Mercurial > hg > graal-jvmci-8
annotate src/share/vm/gc_implementation/g1/g1CollectedHeap.inline.hpp @ 22923:c04f46b4abe4
8068036: assert(is_available(index)) failed in G1 cset
Summary: Some verification code iterated over the heap using the region mapping array. This is not allowed. Changed to use the regular iteration method with closure.
Reviewed-by: jwilhelm, brutisso
author | tschatzl |
---|---|
date | Tue, 31 Mar 2015 11:36:37 +0200 |
parents | c132be0fb74d |
children | fb69749583e8 |
rev | line source |
---|---|
342 | 1 /* |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17833
diff
changeset
|
2 * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved. |
342 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP |
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP | |
27 | |
28 #include "gc_implementation/g1/concurrentMark.hpp" | |
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 | 31 #include "gc_implementation/g1/g1CollectorPolicy.hpp" |
12835
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
parents:
12343
diff
changeset
|
32 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" |
20377
a8ea2f110d87
8054819: Rename HeapRegionSeq to HeapRegionManager
tschatzl
parents:
20336
diff
changeset
|
33 #include "gc_implementation/g1/heapRegionManager.inline.hpp" |
17736
58fc1b1523dc
8034079: G1: Refactor the HeapRegionSet hierarchy
brutisso
parents:
17467
diff
changeset
|
34 #include "gc_implementation/g1/heapRegionSet.inline.hpp" |
20197
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
35 #include "runtime/orderAccess.inline.hpp" |
1972 | 36 #include "utilities/taskqueue.hpp" |
37 | |
22901
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
38 PLABStats* G1CollectedHeap::alloc_buffer_stats(InCSetState dest) { |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
39 switch (dest.value()) { |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
40 case InCSetState::Young: |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
41 return &_survivor_plab_stats; |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
42 case InCSetState::Old: |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
43 return &_old_plab_stats; |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
44 default: |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
45 ShouldNotReachHere(); |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
46 return NULL; // Keep some compilers happy |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
47 } |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
48 } |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
49 |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
50 size_t G1CollectedHeap::desired_plab_sz(InCSetState dest) { |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
51 size_t gclab_word_size = alloc_buffer_stats(dest)->desired_plab_sz(); |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
52 // Prevent humongous PLAB sizes for two reasons: |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
53 // * PLABs are allocated using a similar paths as oops, but should |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
54 // never be in a humongous region |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
55 // * Allowing humongous PLABs needlessly churns the region free lists |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
56 return MIN2(_humongous_object_threshold_in_words, gclab_word_size); |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
57 } |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
58 |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
59 HeapWord* G1CollectedHeap::par_allocate_during_gc(InCSetState dest, |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
60 size_t word_size, |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
61 AllocationContext_t context) { |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
62 switch (dest.value()) { |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
63 case InCSetState::Young: |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
64 return survivor_attempt_allocation(word_size, context); |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
65 case InCSetState::Old: |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
66 return old_attempt_allocation(word_size, context); |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
67 default: |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
68 ShouldNotReachHere(); |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
69 return NULL; // Keep some compilers happy |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
70 } |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
71 } |
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
72 |
342 | 73 // Inline functions for G1CollectedHeap |
74 | |
20445
e5668dcf12e9
8057818: collect allocation context statistics at gc pauses
jcoomes
parents:
20404
diff
changeset
|
75 inline AllocationContextStats& G1CollectedHeap::allocation_context_stats() { |
e5668dcf12e9
8057818: collect allocation context statistics at gc pauses
jcoomes
parents:
20404
diff
changeset
|
76 return _allocation_context_stats; |
e5668dcf12e9
8057818: collect allocation context statistics at gc pauses
jcoomes
parents:
20404
diff
changeset
|
77 } |
e5668dcf12e9
8057818: collect allocation context statistics at gc pauses
jcoomes
parents:
20404
diff
changeset
|
78 |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
79 // Return the region with the given index. It assumes the index is valid. |
20377
a8ea2f110d87
8054819: Rename HeapRegionSeq to HeapRegionManager
tschatzl
parents:
20336
diff
changeset
|
80 inline HeapRegion* G1CollectedHeap::region_at(uint index) const { return _hrm.at(index); } |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
81 |
20296
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
82 inline uint G1CollectedHeap::addr_to_region(HeapWord* addr) const { |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
83 assert(is_in_reserved(addr), |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
84 err_msg("Cannot calculate region index for address "PTR_FORMAT" that is outside of the heap ["PTR_FORMAT", "PTR_FORMAT")", |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
