23 */ |
23 */ |
24 |
24 |
25 #include "precompiled.hpp" |
25 #include "precompiled.hpp" |
26 #include "memory/metaspaceCounters.hpp" |
26 #include "memory/metaspaceCounters.hpp" |
27 #include "memory/resourceArea.hpp" |
27 #include "memory/resourceArea.hpp" |
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28 #include "runtime/globals.hpp" |
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29 #include "runtime/perfData.hpp" |
28 #include "utilities/exceptions.hpp" |
30 #include "utilities/exceptions.hpp" |
29 |
31 |
30 MetaspaceCounters* MetaspaceCounters::_metaspace_counters = NULL; |
32 class MetaspacePerfCounters: public CHeapObj<mtInternal> { |
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33 friend class VMStructs; |
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34 PerfVariable* _capacity; |
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35 PerfVariable* _used; |
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36 PerfVariable* _max_capacity; |
31 |
37 |
32 size_t MetaspaceCounters::calc_total_capacity() { |
38 PerfVariable* create_variable(const char *ns, const char *name, size_t value, TRAPS) { |
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39 const char *path = PerfDataManager::counter_name(ns, name); |
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40 return PerfDataManager::create_variable(SUN_GC, path, PerfData::U_Bytes, value, THREAD); |
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41 } |
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42 |
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43 void create_constant(const char *ns, const char *name, size_t value, TRAPS) { |
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44 const char *path = PerfDataManager::counter_name(ns, name); |
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45 PerfDataManager::create_constant(SUN_GC, path, PerfData::U_Bytes, value, THREAD); |
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46 } |
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47 |
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48 public: |
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49 MetaspacePerfCounters(const char* ns, size_t min_capacity, size_t curr_capacity, size_t max_capacity, size_t used) { |
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50 EXCEPTION_MARK; |
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51 ResourceMark rm; |
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52 |
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53 create_constant(ns, "minCapacity", min_capacity, THREAD); |
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54 _capacity = create_variable(ns, "capacity", curr_capacity, THREAD); |
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55 _max_capacity = create_variable(ns, "maxCapacity", max_capacity, THREAD); |
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56 _used = create_variable(ns, "used", used, THREAD); |
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57 } |
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58 |
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59 void update(size_t capacity, size_t max_capacity, size_t used) { |
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60 _capacity->set_value(capacity); |
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61 _max_capacity->set_value(max_capacity); |
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62 _used->set_value(used); |
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63 } |
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64 }; |
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65 |
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66 MetaspacePerfCounters* MetaspaceCounters::_perf_counters = NULL; |
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67 |
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68 size_t MetaspaceCounters::calculate_capacity() { |
33 // The total capacity is the sum of |
69 // The total capacity is the sum of |
34 // 1) capacity of Metachunks in use by all Metaspaces |
70 // 1) capacity of Metachunks in use by all Metaspaces |
35 // 2) unused space at the end of each Metachunk |
71 // 2) unused space at the end of each Metachunk |
36 // 3) space in the freelist |
72 // 3) space in the freelist |
37 size_t total_capacity = MetaspaceAux::allocated_capacity_bytes() |
73 size_t total_capacity = MetaspaceAux::allocated_capacity_bytes() |
38 + MetaspaceAux::free_bytes() + MetaspaceAux::free_chunks_total_in_bytes(); |
74 + MetaspaceAux::free_bytes() + MetaspaceAux::free_chunks_total_in_bytes(); |
39 return total_capacity; |
75 return total_capacity; |
40 } |
76 } |
41 |
77 |
42 MetaspaceCounters::MetaspaceCounters() : |
78 void MetaspaceCounters::initialize_performance_counters() { |
43 _capacity(NULL), |
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44 _used(NULL), |
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45 _max_capacity(NULL) { |
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46 if (UsePerfData) { |
79 if (UsePerfData) { |
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80 assert(_perf_counters == NULL, "Should only be initialized once"); |
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81 |
47 size_t min_capacity = MetaspaceAux::min_chunk_size(); |
82 size_t min_capacity = MetaspaceAux::min_chunk_size(); |
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83 size_t capacity = calculate_capacity(); |
48 size_t max_capacity = MetaspaceAux::reserved_in_bytes(); |
84 size_t max_capacity = MetaspaceAux::reserved_in_bytes(); |
49 size_t curr_capacity = calc_total_capacity(); |
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50 size_t used = MetaspaceAux::allocated_used_bytes(); |
85 size_t used = MetaspaceAux::allocated_used_bytes(); |
51 |
86 |
52 initialize(min_capacity, max_capacity, curr_capacity, used); |
87 _perf_counters = new MetaspacePerfCounters("metaspace", min_capacity, capacity, max_capacity, used); |
53 } |
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54 } |
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55 |
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56 static PerfVariable* create_ms_variable(const char *ns, |
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57 const char *name, |
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58 size_t value, |
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59 TRAPS) { |
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60 const char *path = PerfDataManager::counter_name(ns, name); |
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61 PerfVariable *result = |
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62 PerfDataManager::create_variable(SUN_GC, path, PerfData::U_Bytes, value, |
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63 CHECK_NULL); |
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64 return result; |
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65 } |
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66 |
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67 static void create_ms_constant(const char *ns, |
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68 const char *name, |
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69 size_t value, |
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70 TRAPS) { |
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71 const char *path = PerfDataManager::counter_name(ns, name); |
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72 PerfDataManager::create_constant(SUN_GC, path, PerfData::U_Bytes, value, CHECK); |
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73 } |
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74 |
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75 void MetaspaceCounters::initialize(size_t min_capacity, |
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76 size_t max_capacity, |
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77 size_t curr_capacity, |
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78 size_t used) { |
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79 |
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80 if (UsePerfData) { |
