1/*
2 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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.
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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
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 */
23
24/**
25 * @test
26 * @bug 8031323
27 * @summary Verify that objects promoted from eden space to survivor space after
28 *          minor GC are aligned to SurvivorAlignmentInBytes.
29 * @library /test/lib
30 * @modules java.base/jdk.internal.misc
31 *          java.management
32 * @build sun.hotspot.WhiteBox
33 * @run main ClassFileInstaller sun.hotspot.WhiteBox
34 *                              sun.hotspot.WhiteBox$WhiteBoxPermission
35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
36 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
37 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
38 *                   -XX:SurvivorAlignmentInBytes=32 -XX:OldSize=128m
39 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
40 *                   TestPromotionToSurvivor 10m 9 SURVIVOR
41 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
42 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
43 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
44 *                   -XX:SurvivorAlignmentInBytes=32 -XX:OldSize=128m
45 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
46 *                   TestPromotionToSurvivor 20m 47 SURVIVOR
47 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
48 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
49 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
50 *                   -XX:SurvivorAlignmentInBytes=64 -XX:OldSize=128m
51 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
52 *                   TestPromotionToSurvivor 8m 9 SURVIVOR
53 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
54 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
55 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
56 *                   -XX:SurvivorAlignmentInBytes=64 -XX:OldSize=128m
57 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
58 *                   TestPromotionToSurvivor 20m 87 SURVIVOR
59 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
60 *                   -XX:+WhiteBoxAPI -XX:NewSize=256m -XX:MaxNewSize=256m
61 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
62 *                   -XX:SurvivorAlignmentInBytes=128 -XX:OldSize=128m
63 *                   -XX:MaxHeapSize=384m  -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
64 *                   TestPromotionToSurvivor 10m 9 SURVIVOR
65 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
66 *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
67 *                   -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions
68 *                   -XX:SurvivorAlignmentInBytes=128 -XX:OldSize=128m
69 *                   -XX:MaxHeapSize=256m -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
70 *                   TestPromotionToSurvivor 20m 147 SURVIVOR
71 */
72public class TestPromotionToSurvivor {
73    public static void main(String args[]) {
74        SurvivorAlignmentTestMain test
75                = SurvivorAlignmentTestMain.fromArgs(args);
76        System.out.println(test);
77
78        long expectedUsage = test.getExpectedMemoryUsage();
79        test.baselineMemoryAllocation();
80        SurvivorAlignmentTestMain.WHITE_BOX.fullGC();
81
82        test.allocate();
83        SurvivorAlignmentTestMain.WHITE_BOX.youngGC();
84
85        test.verifyMemoryUsage(expectedUsage);
86    }
87}
88