coleenp@4037: /*
katleman@4376:  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
coleenp@4037:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
coleenp@4037:  *
coleenp@4037:  * This code is free software; you can redistribute it and/or modify it
coleenp@4037:  * under the terms of the GNU General Public License version 2 only, as
coleenp@4037:  * published by the Free Software Foundation.
coleenp@4037:  *
coleenp@4037:  * This code is distributed in the hope that it will be useful, but WITHOUT
coleenp@4037:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
coleenp@4037:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
coleenp@4037:  * version 2 for more details (a copy is included in the LICENSE file that
coleenp@4037:  * accompanied this code).
coleenp@4037:  *
coleenp@4037:  * You should have received a copy of the GNU General Public License version
coleenp@4037:  * 2 along with this work; if not, write to the Free Software Foundation,
coleenp@4037:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
coleenp@4037:  *
coleenp@4037:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
coleenp@4037:  * or visit www.oracle.com if you need additional information or have any
coleenp@4037:  * questions.
coleenp@4037:  *
coleenp@4037:  */
coleenp@4037: 
coleenp@4037: #include "precompiled.hpp"
coleenp@4037: #include "memory/metaspaceCounters.hpp"
coleenp@4037: #include "memory/resourceArea.hpp"
coleenp@4037: 
coleenp@4037: #define METASPACE_NAME "perm"
coleenp@4037: 
coleenp@4037: MetaspaceCounters* MetaspaceCounters::_metaspace_counters = NULL;
coleenp@4037: 
coleenp@4037: MetaspaceCounters::MetaspaceCounters() {
coleenp@4037:   if (UsePerfData) {
coleenp@4037:     size_t min_capacity = MetaspaceAux::min_chunk_size();
coleenp@4037:     size_t max_capacity = MetaspaceAux::reserved_in_bytes();
coleenp@4037:     size_t curr_capacity = MetaspaceAux::capacity_in_bytes();
jmasa@4046:     size_t used = MetaspaceAux::used_in_bytes();
coleenp@4037: 
coleenp@4037:     initialize(min_capacity, max_capacity, curr_capacity, used);
coleenp@4037:   }
coleenp@4037: }
coleenp@4037: 
coleenp@4037: void MetaspaceCounters::initialize(size_t min_capacity,
coleenp@4037:                                    size_t max_capacity,
coleenp@4037:                                    size_t curr_capacity,
coleenp@4037:                                    size_t used) {
coleenp@4037: 
coleenp@4037:   if (UsePerfData) {
coleenp@4037:     EXCEPTION_MARK;
coleenp@4037:     ResourceMark rm;
coleenp@4037: 
coleenp@4037:     // Create a name that will be recognized by jstat tools as
coleenp@4037:     // the perm gen.  Change this to a Metaspace name when the
coleenp@4037:     // tools are fixed.
coleenp@4037:     // name to recognize "sun.gc.generation.2.*"
coleenp@4037: 
coleenp@4037:     const char* name = METASPACE_NAME;
coleenp@4037:     const int ordinal = 2;
coleenp@4037:     const int spaces = 1;
coleenp@4037: 
coleenp@4037:     const char* cns = PerfDataManager::name_space("generation", ordinal);
coleenp@4037: 
coleenp@4037:     _name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtClass);
coleenp@4037:     strcpy(_name_space, cns);
coleenp@4037: 
coleenp@4037:     const char* cname = PerfDataManager::counter_name(_name_space, "name");
coleenp@4037:     PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK);
coleenp@4037: 
coleenp@4037:     // End of perm gen like name creation
coleenp@4037: 
coleenp@4037:     cname = PerfDataManager::counter_name(_name_space, "spaces");
coleenp@4037:     PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_None,
coleenp@4037:                                      spaces, CHECK);
coleenp@4037: 
coleenp@4037:     cname = PerfDataManager::counter_name(_name_space, "minCapacity");
coleenp@4037:     PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
coleenp@4037:                                      min_capacity, CHECK);
coleenp@4037: 
coleenp@4037:     cname = PerfDataManager::counter_name(_name_space, "maxCapacity");
coleenp@4037:     PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
coleenp@4037:                                      max_capacity, CHECK);