85 p2i(addr), p2i(_reserved.start()), p2i(_reserved.end()))); |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
86 return (uint)(pointer_delta(addr, _reserved.start(), sizeof(uint8_t)) >> HeapRegion::LogOfHRGrainBytes); |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
87 } |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
88 |
20336
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
89 inline HeapWord* G1CollectedHeap::bottom_addr_for_region(uint index) const { |
20377
a8ea2f110d87
8054819: Rename HeapRegionSeq to HeapRegionManager
tschatzl
parents:
20336
diff
changeset
|
90 return _hrm.reserved().start() + index * HeapRegion::GrainWords; |
20336
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
91 } |
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
92 |
3766 | 93 template <class T> |
20336
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
94 inline HeapRegion* G1CollectedHeap::heap_region_containing_raw(const T addr) const { |
20335
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
95 assert(addr != NULL, "invariant"); |
20336
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
96 assert(is_in_g1_reserved((const void*) addr), |
20335
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
97 err_msg("Address "PTR_FORMAT" is outside of the heap ranging from ["PTR_FORMAT" to "PTR_FORMAT")", |
20336
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
98 p2i((void*)addr), p2i(g1_reserved().start()), p2i(g1_reserved().end()))); |
20377
a8ea2f110d87
8054819: Rename HeapRegionSeq to HeapRegionManager
tschatzl
parents:
20336
diff
changeset
|
99 return _hrm.addr_to_region((HeapWord*) addr); |
342 | 100 } |
101 | |
3766 | 102 template <class T> |
20336
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
103 inline HeapRegion* G1CollectedHeap::heap_region_containing(const T addr) const { |
20335
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
104 HeapRegion* hr = heap_region_containing_raw(addr); |
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
105 if (hr->continuesHumongous()) { |
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
106 return hr->humongous_start_region(); |
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
107 } |
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
108 return hr; |
342 | 109 } |
110 | |
20197
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
111 inline void G1CollectedHeap::reset_gc_time_stamp() { |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
112 _gc_time_stamp = 0; |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
113 OrderAccess::fence(); |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
114 // Clear the cached CSet starting regions and time stamps. |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
115 // Their validity is dependent on the GC timestamp. |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
116 clear_cset_start_regions(); |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
117 } |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
118 |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
119 inline void G1CollectedHeap::increment_gc_time_stamp() { |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
120 ++_gc_time_stamp; |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
121 OrderAccess::fence(); |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
122 } |
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
17937
diff
changeset
|
123 |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
124 inline void G1CollectedHeap::old_set_remove(HeapRegion* hr) { |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
125 _old_set.remove(hr); |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
126 } |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
127 |
342 | 128 inline bool G1CollectedHeap::obj_in_cs(oop obj) { |
20377
a8ea2f110d87
8054819: Rename HeapRegionSeq to HeapRegionManager
tschatzl
parents:
20336
diff
changeset
|
129 HeapRegion* r = _hrm.addr_to_region((HeapWord*) obj); |
342 | 130 return r != NULL && r->in_collection_set(); |
131 } | |
132 | |
20336
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
133 inline HeapWord* G1CollectedHeap::attempt_allocation(size_t word_size, |
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
134 unsigned int* gc_count_before_ret, |
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
135 int* gclocker_retry_count_ret) { |
2134
b158bed62ef5
6994297: G1: do first-level slow-path allocations with a CAS
tonyp
parents:
1991
diff
changeset
|
136 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
|
137 assert(!isHumongous(word_size), "attempt_allocation() should not " |
abdfc822206f
7023069: G1: Introduce symmetric locking in the slow allocation path
tonyp
parents:
2152
diff
changeset
|
138 "be called for humongous allocation requests"); |
1973 | 139 |
20404
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
140 AllocationContext_t context = AllocationContext::current(); |
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
141 HeapWord* result = _allocator->mutator_alloc_region(context)->attempt_allocation(word_size, |
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
142 false /* bot_updates */); |
2433
abdfc822206f
7023069: G1: Introduce symmetric locking in the slow allocation path
tonyp
parents:
2152
diff
changeset
|
143 if (result == NULL) { |
8853
2e093b564241
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
mgerdin
parents:
6629
diff
changeset
|
144 result = attempt_allocation_slow(word_size, |
20404
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
145 context, |
8853
2e093b564241
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
mgerdin
parents:
6629
diff
changeset
|
146 gc_count_before_ret, |
2e093b564241
7014552: gc/lock/jni/jnilockXXX works too slow on 1-processor machine
mgerdin
parents:
6629
diff
changeset
|
147 gclocker_retry_count_ret); |
342 | 148 } |
2433
abdfc822206f
7023069: G1: Introduce symmetric locking in the slow allocation path
tonyp
parents:
2152
diff
changeset
|
149 assert_heap_not_locked(); |
abdfc822206f
