Mercurial > hg > graal-jvmci-8
comparison src/share/vm/services/nmtCommon.hpp @ 20360:833b0f92429a
8046598: Scalable Native memory tracking development
Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill
author | zgu |
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date | Wed, 27 Aug 2014 08:19:12 -0400 |
parents | |
children | c6211b707068 |
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20359:4d3a43351904 | 20360:833b0f92429a |
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1 /* | |
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. | |
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 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #ifndef SHARE_VM_SERVICES_NMT_COMMON_HPP | |
26 #define SHARE_VM_SERVICES_NMT_COMMON_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "utilities/globalDefinitions.hpp" | |
30 | |
31 #define CALC_OBJ_SIZE_IN_TYPE(obj, type) (align_size_up_(sizeof(obj), sizeof(type))/sizeof(type)) | |
32 | |
33 // Data type for memory counters | |
34 #ifdef _LP64 | |
35 typedef jlong MemoryCounterType; | |
36 #else | |
37 typedef jint MemoryCounterType; | |
38 #endif | |
39 | |
40 // Native memory tracking level | |
41 enum NMT_TrackingLevel { | |
42 NMT_unknown = 0xFF, | |
43 NMT_off = 0x00, | |
44 NMT_minimal = 0x01, | |
45 NMT_summary = 0x02, | |
46 NMT_detail = 0x03 | |
47 }; | |
48 | |
49 // Number of stack frames to capture. This is a | |
50 // build time decision. | |
51 const int NMT_TrackingStackDepth = 4; | |
52 | |
53 class NativeCallStack; | |
54 extern NativeCallStack emptyStack; | |
55 | |
56 // A few common utilities for native memory tracking | |
57 class NMTUtil : AllStatic { | |
58 public: | |
59 // Map memory type to index | |
60 static inline int flag_to_index(MEMFLAGS flag) { | |
61 return (flag & 0xff); | |
62 } | |
63 | |
64 // Map memory type to human readable name | |
65 static const char* flag_to_name(MEMFLAGS flag) { | |
66 return _memory_type_names[flag_to_index(flag)]; | |
67 } | |
68 | |
69 // Map an index to memory type | |
70 static MEMFLAGS index_to_flag(int index) { | |
71 return (MEMFLAGS)index; | |
72 } | |
73 | |
74 // Memory size scale | |
75 static const char* scale_name(size_t scale); | |
76 static size_t scale_from_name(const char* scale); | |
77 | |
78 // Translate memory size in specified scale | |
79 static size_t amount_in_scale(size_t amount, size_t scale) { | |
80 return (amount + scale / 2) / scale; | |
81 } | |
82 private: | |
83 static const char* _memory_type_names[mt_number_of_types]; | |
84 }; | |
85 | |
86 | |
87 #endif |