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.
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 /**
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 */
72 public 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 }