test/hotspot/gtest/memory/test_spaceManager.cpp
branchstuefe-new-metaspace-branch
changeset 58063 bdf136b8ae0e
parent 58062 65cad575ace3
child 58067 b83deb51ea70
equal deleted inserted replaced
58062:65cad575ace3 58063:bdf136b8ae0e
     1 /*
       
     2  * Copyright (c) 2016, 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 #include "precompiled.hpp"
       
    25 #include "memory/metaspace/spaceManager.hpp"
       
    26 
       
    27 using metaspace::SpaceManager;
       
    28 
       
    29 // The test function is only available in debug builds
       
    30 #ifdef ASSERT
       
    31 
       
    32 #include "unittest.hpp"
       
    33 
       
    34 
       
    35 static void test_adjust_initial_chunk_size(bool is_class) {
       
    36   const size_t smallest = SpaceManager::smallest_chunk_size(is_class);
       
    37   const size_t normal   = SpaceManager::small_chunk_size(is_class);
       
    38   const size_t medium   = SpaceManager::medium_chunk_size(is_class);
       
    39 
       
    40 #define do_test(value, expected, is_class_value)                                 \
       
    41     do {                                                                         \
       
    42       size_t v = value;                                                          \
       
    43       size_t e = expected;                                                       \
       
    44       assert(SpaceManager::adjust_initial_chunk_size(v, (is_class_value)) == e,  \
       
    45              "Expected: " SIZE_FORMAT " got: " SIZE_FORMAT, e, v);               \
       
    46     } while (0)
       
    47 
       
    48     // Smallest (specialized)
       
    49     do_test(1,            smallest, is_class);
       
    50     do_test(smallest - 1, smallest, is_class);
       
    51     do_test(smallest,     smallest, is_class);
       
    52 
       
    53     // Small
       
    54     do_test(smallest + 1, normal, is_class);
       
    55     do_test(normal - 1,   normal, is_class);
       
    56     do_test(normal,       normal, is_class);
       
    57 
       
    58     // Medium
       
    59     do_test(normal + 1, medium, is_class);
       
    60     do_test(medium - 1, medium, is_class);
       
    61     do_test(medium,     medium, is_class);
       
    62 
       
    63     // Humongous
       
    64     do_test(medium + 1, medium + 1, is_class);
       
    65 
       
    66 #undef test_adjust_initial_chunk_size
       
    67 }
       
    68 
       
    69 TEST(SpaceManager, adjust_initial_chunk_size) {
       
    70   test_adjust_initial_chunk_size(true);
       
    71   test_adjust_initial_chunk_size(false);
       
    72 }
       
    73 
       
    74 #endif // ASSERT