1 /* 2 * Copyright (c) 2002, 2019, 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/allocation.inline.hpp" 28 #include "memory/metaspace.hpp" 29 #include "memory/resourceArea.hpp" 30 31 CSpaceCounters::CSpaceCounters(const char* name, int ordinal, size_t max_size, 32 ContiguousSpace* s, GenerationCounters* gc) : 33 _space(s) { 34 35 if (UsePerfData) { 36 EXCEPTION_MARK; 37 ResourceMark rm; 38 39 const char* cns = PerfDataManager::name_space(gc->name_space(), "space", 40 ordinal); 41 42 _name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtGC); 43 strcpy(_name_space, cns); 44 45 const char* cname = PerfDataManager::counter_name(_name_space, "name"); 46 PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK); 47 48 cname = PerfDataManager::counter_name(_name_space, "maxCapacity"); 49 _max_capacity = PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes, 50 (jlong)max_size, CHECK); 51 52 cname = PerfDataManager::counter_name(_name_space, "capacity"); 53 _capacity = PerfDataManager::create_variable(SUN_GC, cname, 54 PerfData::U_Bytes, 55 _space->capacity(), CHECK); 56 57 cname = PerfDataManager::counter_name(_name_space, "used"); 58 _used = PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes, 59 new ContiguousSpaceUsedHelper(_space), 60 CHECK); 61 62 cname = PerfDataManager::counter_name(_name_space, "initCapacity"); 63 PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes, 64 _space->capacity(), CHECK); 65 } 66 } 67 68 CSpaceCounters::~CSpaceCounters() { 69 FREE_C_HEAP_ARRAY(char, _name_space); 70 } 71 72 void CSpaceCounters::update_capacity() { 73 _capacity->set_value(_space->capacity()); 74 } 75 76 void CSpaceCounters::update_used() { 77 _used->set_value(_space->used()); 78 } 79 80 void CSpaceCounters::update_all() { 81 update_used(); 82 update_capacity(); 83 } 84 85 jlong ContiguousSpaceUsedHelper::take_sample(){ 86 return _space->used(); 87 }