Mercurial > hg > graal-jvmci-8
annotate src/share/vm/gc_implementation/g1/vm_operations_g1.hpp @ 22937:af8f16ac392c
8066771: Refactor VM GC operations caused by allocation failure
Reviewed-by: brutisso, jmasa
| author | mlarsson |
|---|---|
| date | Thu, 09 Apr 2015 15:59:26 +0200 |
| parents | fb69749583e8 |
| children |
| rev | line source |
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| 342 | 1 /* |
| 22936 | 2 * Copyright (c) 2001, 2015, 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 342 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP | |
| 27 | |
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28 #include "gc_implementation/g1/g1AllocationContext.hpp" |
| 1972 | 29 #include "gc_implementation/shared/vmGCOperations.hpp" |
| 30 | |
| 342 | 31 // VM_operations for the G1 collector. |
| 32 // VM_GC_Operation: | |
| 33 // - VM_CGC_Operation | |
| 34 // - VM_G1CollectFull | |
| 1973 | 35 // - VM_G1OperationWithAllocRequest |
| 36 // - VM_G1CollectForAllocation | |
| 37 // - VM_G1IncCollectionPause | |
| 38 | |
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39 class VM_G1OperationWithAllocRequest : public VM_CollectForAllocation { |
| 1973 | 40 protected: |
| 41 bool _pause_succeeded; | |
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42 AllocationContext_t _allocation_context; |
| 1973 | 43 |
| 44 public: | |
| 22936 | 45 VM_G1OperationWithAllocRequest(uint gc_count_before, |
| 46 size_t word_size, | |
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47 GCCause::Cause gc_cause) |
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48 : VM_CollectForAllocation(word_size, gc_count_before, gc_cause), |
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49 _pause_succeeded(false) {} |
| 1973 | 50 bool pause_succeeded() { return _pause_succeeded; } |
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51 void set_allocation_context(AllocationContext_t context) { _allocation_context = context; } |
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52 AllocationContext_t allocation_context() { return _allocation_context; } |
| 1973 | 53 }; |
| 342 | 54 |
| 55 class VM_G1CollectFull: public VM_GC_Operation { | |
| 1973 | 56 public: |
| 22936 | 57 VM_G1CollectFull(uint gc_count_before, |
| 58 uint full_gc_count_before, | |
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59 GCCause::Cause cause) |
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60 : VM_GC_Operation(gc_count_before, cause, full_gc_count_before, true) { } |
| 342 | 61 virtual VMOp_Type type() const { return VMOp_G1CollectFull; } |
| 62 virtual void doit(); | |
| 63 virtual const char* name() const { | |
| 64 return "full garbage-first collection"; | |
| 65 } | |
| 66 }; | |
| 67 | |
| 1973 | 68 class VM_G1CollectForAllocation: public VM_G1OperationWithAllocRequest { |
| 69 public: | |
| 22936 | 70 VM_G1CollectForAllocation(uint gc_count_before, |
| 1973 | 71 size_t word_size); |
| 342 | 72 virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; } |
| 73 virtual void doit(); | |
| 74 virtual const char* name() const { | |
| 75 return "garbage-first collection to satisfy allocation"; | |
| 76 } | |
| 77 }; | |
| 78 | |
| 1973 | 79 class VM_G1IncCollectionPause: public VM_G1OperationWithAllocRequest { |
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80 private: |
| 1973 | 81 bool _should_initiate_conc_mark; |
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82 bool _should_retry_gc; |
| 1973 | 83 double _target_pause_time_ms; |
| 22936 | 84 uint _old_marking_cycles_completed_before; |
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85 public: |
| 22936 | 86 VM_G1IncCollectionPause(uint gc_count_before, |
| 1973 | 87 size_t word_size, |
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88 bool should_initiate_conc_mark, |
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89 double target_pause_time_ms, |
| 1973 | 90 GCCause::Cause gc_cause); |
| 342 | 91 virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; } |
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92 virtual bool doit_prologue(); |
| 342 | 93 virtual void doit(); |
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94 virtual void doit_epilogue(); |
| 342 | 95 virtual const char* name() const { |
| 96 return "garbage-first incremental collection pause"; | |
| 97 } | |
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98 bool should_retry_gc() const { return _should_retry_gc; } |
| 342 | 99 }; |
| 100 | |
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101 // Concurrent GC stop-the-world operations such as remark and cleanup; |
| 342 | 102 // consider sharing these with CMS's counterparts. |
| 103 class VM_CGC_Operation: public VM_Operation { | |
| 104 VoidClosure* _cl; | |
| 105 const char* _printGCMessage; | |
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106 bool _needs_pll; |
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107 |
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108 protected: |
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109 // java.lang.ref.Reference support |
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110 void acquire_pending_list_lock(); |
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111 void release_and_notify_pending_list_lock(); |
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112 |
| 1973 | 113 public: |
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114 VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg, bool needs_pll) |
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115 : _cl(cl), _printGCMessage(printGCMsg), _needs_pll(needs_pll) { } |
| 342 | 116 virtual VMOp_Type type() const { return VMOp_CGC_Operation; } |
| 117 virtual void doit(); | |
| 118 virtual bool doit_prologue(); | |
| 119 virtual void doit_epilogue(); | |
| 120 virtual const char* name() const { | |
| 121 return "concurrent gc"; | |
| 122 } | |
| 123 }; | |
| 1972 | 124 |
| 125 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP |