survivor_attempt_allocation(size_t
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	84 word_size) {
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	85 assert(!isHumongous(word_size),
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	86 "we should not be seeing humongous-size allocations in this path");
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	87
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	88 HeapWord* result = _survivor_gc_alloc_region.attempt_allocation(word_size,
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	89 false /* bot_updates */);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	90 if (result == NULL) {
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	91 MutexLockerEx x(FreeList_lock, Mutex::_no_safepoint_check_flag);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	92 result = _survivor_gc_alloc_region.attempt_allocation_locked(word_size,
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	93 false /* bot_updates */);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	94 }
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	95 if (result != NULL) {
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	96 dirty_young_block(result, word_size);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	97 }
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	98 return result;
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	99 }
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	100
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	101 inline HeapWord* G1CollectedHeap::old_attempt_allocation(size_t word_size) {
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	102 assert(!isHumongous(word_size),
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	103 "we should not be seeing humongous-size allocations in this path");
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	104
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	105 HeapWord* result = _old_gc_alloc_region.attempt_allocation(word_size,
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	106 true /* bot_updates */);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	107 if (result == NULL) {
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	108 MutexLockerEx x(FreeList_lock, Mutex::_no_safepoint_check_flag);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	109 result = _old_gc_alloc_region.attempt_allocation_locked(word_size,
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	110 true /* bot_updates */);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	111 }
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	112 return result;
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	113 }
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	114
1973 631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	115 // It dirties the cards that cover the block so that so that the post
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	116 // write barrier never queues anything when updating objects on this
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	117 // block. It is assumed (and in fact we assert) that the block
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	118 // belongs to a young region.
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	119 inline void
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	120 G1CollectedHeap::dirty_young_block(HeapWord* start, size_t word_size) {
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	121 assert_heap_not_locked();
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	122
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	123 // Assign the containing region to containing_hr so that we don't
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	124 // have to keep calling heap_region_containing_raw() in the
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	125 // asserts below.
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	126 DEBUG_ONLY(HeapRegion* containing_hr = heap_region_containing_raw(start);)
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	127 assert(containing_hr != NULL && start != NULL && word_size > 0,
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	128 "pre-condition");
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	129 assert(containing_hr->is_in(start), "it should contain start");
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	130 assert(containing_hr->is_young(), "it should be young");
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	131 assert(!containing_hr->isHumongous(), "it should not be humongous");
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	132
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	133 HeapWord* end = start + word_size;
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	134 assert(containing_hr->is_in(end - 1), "it should also contain end - 1");
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	135
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	136 MemRegion mr(start, end);
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	137 ((CardTableModRefBS*)_g1h->barrier_set())->dirty(mr);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	138 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	139
1709 5f429ee79634 6966222: G1: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	140 inline RefToScanQueue* G1CollectedHeap::task_queue(int i) const {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	141 return _task_queues->queue(i);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	142 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	143
6629 c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	144 inline bool G1CollectedHeap::isMarkedPrev(oop obj) const {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	145 return _cm->prevMarkBitMap()->isMarked((HeapWord *)obj);
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
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	148 inline bool G1CollectedHeap::isMarkedNext(oop obj) const {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	149 return _cm->nextMarkBitMap()->isMarked((HeapWord *)obj);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	150 }
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	151
6629 c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	152 #ifndef PRODUCT
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	153 // Support for G1EvacuationFailureALot
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	154
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	155 inline bool
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	156 G1CollectedHeap::evacuation_failure_alot_for_gc_type(bool gcs_are_young,
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	157 bool during_initial_mark,
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	158 bool during_marking) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	159 bool res = false;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	160 if (during_marking) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	161 res \|= G1EvacuationFailureALotDuringConcMark;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	162 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	163 if (during_initial_mark) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	164 res \|= G1EvacuationFailureALotDuringInitialMark;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	165 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	166 if (gcs_are_young) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	167 res \|= G1EvacuationFailureALotDuringYoungGC;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	168 } else {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	169 // GCs are mixed
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	170 res \|= G1EvacuationFailureALotDuringMixedGC;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	171 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	172 return res;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	173 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	174
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	175 inline void
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	176 G1CollectedHeap::set_evacuation_failure_alot_for_current_gc() {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	177 if (G1EvacuationFailureALot) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	178 // Note we can't assert that _evacuation_failure_alot_for_current_gc
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	179 // is clear here. It may have been set during a previous GC but that GC
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	180 // did not copy enough objects (i.e. G1EvacuationFailureALotCount) to
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	181 // trigger an evacuation failure and clear the flags and and counts.
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	182
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	183 // Check if we have gone over the interval.
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	184 const size_t gc_num = total_collections();
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	185 const size_t elapsed_gcs = gc_num - _evacuation_failure_alot_gc_number;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	186
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	187 _evacuation_failure_alot_for_current_gc = (elapsed_gcs >= G1EvacuationFailureALotInterval);
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	188
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	189 // Now check if G1EvacuationFailureALot is enabled for the current GC type.
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	190 const bool gcs_are_young = g1_policy()->gcs_are_young();
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	191 const bool during_im = g1_policy()->during_initial_mark_pause();
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	192 const bool during_marking = mark_in_progress();
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	193
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	194 _evacuation_failure_alot_for_current_gc &=
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	195 evacuation_failure_alot_for_gc_type(gcs_are_young,
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	196 during_im,
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	197 during_marking);
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	198 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	199 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	200
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	201 inline bool
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	202 G1CollectedHeap::evacuation_should_fail() {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	203 if (!G1EvacuationFailureALot \|\| !_evacuation_failure_alot_for_current_gc) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	204 return false;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	205 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	206 // G1EvacuationFailureALot is in effect for current GC
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	207 // Access to _evacuation_failure_alot_count is not atomic;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	208 // the value does not have to be exact.
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	209 if (++_evacuation_failure_alot_count < G1EvacuationFailureALotCount) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	210 return false;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	211 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	212 _evacuation_failure_alot_count = 0;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	213 return true;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	214 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	215
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	216 inline void G1CollectedHeap::reset_evacuation_should_fail() {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	217 if (G1EvacuationFailureALot) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	218 _evacuation_failure_alot_gc_number = total_collections();
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	219 _evacuation_failure_alot_count = 0;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	220 _evacuation_failure_alot_for_current_gc = false;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	221 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	222 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	223 #endif // #ifndef PRODUCT
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	224
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	225 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp @ 12233:40136aa2cdb1