src/hotspot/share/gc/shared/generationCounters.cpp
author stefank
Thu, 22 Feb 2018 18:36:32 +0100
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parent 48157 7c4d43c26352
child 58084 cddef3bde924
permissions -rw-r--r--
8198525: Move _size_policy out of GenCollectorPolicy into GenCollectedHeap Reviewed-by: pliden, sjohanss
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/*
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 * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "gc/shared/generationCounters.hpp"
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#include "memory/allocation.inline.hpp"
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#include "memory/resourceArea.hpp"
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void GenerationCounters::initialize(const char* name, int ordinal, int spaces,
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                                    size_t min_capacity, size_t max_capacity,
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                                    size_t curr_capacity) {
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  if (UsePerfData) {
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    EXCEPTION_MARK;
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    ResourceMark rm;
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    const char* cns = PerfDataManager::name_space("generation", ordinal);
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    _name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtGC);
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    strcpy(_name_space, cns);
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    const char* cname = PerfDataManager::counter_name(_name_space, "name");
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    PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK);
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    cname = PerfDataManager::counter_name(_name_space, "spaces");
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    PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_None,
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                                     spaces, CHECK);
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    cname = PerfDataManager::counter_name(_name_space, "minCapacity");
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    PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
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                                     min_capacity, CHECK);
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    cname = PerfDataManager::counter_name(_name_space, "maxCapacity");
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    PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
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                                     max_capacity, CHECK);
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    cname = PerfDataManager::counter_name(_name_space, "capacity");
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    _current_size =
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      PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes,
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                                       curr_capacity, CHECK);
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  }
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}
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GenerationCounters::GenerationCounters(const char* name,
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                                       int ordinal, int spaces,
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                                       size_t min_capacity, size_t max_capacity,
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                                       VirtualSpace* v)
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  : _virtual_space(v) {
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  assert(v != NULL, "don't call this constructor if v == NULL");
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  initialize(name, ordinal, spaces,
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             min_capacity, max_capacity, v->committed_size());
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}
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GenerationCounters::GenerationCounters(const char* name,
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                                       int ordinal, int spaces,
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                                       size_t min_capacity, size_t max_capacity,
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                                       size_t curr_capacity)
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  : _virtual_space(NULL) {
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  initialize(name, ordinal, spaces, min_capacity, max_capacity, curr_capacity);
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}
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GenerationCounters::~GenerationCounters() {
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  if (_name_space != NULL) {
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    FREE_C_HEAP_ARRAY(char, _name_space);
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  }
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}
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void GenerationCounters::update_all() {
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  assert(_virtual_space != NULL, "otherwise, override this method");
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  _current_size->set_value(_virtual_space->committed_size());
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}