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

annotate src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp @ 6629:c9814fadeb38

7041879: G1: introduce stress testing parameter to cause frequent evacuation failures Summary: Add the flags G1EvacuationFailureALot flag (and supporting flags) to force trigger evacuation failures. The support flags control how often to trigger an evacuation failure and during which types of evacuation pause. This functionality is analogous to that of PromotionFailureALot for the other collectors. Reviewed-by: brutisso

author	johnc
date	Tue, 28 Aug 2012 15:20:08 -0700
parents	f44782f04dd4
children	992f62c457b0 2e093b564241

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,
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	63 unsigned int* gc_count_before_ret) {
2134 b158bed62ef5 6994297: G1: do first-level slow-path allocations with a CAS tonyp parents: 1991 diff changeset	64 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	65 assert(!isHumongous(word_size), "attempt_allocation() should not "
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	66 "be called for humongous allocation requests");
1973 631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	67
2433 abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	68 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	69 false /* bot_updates */);
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	70 if (result == NULL) {
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	71 result = attempt_allocation_slow(word_size, gc_count_before_ret);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	72 }
2433 abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	73 assert_heap_not_locked();
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	74 if (result != NULL) {
abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	75 dirty_young_block(result, word_size);
2134 b158bed62ef5 6994297: G1: do first-level slow-path allocations with a CAS tonyp parents: 1991 diff changeset	76 }
2433 abdfc822206f 7023069: G1: Introduce symmetric locking in the slow allocation path tonyp parents: 2152 diff changeset	77 return result;
2134 b158bed62ef5 6994297: G1: do first-level slow-path allocations with a CAS tonyp parents: 1991 diff changeset	78 }
b158bed62ef5 6994297: G1: do first-level slow-path allocations with a CAS tonyp parents: 1991 diff changeset	79
3830 f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	80 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	81 word_size) {
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	82 assert(!isHumongous(word_size),
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	83 "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	84
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	85 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	86 false /* bot_updates */);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	87 if (result == NULL) {
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	88 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	89 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	90 false /* bot_updates */);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	91 }
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	92 if (result != NULL) {
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	93 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	94 }
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	95 return result;
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	96 }
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 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	99 assert(!isHumongous(word_size),
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	100 "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	101
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	102 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	103 true /* bot_updates */);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	104 if (result == NULL) {
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	105 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	106 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	107 true /* bot_updates */);
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	108 }
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	109 return result;
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	110 }
f44782f04dd4 7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally tonyp parents: 3766 diff changeset	111
1973 631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	112 // 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	113 // write barrier never queues anything when updating objects on this
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	114 // 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	115 // belongs to a young region.
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	116 inline void
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	117 G1CollectedHeap::dirty_young_block(HeapWord* start, size_t word_size) {
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	118 assert_heap_not_locked();
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	119
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	120 // 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	121 // have to keep calling heap_region_containing_raw() in the
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	122 // asserts below.
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	123 DEBUG_ONLY(HeapRegion* containing_hr = heap_region_containing_raw(start);)
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	124 assert(containing_hr != NULL && start != NULL && word_size > 0,
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	125 "pre-condition");
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	126 assert(containing_hr->is_in(start), "it should contain start");
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	127 assert(containing_hr->is_young(), "it should be young");
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	128 assert(!containing_hr->isHumongous(), "it should not be humongous");
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	129
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	130 HeapWord* end = start + word_size;
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	131 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	132
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	133 MemRegion mr(start, end);
631f79e71e90 6974966: G1: unnecessary direct-to-old allocations tonyp parents: 1972 diff changeset	134 ((CardTableModRefBS*)_g1h->barrier_set())->dirty(mr);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	135 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	136
1709 5f429ee79634 6966222: G1: simplify TaskQueue overflow handling jcoomes parents: 1552 diff changeset	137 inline RefToScanQueue* G1CollectedHeap::task_queue(int i) const {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	138 return _task_queues->queue(i);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	139 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	140
6629 c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	141 inline bool G1CollectedHeap::isMarkedPrev(oop obj) const {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	142 return _cm->prevMarkBitMap()->isMarked((HeapWord *)obj);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	143 }
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 inline bool G1CollectedHeap::isMarkedNext(oop obj) const {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	146 return _cm->nextMarkBitMap()->isMarked((HeapWord *)obj);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	147 }
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	148
6629 c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	149 #ifndef PRODUCT
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	150 // Support for G1EvacuationFailureALot
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	151
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	152 inline bool
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	153 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	154 bool during_initial_mark,
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	155 bool during_marking) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	156 bool res = false;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	157 if (during_marking) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	158 res \|= G1EvacuationFailureALotDuringConcMark;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	159 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	160 if (during_initial_mark) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	161 res \|= G1EvacuationFailureALotDuringInitialMark;
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 (gcs_are_young) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	164 res \|= G1EvacuationFailureALotDuringYoungGC;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	165 } else {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	166 // GCs are mixed
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	167 res \|= G1EvacuationFailureALotDuringMixedGC;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	168 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	169 return res;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	170 }
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 inline void
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	173 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	174 if (G1EvacuationFailureALot) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	175 // 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	176 // 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	177 // 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	178 // 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	179
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	180 // 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	181 const size_t gc_num = total_collections();
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	182 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	183
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	184 _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	185
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	186 // 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	187 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	188 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	189 const bool during_marking = mark_in_progress();
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	190
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	191 _evacuation_failure_alot_for_current_gc &=
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	192 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	193 during_im,
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	194 during_marking);
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	195 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	196 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	197
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	198 inline bool
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	199 G1CollectedHeap::evacuation_should_fail() {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	200 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	201 return false;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	202 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	203 // G1EvacuationFailureALot is in effect for current GC
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	204 // 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	205 // 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	206 if (++_evacuation_failure_alot_count < G1EvacuationFailureALotCount) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	207 return false;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	208 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	209 _evacuation_failure_alot_count = 0;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	210 return true;
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
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	213 inline void G1CollectedHeap::reset_evacuation_should_fail() {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	214 if (G1EvacuationFailureALot) {
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	215 _evacuation_failure_alot_gc_number = total_collections();
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	216 _evacuation_failure_alot_count = 0;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	217 _evacuation_failure_alot_for_current_gc = false;
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	218 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	219 }
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	220 #endif // #ifndef PRODUCT
c9814fadeb38 7041879: G1: introduce stress testing parameter to cause frequent evacuation failures johnc parents: 3830 diff changeset	221
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1718 diff changeset	222 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp @ 6629:c9814fadeb38