coleenp@4037: 
coleenp@4037:     cname = PerfDataManager::counter_name(_name_space, "capacity");
coleenp@4037:     _current_size =
coleenp@4037:       PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes,
coleenp@4037:                                        curr_capacity, CHECK);
coleenp@4037: 
coleenp@4037:     // SpaceCounter like counters
coleenp@4037:     // name to recognize "sun.gc.generation.2.space.0.*"
coleenp@4037:     {
coleenp@4037:       const int space_ordinal = 0;
coleenp@4037:       const char* cns = PerfDataManager::name_space(_name_space, "space",
coleenp@4037:                                                     space_ordinal);
coleenp@4037: 
coleenp@4037:       char* space_name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtClass);
coleenp@4037:       strcpy(space_name_space, cns);
coleenp@4037: 
coleenp@4037:       const char* cname = PerfDataManager::counter_name(space_name_space, "name");
coleenp@4037:       PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK);
coleenp@4037: 
coleenp@4037:       cname = PerfDataManager::counter_name(space_name_space, "maxCapacity");
coleenp@4037:       _max_capacity = PerfDataManager::create_variable(SUN_GC, cname,
coleenp@4037:                                                        PerfData::U_Bytes,
coleenp@4037:                                                        (jlong)max_capacity, CHECK);
coleenp@4037: 
coleenp@4037:       cname = PerfDataManager::counter_name(space_name_space, "capacity");
coleenp@4037:       _capacity = PerfDataManager::create_variable(SUN_GC, cname,
coleenp@4037:                                                    PerfData::U_Bytes,
coleenp@4037:                                                    curr_capacity, CHECK);
coleenp@4037: 
coleenp@4037:       cname = PerfDataManager::counter_name(space_name_space, "used");
coleenp@4037:       _used = PerfDataManager::create_variable(SUN_GC,
coleenp@4037:                                                cname,
coleenp@4037:                                                PerfData::U_Bytes,
coleenp@4037:                                                used,
coleenp@4037:                                                CHECK);
coleenp@4037: 
coleenp@4037:     cname = PerfDataManager::counter_name(space_name_space, "initCapacity");
coleenp@4037:     PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
coleenp@4037:                                      min_capacity, CHECK);
coleenp@4037:     }
coleenp@4037:   }
coleenp@4037: }
coleenp@4037: 
coleenp@4037: void MetaspaceCounters::update_capacity() {
coleenp@4037:   assert(UsePerfData, "Should not be called unless being used");
coleenp@4037:   size_t capacity_in_bytes = MetaspaceAux::capacity_in_bytes();
coleenp@4037:   _capacity->set_value(capacity_in_bytes);
coleenp@4037: }
coleenp@4037: 
coleenp@4037: void MetaspaceCounters::update_used() {
coleenp@4037:   assert(UsePerfData, "Should not be called unless being used");
jmasa@4046:   size_t used_in_bytes = MetaspaceAux::used_in_bytes();
coleenp@4037:   _used->set_value(used_in_bytes);
coleenp@4037: }
coleenp@4037: 
coleenp@4037: void MetaspaceCounters::update_max_capacity() {
coleenp@4037:   assert(UsePerfData, "Should not be called unless being used");
coleenp@4037:   size_t reserved_in_bytes = MetaspaceAux::reserved_in_bytes();
coleenp@4037:   _max_capacity->set_value(reserved_in_bytes);
coleenp@4037: }
coleenp@4037: 
coleenp@4037: void MetaspaceCounters::update_all() {
coleenp@4037:   if (UsePerfData) {
coleenp@4037:     update_used();
coleenp@4037:     update_capacity();
coleenp@4037:     update_max_capacity();
coleenp@4037:     _current_size->set_value(MetaspaceAux::reserved_in_bytes());
coleenp@4037:   }
coleenp@4037: }
coleenp@4037: 
coleenp@4037: void MetaspaceCounters::initialize_performance_counters() {
coleenp@4037:   if (UsePerfData) {
coleenp@4037:     _metaspace_counters = new MetaspaceCounters();
coleenp@4037:   }
coleenp@4037: }
coleenp@4037: 
coleenp@4037: void MetaspaceCounters::update_performance_counters() {
coleenp@4037:   if (UsePerfData) {
coleenp@4037:     _metaspace_counters->update_all();
coleenp@4037:   }
coleenp@4037: }
coleenp@4037: