1/* 2 * Copyright (c) 2002, 2015, 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 "gc/serial/cSpaceCounters.hpp" 27#include "memory/metaspace.hpp" 28#include "memory/resourceArea.hpp" 29 30CSpaceCounters::CSpaceCounters(const char* name, int ordinal, size_t max_size, 31 ContiguousSpace* s, GenerationCounters* gc) : 32 _space(s) { 33 34 if (UsePerfData) { 35 EXCEPTION_MARK; 36 ResourceMark rm; 37 38 const char* cns = PerfDataManager::name_space(gc->name_space(), "space", 39 ordinal); 40 41 _name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtGC); 42 strcpy(_name_space, cns); 43 44 const char* cname = PerfDataManager::counter_name(_name_space, "name"); 45 PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK); 46 47 cname = PerfDataManager::counter_name(_name_space, "maxCapacity"); 48 _max_capacity = PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes, 49 (jlong)max_size, CHECK); 50 51 cname = PerfDataManager::counter_name(_name_space, "capacity"); 52 _capacity = PerfDataManager::create_variable(SUN_GC, cname, 53 PerfData::U_Bytes, 54 _space->capacity(), CHECK); 55 56 cname = PerfDataManager::counter_name(_name_space, "used"); 57 _used = PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes, 58 new ContiguousSpaceUsedHelper(_space), 59 CHECK); 60 61 cname = PerfDataManager::counter_name(_name_space, "initCapacity"); 62 PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes, 63 _space->capacity(), CHECK); 64 } 65} 66 67void CSpaceCounters::update_capacity() { 68 _capacity->set_value(_space->capacity()); 69} 70 71void CSpaceCounters::update_used() { 72 _used->set_value(_space->used()); 73} 74 75void CSpaceCounters::update_all() { 76 update_used(); 77 update_capacity(); 78} 79 80jlong ContiguousSpaceUsedHelper::take_sample(){ 81 return _space->used(); 82} 83