1 /*

     2  * Copyright (c) 2019, SAP SE. All rights reserved.

     3  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  */

    24 

    25 #include "precompiled.hpp"

    26 #include "memory/metaspace.hpp"

    27 #include "unittest.hpp"

    28 

    29 

    30 TEST_VM(MetaspaceUtils, reserved) {

    31   size_t reserved = MetaspaceUtils::reserved_bytes();

    32   EXPECT_GT(reserved, 0UL);

    33 

    34   size_t reserved_metadata = MetaspaceUtils::reserved_bytes(metaspace::NonClassType);

    35   EXPECT_GT(reserved_metadata, 0UL);

    36   EXPECT_LE(reserved_metadata, reserved);

    37 }

    38 

    39 TEST_VM(MetaspaceUtils, reserved_compressed_class_pointers) {

    40   if (!UseCompressedClassPointers) {

    41     return;

    42   }

    43   size_t reserved = MetaspaceUtils::reserved_bytes();

    44   EXPECT_GT(reserved, 0UL);

    45 

    46   size_t reserved_class = MetaspaceUtils::reserved_bytes(metaspace::ClassType);

    47   EXPECT_GT(reserved_class, 0UL);

    48   EXPECT_LE(reserved_class, reserved);

    49 }

    50 

    51 TEST_VM(MetaspaceUtils, committed) {

    52   size_t committed = MetaspaceUtils::committed_bytes();

    53   EXPECT_GT(committed, 0UL);

    54 

    55   size_t reserved  = MetaspaceUtils::reserved_bytes();

    56   EXPECT_LE(committed, reserved);

    57 

    58   size_t committed_metadata = MetaspaceUtils::committed_bytes(metaspace::NonClassType);

    59   EXPECT_GT(committed_metadata, 0UL);

    60   EXPECT_LE(committed_metadata, committed);

    61 }

    62 

    63 TEST_VM(MetaspaceUtils, committed_compressed_class_pointers) {

    64   if (!UseCompressedClassPointers) {

    65     return;

    66   }

    67   size_t committed = MetaspaceUtils::committed_bytes();

    68   EXPECT_GT(committed, 0UL);

    69 

    70   size_t committed_class = MetaspaceUtils::committed_bytes(metaspace::ClassType);

    71   EXPECT_GT(committed_class, 0UL);

    72   EXPECT_LE(committed_class, committed);

    73 }

    74