7023069: G1: Introduce symmetric locking in the slow allocation path
tonyp
parents:
2152
diff
changeset
|
150 if (result != NULL) { |
abdfc822206f
7023069: G1: Introduce symmetric locking in the slow allocation path
tonyp
parents:
2152
diff
changeset
|
151 dirty_young_block(result, word_size); |
2134
b158bed62ef5
6994297: G1: do first-level slow-path allocations with a CAS
tonyp
parents:
1991
diff
changeset
|
152 } |
2433
abdfc822206f
7023069: G1: Introduce symmetric locking in the slow allocation path
tonyp
parents:
2152
diff
changeset
|
153 return result; |
2134
b158bed62ef5
6994297: G1: do first-level slow-path allocations with a CAS
tonyp
parents:
1991
diff
changeset
|
154 } |
b158bed62ef5
6994297: G1: do first-level slow-path allocations with a CAS
tonyp
parents:
1991
diff
changeset
|
155 |
20404
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
156 inline HeapWord* G1CollectedHeap::survivor_attempt_allocation(size_t word_size, |
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
157 AllocationContext_t context) { |
3830
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
158 assert(!isHumongous(word_size), |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
159 "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
|
160 |
20404
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
161 HeapWord* result = _allocator->survivor_gc_alloc_region(context)->attempt_allocation(word_size, |
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
162 false /* bot_updates */); |
3830
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
163 if (result == NULL) { |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
164 MutexLockerEx x(FreeList_lock, Mutex::_no_safepoint_check_flag); |
20404
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
165 result = _allocator->survivor_gc_alloc_region(context)->attempt_allocation_locked(word_size, |
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
166 false /* bot_updates */); |
3830
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
167 } |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
168 if (result != NULL) { |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
169 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
|
170 } |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
171 return result; |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
172 } |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
173 |
20404
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
174 inline HeapWord* G1CollectedHeap::old_attempt_allocation(size_t word_size, |
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
175 AllocationContext_t context) { |
3830
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
176 assert(!isHumongous(word_size), |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
177 "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
|
178 |
20404
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
179 HeapWord* result = _allocator->old_gc_alloc_region(context)->attempt_allocation(word_size, |
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
180 true /* bot_updates */); |
3830
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
181 if (result == NULL) { |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
182 MutexLockerEx x(FreeList_lock, Mutex::_no_safepoint_check_flag); |
20404
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
183 result = _allocator->old_gc_alloc_region(context)->attempt_allocation_locked(word_size, |
227a9e5e4b4a
8057536: Refactor G1 to allow context specific allocations
sjohanss
parents:
20377
diff
changeset
|
184 true /* bot_updates */); |
3830
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
185 } |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
186 return result; |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
187 } |
f44782f04dd4
7039627: G1: avoid BOT updates for survivor allocations and dirty survivor regions incrementally
tonyp
parents:
3766
diff
changeset
|
188 |
1973 | 189 // It dirties the cards that cover the block so that so that the post |
190 // write barrier never queues anything when updating objects on this | |
191 // block. It is assumed (and in fact we assert) that the block | |
192 // belongs to a young region. | |
193 inline void | |
194 G1CollectedHeap::dirty_young_block(HeapWord* start, size_t word_size) { | |
195 assert_heap_not_locked(); | |
196 | |
197 // Assign the containing region to containing_hr so that we don't | |
198 // have to keep calling heap_region_containing_raw() in the | |
199 // asserts below. | |
200 DEBUG_ONLY(HeapRegion* containing_hr = heap_region_containing_raw(start);) | |
20335
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
201 assert(word_size > 0, "pre-condition"); |
1973 | 202 assert(containing_hr->is_in(start), "it should contain start"); |
203 assert(containing_hr->is_young(), "it should be young"); | |
204 assert(!containing_hr->isHumongous(), "it should not be humongous"); | |
205 | |
206 HeapWord* end = start + word_size; | |
207 assert(containing_hr->is_in(end - 1), "it should also contain end - 1"); | |
208 | |
209 MemRegion mr(start, end); | |
12835
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
parents:
12343
diff
changeset
|
210 g1_barrier_set()->g1_mark_as_young(mr); |
342 | 211 } |
212 | |
1709 | 213 inline RefToScanQueue* G1CollectedHeap::task_queue(int i) const { |
342 | 214 return _task_queues->queue(i); |
215 } | |
216 | |
6629
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
217 inline bool G1CollectedHeap::isMarkedPrev(oop obj) const { |
342 | 218 return _cm->prevMarkBitMap()->isMarked((HeapWord *)obj); |
219 } | |
220 | |
221 inline bool G1CollectedHeap::isMarkedNext(oop obj) const { | |
222 return _cm->nextMarkBitMap()->isMarked((HeapWord *)obj); | |
223 } | |
1972 | 224 |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
225 // This is a fast test on whether a reference points into the |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
226 // collection set or not. Assume that the reference |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
227 // points into the heap. |
20296
