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
test_adjust_initial_chunk_size(bool is_class)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
TEST(SpaceManager,adjust_initial_chunk_size)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
75