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annotate src/share/vm/gc_implementation/parallelScavenge/asPSOldGen.hpp @ 17727:cfd4aac53239
8030177: G1: Enable TLAB resizing
Reviewed-by: tschatzl, stefank, jmasa
author | brutisso |
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date | Mon, 27 Jan 2014 13:14:53 +0100 |
parents | 55fb97c4c58d |
children | 4ca6dc0799b6 |
rev | line source |
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0 | 1 /* |
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8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
mikael
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2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSOLDGEN_HPP |
26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSOLDGEN_HPP | |
27 | |
28 #include "gc_implementation/parallelScavenge/objectStartArray.hpp" | |
29 #include "gc_implementation/parallelScavenge/psOldGen.hpp" | |
30 #include "gc_implementation/parallelScavenge/psVirtualspace.hpp" | |
31 #include "gc_implementation/shared/generationCounters.hpp" | |
32 #include "gc_implementation/shared/mutableSpace.hpp" | |
33 #include "gc_implementation/shared/spaceCounters.hpp" | |
34 | |
0 | 35 class ASPSOldGen : public PSOldGen { |
36 friend class VMStructs; | |
37 size_t _gen_size_limit; // Largest size the generation's reserved size | |
38 // can grow. | |
39 public: | |
40 ASPSOldGen(size_t initial_byte_size, | |
41 size_t minimum_byte_size, | |
42 size_t byte_size_limit, | |
43 const char* gen_name, int level); | |
44 ASPSOldGen(PSVirtualSpace* vs, | |
45 size_t initial_byte_size, | |
46 size_t minimum_byte_size, | |
47 size_t byte_size_limit, | |
48 const char* gen_name, int level); | |
49 size_t gen_size_limit() { return _gen_size_limit; } | |
50 size_t max_gen_size() { return _reserved.byte_size(); } | |
51 void set_gen_size_limit(size_t v) { _gen_size_limit = v; } | |
52 | |
11038 | 53 virtual void initialize_work(const char* perf_data_name, int level); |
54 | |
0 | 55 // After a shrink or expand reset the generation |
56 void reset_after_change(); | |
57 | |
58 // Return number of bytes that the virtual space in the generation is willing | |
59 // to expand or contract. The results from these methods should feed into the | |
60 // decisions about adjusting the virtual space. | |
61 size_t available_for_expansion(); | |
62 size_t available_for_contraction(); | |
63 | |
64 // Accessors | |
65 void set_reserved(MemRegion v) { _reserved = v; } | |
66 | |
67 // Debugging support | |
68 virtual const char* short_name() const { return "ASPSOldGen"; } | |
69 }; | |
1972 | 70 |
71 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_ASPSOLDGEN_HPP |