jdk8-mips64-public/hotspot: src/share/vm/memory/metaspaceCounters.cpp@f258c5828eb8

8011773: Some tests on Interned String crashed JVM with OOM
Summary: Instead of terminating the VM, throw OutOfMemoryError exceptions.
Reviewed-by: coleenp, dholmes

     1 /*

     2  * Copyright (c) 2012, 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  */

    25 #include "precompiled.hpp"

    26 #include "memory/metaspaceCounters.hpp"

    27 #include "memory/resourceArea.hpp"

    28 #include "utilities/exceptions.hpp"

    30 MetaspaceCounters* MetaspaceCounters::_metaspace_counters = NULL;

    32 MetaspaceCounters::MetaspaceCounters() :

    33     _capacity(NULL),

    34     _used(NULL),

    35     _max_capacity(NULL) {

    36   if (UsePerfData) {

    37     size_t min_capacity = MetaspaceAux::min_chunk_size();

    38     size_t max_capacity = MetaspaceAux::reserved_in_bytes();

    39     size_t curr_capacity = MetaspaceAux::capacity_in_bytes();

    40     size_t used = MetaspaceAux::used_in_bytes();

    42     initialize(min_capacity, max_capacity, curr_capacity, used);

    43   }

    44 }

    46 static PerfVariable* create_ms_variable(const char *ns,

    47                                         const char *name,

    48                                         size_t value,

    49                                         TRAPS) {

    50   const char *path = PerfDataManager::counter_name(ns, name);

    51   PerfVariable *result =

    52       PerfDataManager::create_variable(SUN_GC, path, PerfData::U_Bytes, value,

    53                                        CHECK_NULL);

    54   return result;

    55 }

    57 static void create_ms_constant(const char *ns,

    58                                const char *name,

    59                                size_t value,

    60                                TRAPS) {

    61   const char *path = PerfDataManager::counter_name(ns, name);

    62   PerfDataManager::create_constant(SUN_GC, path, PerfData::U_Bytes, value, CHECK);

    63 }

    65 void MetaspaceCounters::initialize(size_t min_capacity,

    66                                    size_t max_capacity,

    67                                    size_t curr_capacity,

    68                                    size_t used) {

    70   if (UsePerfData) {

    71     EXCEPTION_MARK;

    72     ResourceMark rm;

    74     const char *ms = "metaspace";

    76     create_ms_constant(ms, "minCapacity", min_capacity, CHECK);

    77     _max_capacity = create_ms_variable(ms, "maxCapacity", max_capacity, CHECK);

    78     _capacity = create_ms_variable(ms, "capacity", curr_capacity, CHECK);

    79     _used = create_ms_variable(ms, "used", used, CHECK);

    80   }

    81 }

    83 void MetaspaceCounters::update_capacity() {

    84   assert(UsePerfData, "Should not be called unless being used");

    85   assert(_capacity != NULL, "Should be initialized");

    86   size_t capacity_in_bytes = MetaspaceAux::capacity_in_bytes();

    87   _capacity->set_value(capacity_in_bytes);

    88 }

    90 void MetaspaceCounters::update_used() {

    91   assert(UsePerfData, "Should not be called unless being used");

    92   assert(_used != NULL, "Should be initialized");

    93   size_t used_in_bytes = MetaspaceAux::used_in_bytes();

    94   _used->set_value(used_in_bytes);

    95 }

    97 void MetaspaceCounters::update_max_capacity() {

    98   assert(UsePerfData, "Should not be called unless being used");

    99   assert(_max_capacity != NULL, "Should be initialized");

   100   size_t reserved_in_bytes = MetaspaceAux::reserved_in_bytes();

   101   _max_capacity->set_value(reserved_in_bytes);

   102 }

   104 void MetaspaceCounters::update_all() {

   105   if (UsePerfData) {

   106     update_used();

   107     update_capacity();

   108     update_max_capacity();

   109   }

   110 }

   112 void MetaspaceCounters::initialize_performance_counters() {

   113   if (UsePerfData) {

   114     assert(_metaspace_counters == NULL, "Should only be initialized once");

   115     _metaspace_counters = new MetaspaceCounters();

   116   }

   117 }

   119 void MetaspaceCounters::update_performance_counters() {

   120   if (UsePerfData) {

   121     assert(_metaspace_counters != NULL, "Should be initialized");

   122     _metaspace_counters->update_all();

   123   }

   124 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/memory/metaspaceCounters.cpp@f258c5828eb8

src/share/vm/memory/metaspaceCounters.cpp