Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/vm_operations_g1.hpp @ 1610:79107c3a6bd5
6949307: G1: raise a vm error, do not core dump, if target pause time and target interval are inconsistent
Summary: First, change the guarantee to raising a vm error. Second, set the interval dynamically, and based on the pause time target, if it is not set explicitly.
Reviewed-by: ysr, johnc
author | tonyp |
---|---|
date | Fri, 07 May 2010 13:14:41 -0400 |
parents | c18cbe5936b8 |
children | 4e5661ba9d98 |
rev | line source |
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342 | 1 /* |
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2 * Copyright (c) 2001, 2009, Oracle and/or its affiliates. All rights reserved. |
342 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
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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 |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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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 | |
25 // VM_operations for the G1 collector. | |
26 // VM_GC_Operation: | |
27 // - VM_CGC_Operation | |
28 // - VM_G1CollectFull | |
29 // - VM_G1CollectForAllocation | |
30 // - VM_G1IncCollectionPause | |
31 // - VM_G1PopRegionCollectionPause | |
32 | |
33 class VM_G1CollectFull: public VM_GC_Operation { | |
34 private: | |
35 public: | |
36 VM_G1CollectFull(int gc_count_before, | |
37 GCCause::Cause gc_cause) | |
38 : VM_GC_Operation(gc_count_before) | |
39 { | |
40 _gc_cause = gc_cause; | |
41 } | |
42 ~VM_G1CollectFull() {} | |
43 virtual VMOp_Type type() const { return VMOp_G1CollectFull; } | |
44 virtual void doit(); | |
45 virtual const char* name() const { | |
46 return "full garbage-first collection"; | |
47 } | |
48 }; | |
49 | |
50 class VM_G1CollectForAllocation: public VM_GC_Operation { | |
51 private: | |
52 HeapWord* _res; | |
53 size_t _size; // size of object to be allocated | |
54 public: | |
55 VM_G1CollectForAllocation(size_t size, int gc_count_before) | |
56 : VM_GC_Operation(gc_count_before) { | |
57 _size = size; | |
58 _res = NULL; | |
59 } | |
60 ~VM_G1CollectForAllocation() {} | |
61 virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; } | |
62 virtual void doit(); | |
63 virtual const char* name() const { | |
64 return "garbage-first collection to satisfy allocation"; | |
65 } | |
66 HeapWord* result() { return _res; } | |
67 }; | |
68 | |
69 class VM_G1IncCollectionPause: public VM_GC_Operation { | |
70 public: | |
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3fc996d4edd2
6902303: G1: ScavengeALot should cause an incremental, rather than a full, collection
ysr
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71 VM_G1IncCollectionPause(int gc_count_before, |
3fc996d4edd2
6902303: G1: ScavengeALot should cause an incremental, rather than a full, collection
ysr
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72 GCCause::Cause gc_cause = GCCause::_g1_inc_collection_pause) : |
3fc996d4edd2
6902303: G1: ScavengeALot should cause an incremental, rather than a full, collection
ysr
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844
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changeset
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73 VM_GC_Operation(gc_count_before) { _gc_cause = gc_cause; } |
342 | 74 virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; } |
75 virtual void doit(); | |
76 virtual const char* name() const { | |
77 return "garbage-first incremental collection pause"; | |
78 } | |
79 }; | |
80 | |
81 // Concurrent GC stop-the-world operations such as initial and final mark; | |
82 // consider sharing these with CMS's counterparts. | |
83 class VM_CGC_Operation: public VM_Operation { | |
84 VoidClosure* _cl; | |
85 const char* _printGCMessage; | |
86 public: | |
87 VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg) : | |
88 _cl(cl), | |
89 _printGCMessage(printGCMsg) | |
90 {} | |
91 | |
92 ~VM_CGC_Operation() {} | |
93 | |
94 virtual VMOp_Type type() const { return VMOp_CGC_Operation; } | |
95 virtual void doit(); | |
96 virtual bool doit_prologue(); | |
97 virtual void doit_epilogue(); | |
98 virtual const char* name() const { | |
99 return "concurrent gc"; | |
100 } | |
101 }; |