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
228 inline bool G1CollectedHeap::is_in_cset(oop obj) { |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
229 bool ret = _in_cset_fast_test.is_in_cset((HeapWord*)obj); |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
230 // let's make sure the result is consistent with what the slower |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
231 // test returns |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
232 assert( ret || !obj_in_cs(obj), "sanity"); |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
233 assert(!ret || obj_in_cs(obj), "sanity"); |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
234 return ret; |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
235 } |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
236 |
20296
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
237 bool G1CollectedHeap::is_in_cset_or_humongous(const oop obj) { |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
238 return _in_cset_fast_test.is_in_cset_or_humongous((HeapWord*)obj); |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
239 } |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
240 |
22901
c132be0fb74d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
20445
diff
changeset
|
241 InCSetState G1CollectedHeap::in_cset_state(const oop obj) { |
20296
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
242 return _in_cset_fast_test.at((HeapWord*)obj); |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
243 } |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
244 |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
245 void G1CollectedHeap::register_humongous_region_with_in_cset_fast_test(uint index) { |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
246 _in_cset_fast_test.set_humongous(index); |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
247 } |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
248 |
6629
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
249 #ifndef PRODUCT |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
250 // Support for G1EvacuationFailureALot |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
251 |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
252 inline bool |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
253 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
|
254 bool during_initial_mark, |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
255 bool during_marking) { |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
256 bool res = false; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
257 if (during_marking) { |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
258 res |= G1EvacuationFailureALotDuringConcMark; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
259 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
260 if (during_initial_mark) { |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
261 res |= G1EvacuationFailureALotDuringInitialMark; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
262 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
263 if (gcs_are_young) { |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
264 res |= G1EvacuationFailureALotDuringYoungGC; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
265 } else { |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
266 // GCs are mixed |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
267 res |= G1EvacuationFailureALotDuringMixedGC; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
268 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
269 return res; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
270 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
271 |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
272 inline void |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
273 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
|
274 if (G1EvacuationFailureALot) { |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
275 // 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
|
276 // 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
|
277 // 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
|
278 // 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
|
279 |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
280 // 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
|
281 const size_t gc_num = total_collections(); |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
282 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
|
283 |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
284 _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
|
285 |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
286 // 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
|
287 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
|
288 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
|
289 const bool during_marking = mark_in_progress(); |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
290 |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
291 _evacuation_failure_alot_for_current_gc &= |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
292 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
|
293 during_im, |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
294 during_marking); |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
295 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
296 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
297 |
20336
6701abbc4441
8054818: Refactor HeapRegionSeq to manage heap region and auxiliary data
tschatzl
parents:
20335
diff
changeset
|
298 inline bool G1CollectedHeap::evacuation_should_fail() { |
6629
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
299 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
|
300 return false; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
301 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
302 // G1EvacuationFailureALot is in effect for current GC |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
303 // 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
|
304 // 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
|
305 if (++_evacuation_failure_alot_count < G1EvacuationFailureALotCount) { |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
306 return false; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
307 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
308 _evacuation_failure_alot_count = 0; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
309 return true; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
310 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
311 |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
312 inline void G1CollectedHeap::reset_evacuation_should_fail() { |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
313 if (G1EvacuationFailureALot) { |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
314 _evacuation_failure_alot_gc_number = total_collections(); |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
315 _evacuation_failure_alot_count = 0; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
316 _evacuation_failure_alot_for_current_gc = false; |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
317 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
318 } |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
319 #endif // #ifndef PRODUCT |
c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
johnc
parents:
3830
diff
changeset
|
320 |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
321 inline bool G1CollectedHeap::is_in_young(const oop obj) { |
20335
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
322 if (obj == NULL) { |
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
323 return false; |
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
324 } |
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
325 return heap_region_containing(obj)->is_young(); |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
326 } |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
327 |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
328 // We don't need barriers for initializing stores to objects |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
329 // in the young gen: for the SATB pre-barrier, there is no |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
330 // pre-value that needs to be remembered; for the remembered-set |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
331 // update logging post-barrier, we don't maintain remembered set |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
332 // information for young gen objects. |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
333 inline bool G1CollectedHeap::can_elide_initializing_store_barrier(oop new_obj) { |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
334 return is_in_young(new_obj); |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
335 } |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
336 |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
337 inline bool G1CollectedHeap::is_obj_dead(const oop obj) const { |
20335
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
338 if (obj == NULL) { |
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
339 return false; |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
340 } |
20335
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
341 return is_obj_dead(obj, heap_region_containing(obj)); |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
342 } |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
343 |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
344 inline bool G1CollectedHeap::is_obj_ill(const oop obj) const { |
20335
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
345 if (obj == NULL) { |
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
346 return false; |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
347 } |
20335
eec72fa4b108
8040722: G1: Clean up usages of heap_region_containing
brutisso
parents:
20296
diff
changeset
|
348 return is_obj_ill(obj, heap_region_containing(obj)); |
17833
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
349 } |
bfdf528be8e8
8038498: Fix includes and C inlining after 8035330
tschatzl
parents:
17736
diff
changeset
|
350 |
20296
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
351 inline void G1CollectedHeap::set_humongous_is_live(oop obj) { |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
352 uint region = addr_to_region((HeapWord*)obj); |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
353 // We not only set the "live" flag in the humongous_is_live table, but also |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
354 // reset the entry in the _in_cset_fast_test table so that subsequent references |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
355 // to the same humongous object do not go into the slow path again. |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
356 // This is racy, as multiple threads may at the same time enter here, but this |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
357 // is benign. |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
358 // During collection we only ever set the "live" flag, and only ever clear the |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
359 // entry in the in_cset_fast_table. |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
360 // We only ever evaluate the contents of these tables (in the VM thread) after |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
361 // having synchronized the worker threads with the VM thread, or in the same |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
362 // thread (i.e. within the VM thread). |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
363 if (!_humongous_is_live.is_live(region)) { |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
364 _humongous_is_live.set_live(region); |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
365 _in_cset_fast_test.clear_humongous(region); |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
366 } |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
367 } |
a3953c777565
8027959: Early reclamation of large objects in G1
tschatzl
parents:
20223
diff
changeset
|
368 |
1972 | 369 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_INLINE_HPP |