1 /* 2 * Copyright (c) 2012, 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 #include "precompiled.hpp" 26 #include "memory/metaspaceCounters.hpp" 27 #include "memory/resourceArea.hpp" 28 29 #define METASPACE_NAME "perm" 30 31 MetaspaceCounters* MetaspaceCounters::_metaspace_counters = NULL; 32 33 MetaspaceCounters::MetaspaceCounters() { 34 if (UsePerfData) { 35 size_t min_capacity = MetaspaceAux::min_chunk_size(); 36 size_t max_capacity = MetaspaceAux::reserved_in_bytes(); 37 size_t curr_capacity = MetaspaceAux::capacity_in_bytes(); 38 size_t used = MetaspaceAux::used_in_bytes(); 39 40 initialize(min_capacity, max_capacity, curr_capacity, used); 41 } 42 } 43 44 void MetaspaceCounters::initialize(size_t min_capacity, 45 size_t max_capacity, 46 size_t curr_capacity, 47 size_t used) { 48 49 if (UsePerfData) { 50 EXCEPTION_MARK; 51 ResourceMark rm; 52 53 // Create a name that will be recognized by jstat tools as 54 // the perm gen. Change this to a Metaspace name when the 55 // tools are fixed. 56 // name to recognize "sun.gc.generation.2.*" 57 58 const char* name = METASPACE_NAME; 59 const int ordinal = 2; 60 const int spaces = 1; 61 62 const char* cns = PerfDataManager::name_space("generation", ordinal); 63 64 _name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtClass); 65 strcpy(_name_space, cns); 66 67 const char* cname = PerfDataManager::counter_name(_name_space, "name"); 68 PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK); 69 70 // End of perm gen like name creation 71 72 cname = PerfDataManager::counter_name(_name_space, "spaces"); 73 PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_None, 74 spaces, CHECK); 75 76 cname = PerfDataManager::counter_name(_name_space, "minCapacity"); 77 PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes, 78 min_capacity, CHECK); 79 80 cname = PerfDataManager::counter_name(_name_space, "maxCapacity"); 81 PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes, 82 max_capacity, CHECK); 83 84 cname = PerfDataManager::counter_name(_name_space, "capacity"); 85 _current_size = 86 PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes, 87 curr_capacity, CHECK); 88 89 // SpaceCounter like counters 90 // name to recognize "sun.gc.generation.2.space.0.*" 91 { 92 const int space_ordinal = 0; 93 const char* cns = PerfDataManager::name_space(_name_space, "space", 94 space_ordinal); 95 96 char* space_name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtClass); 97 strcpy(space_name_space, cns); 98 99 const char* cname = PerfDataManager::counter_name(space_name_space, "name"); 100 PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK); 101 102 cname = PerfDataManager::counter_name(space_name_space, "maxCapacity"); 103 _max_capacity = PerfDataManager::create_variable(SUN_GC, cname, 104 PerfData::U_Bytes, 105 (jlong)max_capacity, CHECK); 106 107 cname = PerfDataManager::counter_name(space_name_space, "capacity"); 108 _capacity = PerfDataManager::create_variable(SUN_GC, cname, 109 PerfData::U_Bytes, 110 curr_capacity, CHECK); 111 112 cname = PerfDataManager::counter_name(space_name_space, "used"); 113 _used = PerfDataManager::create_variable(SUN_GC, 114 cname, 115 PerfData::U_Bytes, 116 used, 117 CHECK); 118 119 cname = PerfDataManager::counter_name(space_name_space, "initCapacity"); 120 PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes, 121 min_capacity, CHECK); 122 } 123 } 124 } 125 126 void MetaspaceCounters::update_capacity() { 127 assert(UsePerfData, "Should not be called unless being used"); 128 size_t capacity_in_bytes = MetaspaceAux::capacity_in_bytes(); 129 _capacity->set_value(capacity_in_bytes); 130 } 131 132 void MetaspaceCounters::update_used() { 133 assert(UsePerfData, "Should not be called unless being used"); 134 size_t used_in_bytes = MetaspaceAux::used_in_bytes(); 135 _used->set_value(used_in_bytes); 136 } 137 138 void MetaspaceCounters::update_max_capacity() { 139 assert(UsePerfData, "Should not be called unless being used"); 140 size_t reserved_in_bytes = MetaspaceAux::reserved_in_bytes(); 141 _max_capacity->set_value(reserved_in_bytes); 142 } 143 144 void MetaspaceCounters::update_all() { 145 if (UsePerfData) { 146 update_used(); 147 update_capacity(); 148 update_max_capacity(); 149 _current_size->set_value(MetaspaceAux::reserved_in_bytes()); 150 } 151 } 152 153 void MetaspaceCounters::initialize_performance_counters() { 154 if (UsePerfData) { 155 _metaspace_counters = new MetaspaceCounters(); 156 } 157 } 158 159 void MetaspaceCounters::update_performance_counters() { 160 if (UsePerfData) { 161 _metaspace_counters->update_all(); 162 } 163 } 164