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/cms/gSpaceCounters.hpp"
  27 #include "gc/shared/generation.hpp"
  28 #include "memory/resourceArea.hpp"
  29 #include "utilities/macros.hpp"
  30 
  31 GSpaceCounters::GSpaceCounters(const char* name, int ordinal, size_t max_size,
  32                                Generation* g, GenerationCounters* gc,
  33                                bool sampled) :
  34    _gen(g) {
  35 
  36   if (UsePerfData) {
  37     EXCEPTION_MARK;
  38     ResourceMark rm;
  39 
  40     const char* cns = PerfDataManager::name_space(gc->name_space(), "space",
  41                                                   ordinal);
  42 
  43     _name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtGC);
  44     strcpy(_name_space, cns);
  45 
  46     const char* cname = PerfDataManager::counter_name(_name_space, "name");
  47     PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK);
  48 
  49     cname = PerfDataManager::counter_name(_name_space, "maxCapacity");
  50     PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
  51                                      (jlong)max_size, CHECK);
  52 
  53     cname = PerfDataManager::counter_name(_name_space, "capacity");
  54     _capacity = PerfDataManager::create_variable(SUN_GC, cname,
  55                                                  PerfData::U_Bytes,
  56                                                  _gen->capacity(), CHECK);
  57 
  58     cname = PerfDataManager::counter_name(_name_space, "used");
  59     if (sampled) {
  60       _used = PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes,
  61                                                new GenerationUsedHelper(_gen),
  62                                                CHECK);
  63     }
  64     else {
  65       _used = PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes,
  66                                                (jlong)0, CHECK);
  67     }
  68 
  69     cname = PerfDataManager::counter_name(_name_space, "initCapacity");
  70     PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
  71                                      _gen->capacity(), CHECK);
  72   }
  73 }