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81 EXCEPTION_MARK; |
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82 ResourceMark rm; |
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83 |
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84 const char *ms = "metaspace"; |
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85 |
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86 create_ms_constant(ms, "minCapacity", min_capacity, CHECK); |
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87 _max_capacity = create_ms_variable(ms, "maxCapacity", max_capacity, CHECK); |
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88 _capacity = create_ms_variable(ms, "capacity", curr_capacity, CHECK); |
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89 _used = create_ms_variable(ms, "used", used, CHECK); |
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90 } |
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91 } |
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92 |
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93 void MetaspaceCounters::update_capacity() { |
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94 assert(UsePerfData, "Should not be called unless being used"); |
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95 size_t total_capacity = calc_total_capacity(); |
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96 _capacity->set_value(total_capacity); |
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97 } |
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98 |
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99 void MetaspaceCounters::update_used() { |
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100 assert(UsePerfData, "Should not be called unless being used"); |
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101 size_t used_in_bytes = MetaspaceAux::allocated_used_bytes(); |
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102 _used->set_value(used_in_bytes); |
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103 } |
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104 |
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105 void MetaspaceCounters::update_max_capacity() { |
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106 assert(UsePerfData, "Should not be called unless being used"); |
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107 assert(_max_capacity != NULL, "Should be initialized"); |
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108 size_t reserved_in_bytes = MetaspaceAux::reserved_in_bytes(); |
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109 _max_capacity->set_value(reserved_in_bytes); |
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110 } |
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111 |
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112 void MetaspaceCounters::update_all() { |
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113 if (UsePerfData) { |
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114 update_used(); |
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115 update_capacity(); |
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116 update_max_capacity(); |
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117 } |
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118 } |
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119 |
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120 void MetaspaceCounters::initialize_performance_counters() { |
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121 if (UsePerfData) { |
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122 assert(_metaspace_counters == NULL, "Should only be initialized once"); |
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123 _metaspace_counters = new MetaspaceCounters(); |
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124 } |
88 } |
125 } |
89 } |
126 |
90 |
127 void MetaspaceCounters::update_performance_counters() { |
91 void MetaspaceCounters::update_performance_counters() { |
128 if (UsePerfData) { |
92 if (UsePerfData) { |
129 assert(_metaspace_counters != NULL, "Should be initialized"); |
93 assert(_perf_counters != NULL, "Should be initialized"); |
130 _metaspace_counters->update_all(); |
94 |
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95 size_t capacity = calculate_capacity(); |
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96 size_t max_capacity = MetaspaceAux::reserved_in_bytes(); |
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97 size_t used = MetaspaceAux::allocated_used_bytes(); |
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98 |
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99 _perf_counters->update(capacity, max_capacity, used); |
131 } |
100 } |
132 } |
101 } |
133 |
102 |
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103 MetaspacePerfCounters* CompressedClassSpaceCounters::_perf_counters = NULL; |
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104 |
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105 size_t CompressedClassSpaceCounters::calculate_capacity() { |
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106 return MetaspaceAux::allocated_capacity_bytes(_class_type) + |
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107 MetaspaceAux::free_bytes(_class_type) + |
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108 MetaspaceAux::free_chunks_total_in_bytes(_class_type); |
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109 } |
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110 |
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111 void CompressedClassSpaceCounters::update_performance_counters() { |
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112 if (UsePerfData && UseCompressedKlassPointers) { |
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113 assert(_perf_counters != NULL, "Should be initialized"); |
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114 |
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115 size_t capacity = calculate_capacity(); |
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116 size_t max_capacity = MetaspaceAux::reserved_in_bytes(_class_type); |
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117 size_t used = MetaspaceAux::allocated_used_bytes(_class_type); |
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118 |
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119 _perf_counters->update(capacity, max_capacity, used); |
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120 } |
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121 } |
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122 |
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123 void CompressedClassSpaceCounters::initialize_performance_counters() { |
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124 if (UsePerfData) { |
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125 assert(_perf_counters == NULL, "Should only be initialized once"); |
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126 const char* ns = "compressedclassspace"; |
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127 |
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128 if (UseCompressedKlassPointers) { |
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129 size_t min_capacity = MetaspaceAux::min_chunk_size(); |
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130 size_t capacity = calculate_capacity(); |
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131 size_t max_capacity = MetaspaceAux::reserved_in_bytes(_class_type); |
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132 size_t used = MetaspaceAux::allocated_used_bytes(_class_type); |
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133 |
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134 _perf_counters = new MetaspacePerfCounters(ns, min_capacity, capacity, max_capacity, used); |
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135 } else { |
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136 _perf_counters = new MetaspacePerfCounters(ns, 0, 0, 0, 0); |
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137 } |
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138 } |
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139 } |