jdk8-mips64-public/hotspot: src/share/vm/services/psMemoryPool.cpp@7bb995fbd3c0

     1 /*

     2  * Copyright (c) 2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 # include "incls/_precompiled.incl"

    26 # include "incls/_psMemoryPool.cpp.incl"

    28 PSGenerationPool::PSGenerationPool(PSOldGen* gen,

    29                                    const char* name,

    30                                    PoolType type,

    31                                    bool support_usage_threshold) :

    32   CollectedMemoryPool(name, type, gen->capacity_in_bytes(),

    33                       gen->reserved().byte_size(), support_usage_threshold), _gen(gen) {

    34 }

    36 PSGenerationPool::PSGenerationPool(PSPermGen* gen,

    37                                    const char* name,

    38                                    PoolType type,

    39                                    bool support_usage_threshold) :

    40   CollectedMemoryPool(name, type, gen->capacity_in_bytes(),

    41                       gen->reserved().byte_size(), support_usage_threshold), _gen(gen) {

    42 }

    44 MemoryUsage PSGenerationPool::get_memory_usage() {

    45   size_t maxSize   = (available_for_allocation() ? max_size() : 0);

    46   size_t used      = used_in_bytes();

    47   size_t committed = _gen->capacity_in_bytes();

    49   return MemoryUsage(initial_size(), used, committed, maxSize);

    50 }

    52 // The max size of EdenMutableSpacePool =

    53 //     max size of the PSYoungGen - capacity of two survivor spaces

    54 //

    55 // Max size of PS eden space is changing due to ergonomic.

    56 // PSYoungGen, PSOldGen, Eden, Survivor spaces are all resizable.

    57 //

    58 EdenMutableSpacePool::EdenMutableSpacePool(PSYoungGen* gen,

    59                                            MutableSpace* space,

    60                                            const char* name,

    61                                            PoolType type,

    62                                            bool support_usage_threshold) :

    63   CollectedMemoryPool(name, type, space->capacity_in_bytes(),

    64                       (gen->max_size() - gen->from_space()->capacity_in_bytes() - gen->to_space()->capacity_in_bytes()),

    65                        support_usage_threshold),

    66   _gen(gen), _space(space) {

    67 }

    69 MemoryUsage EdenMutableSpacePool::get_memory_usage() {

    70   size_t maxSize   = (available_for_allocation() ? max_size() : 0);

    71   size_t used = used_in_bytes();

    72   size_t committed = _space->capacity_in_bytes();

    74   return MemoryUsage(initial_size(), used, committed, maxSize);

    75 }

    77 // The max size of SurvivorMutableSpacePool =

    78 //     current capacity of the from-space

    79 //

    80 // PS from and to survivor spaces could have different sizes.

    81 //

    82 SurvivorMutableSpacePool::SurvivorMutableSpacePool(PSYoungGen* gen,

    83                                                    const char* name,

    84                                                    PoolType type,

    85                                                    bool support_usage_threshold) :

    86   CollectedMemoryPool(name, type, gen->from_space()->capacity_in_bytes(),

    87                       gen->from_space()->capacity_in_bytes(),

    88                       support_usage_threshold), _gen(gen) {

    89 }

    91 MemoryUsage SurvivorMutableSpacePool::get_memory_usage() {

    92   size_t maxSize = (available_for_allocation() ? max_size() : 0);

    93   size_t used    = used_in_bytes();

    94   size_t committed = committed_in_bytes();

    95   return MemoryUsage(initial_size(), used, committed, maxSize);

    96 }

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