jdk8-mips64-public/hotspot: src/share/vm/memory/metaspaceChunkFreeListSummary.hpp@9fdaa79b0c27

8036703: Add trace event with statistics for the metaspace chunk free lists
Reviewed-by: stefank, mgerdin, coleenp, egahlin

     1 /*

     2  * Copyright (c) 2014, 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 #ifndef SHARE_VM_MEMORY_METASPACE_CHUNK_FREE_LIST_SUMMARY_HPP

    25 #define SHARE_VM_MEMORY_METASPACE_CHUNK_FREE_LIST_SUMMARY_HPP

    27 #include "memory/allocation.hpp"

    29 class MetaspaceChunkFreeListSummary VALUE_OBJ_CLASS_SPEC {

    30   size_t _num_specialized_chunks;

    31   size_t _num_small_chunks;

    32   size_t _num_medium_chunks;

    33   size_t _num_humongous_chunks;

    35   size_t _specialized_chunks_size_in_bytes;

    36   size_t _small_chunks_size_in_bytes;

    37   size_t _medium_chunks_size_in_bytes;

    38   size_t _humongous_chunks_size_in_bytes;

    40  public:

    41   MetaspaceChunkFreeListSummary() :

    42     _num_specialized_chunks(0),

    43     _num_small_chunks(0),

    44     _num_medium_chunks(0),

    45     _num_humongous_chunks(0),

    46     _specialized_chunks_size_in_bytes(0),

    47     _small_chunks_size_in_bytes(0),

    48     _medium_chunks_size_in_bytes(0),

    49     _humongous_chunks_size_in_bytes(0)

    50   {}

    52   MetaspaceChunkFreeListSummary(size_t num_specialized_chunks,

    53                                 size_t num_small_chunks,

    54                                 size_t num_medium_chunks,

    55                                 size_t num_humongous_chunks,

    56                                 size_t specialized_chunks_size_in_bytes,

    57                                 size_t small_chunks_size_in_bytes,

    58                                 size_t medium_chunks_size_in_bytes,

    59                                 size_t humongous_chunks_size_in_bytes) :

    60     _num_specialized_chunks(num_specialized_chunks),

    61     _num_small_chunks(num_small_chunks),

    62     _num_medium_chunks(num_medium_chunks),

    63     _num_humongous_chunks(num_humongous_chunks),

    64     _specialized_chunks_size_in_bytes(specialized_chunks_size_in_bytes),

    65     _small_chunks_size_in_bytes(small_chunks_size_in_bytes),

    66     _medium_chunks_size_in_bytes(medium_chunks_size_in_bytes),

    67     _humongous_chunks_size_in_bytes(humongous_chunks_size_in_bytes)

    68   {}

    70   size_t num_specialized_chunks() const {

    71     return _num_specialized_chunks;

    72   }

    74   size_t num_small_chunks() const {

    75     return _num_small_chunks;

    76   }

    78   size_t num_medium_chunks() const {

    79     return _num_medium_chunks;

    80   }

    82   size_t num_humongous_chunks() const {

    83     return _num_humongous_chunks;

    84   }

    86   size_t specialized_chunks_size_in_bytes() const {

    87     return _specialized_chunks_size_in_bytes;

    88   }

    90   size_t small_chunks_size_in_bytes() const {

    91     return _small_chunks_size_in_bytes;

    92   }

    94   size_t medium_chunks_size_in_bytes() const {

    95     return _medium_chunks_size_in_bytes;

    96   }

    98   size_t humongous_chunks_size_in_bytes() const {

    99     return _humongous_chunks_size_in_bytes;

   100   }

   101 };

   103 #endif // SHARE_VM_MEMORY_METASPACE_CHUNK_FREE_LIST_SUMMARY_HPP

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