| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "memory/metaspaceCounters.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "runtime/globals.hpp" |
| #include "runtime/perfData.hpp" |
| #include "utilities/exceptions.hpp" |
| |
| class MetaspacePerfCounters: public CHeapObj<mtInternal> { |
| friend class VMStructs; |
| PerfVariable* _capacity; |
| PerfVariable* _used; |
| PerfVariable* _max_capacity; |
| |
| PerfVariable* create_variable(const char *ns, const char *name, size_t value, TRAPS) { |
| const char *path = PerfDataManager::counter_name(ns, name); |
| return PerfDataManager::create_variable(SUN_GC, path, PerfData::U_Bytes, value, THREAD); |
| } |
| |
| void create_constant(const char *ns, const char *name, size_t value, TRAPS) { |
| const char *path = PerfDataManager::counter_name(ns, name); |
| PerfDataManager::create_constant(SUN_GC, path, PerfData::U_Bytes, value, THREAD); |
| } |
| |
| public: |
| MetaspacePerfCounters(const char* ns, size_t min_capacity, size_t curr_capacity, size_t max_capacity, size_t used) { |
| EXCEPTION_MARK; |
| ResourceMark rm; |
| |
| create_constant(ns, "minCapacity", min_capacity, THREAD); |
| _capacity = create_variable(ns, "capacity", curr_capacity, THREAD); |
| _max_capacity = create_variable(ns, "maxCapacity", max_capacity, THREAD); |
| _used = create_variable(ns, "used", used, THREAD); |
| } |
| |
| void update(size_t capacity, size_t max_capacity, size_t used) { |
| _capacity->set_value(capacity); |
| _max_capacity->set_value(max_capacity); |
| _used->set_value(used); |
| } |
| }; |
| |
| MetaspacePerfCounters* MetaspaceCounters::_perf_counters = NULL; |
| |
| size_t MetaspaceCounters::used() { |
| return MetaspaceAux::used_bytes(); |
| } |
| |
| size_t MetaspaceCounters::capacity() { |
| return MetaspaceAux::committed_bytes(); |
| } |
| |
| size_t MetaspaceCounters::max_capacity() { |
| return MetaspaceAux::reserved_bytes(); |
| } |
| |
| void MetaspaceCounters::initialize_performance_counters() { |
| if (UsePerfData) { |
| assert(_perf_counters == NULL, "Should only be initialized once"); |
| |
| size_t min_capacity = 0; |
| _perf_counters = new MetaspacePerfCounters("metaspace", min_capacity, |
| capacity(), max_capacity(), used()); |
| } |
| } |
| |
| void MetaspaceCounters::update_performance_counters() { |
| if (UsePerfData) { |
| assert(_perf_counters != NULL, "Should be initialized"); |
| |
| _perf_counters->update(capacity(), max_capacity(), used()); |
| } |
| } |
| |
| MetaspacePerfCounters* CompressedClassSpaceCounters::_perf_counters = NULL; |
| |
| size_t CompressedClassSpaceCounters::used() { |
| return MetaspaceAux::used_bytes(Metaspace::ClassType); |
| } |
| |
| size_t CompressedClassSpaceCounters::capacity() { |
| return MetaspaceAux::committed_bytes(Metaspace::ClassType); |
| } |
| |
| size_t CompressedClassSpaceCounters::max_capacity() { |
| return MetaspaceAux::reserved_bytes(Metaspace::ClassType); |
| } |
| |
| void CompressedClassSpaceCounters::update_performance_counters() { |
| if (UsePerfData && UseCompressedClassPointers) { |
| assert(_perf_counters != NULL, "Should be initialized"); |
| |
| _perf_counters->update(capacity(), max_capacity(), used()); |
| } |
| } |
| |
| void CompressedClassSpaceCounters::initialize_performance_counters() { |
| if (UsePerfData) { |
| assert(_perf_counters == NULL, "Should only be initialized once"); |
| const char* ns = "compressedclassspace"; |
| |
| if (UseCompressedClassPointers) { |
| size_t min_capacity = 0; |
| _perf_counters = new MetaspacePerfCounters(ns, min_capacity, capacity(), |
| max_capacity(), used()); |
| } else { |
| _perf_counters = new MetaspacePerfCounters(ns, 0, 0, 0, 0); |
| } |
| } |
| } |