1 /*
   2  * Copyright (c) 2014, 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 tenured space during
  28  *          full GC are not aligned to SurvivorAlignmentInBytes value.
  29  * @requires vm.gc != "Shenandoah"
  30  * @library /testlibrary /testlibrary/whitebox
  31  * @build TestPromotionFromEdenToTenured SurvivorAlignmentTestMain
  32  *        AlignmentHelper
  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=64m -XX:MaxNewSize=64m
  37  *                   -XX:OldSize=32m -XX:MaxHeapSize=96m -XX:SurvivorRatio=1
  38  *                   -XX:-ExplicitGCInvokesConcurrent
  39  *                   -XX:+UnlockExperimentalVMOptions
  40  *                   -XX:SurvivorAlignmentInBytes=32
  41  *                   TestPromotionFromEdenToTenured 10m 9 TENURED
  42  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  43  *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
  44  *                   -XX:OldSize=32m -XX:MaxHeapSize=96m -XX:SurvivorRatio=1
  45  *                   -XX:-ExplicitGCInvokesConcurrent
  46  *                   -XX:+UnlockExperimentalVMOptions
  47  *                   -XX:SurvivorAlignmentInBytes=32
  48  *                   TestPromotionFromEdenToTenured 10m 47 TENURED
  49  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  50  *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
  51  *                   -XX:OldSize=32m  -XX:MaxHeapSize=96m
  52  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent
  53  *                   -XX:+UnlockExperimentalVMOptions
  54  *                   -XX:SurvivorAlignmentInBytes=64
  55  *                   TestPromotionFromEdenToTenured 10m 9 TENURED
  56  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  57  *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
  58  *                   -XX:OldSize=32m -XX:MaxHeapSize=128m
  59  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent
  60  *                   -XX:+UnlockExperimentalVMOptions
  61  *                   -XX:SurvivorAlignmentInBytes=64
  62  *                   TestPromotionFromEdenToTenured 10m 87 TENURED
  63  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  64  *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
  65  *                   -XX:OldSize=32M -XX:MaxHeapSize=96m -XX:SurvivorRatio=1
  66  *                   -XX:-ExplicitGCInvokesConcurrent
  67  *                   -XX:+UnlockExperimentalVMOptions
  68  *                   -XX:SurvivorAlignmentInBytes=128
  69  *                   TestPromotionFromEdenToTenured 10m 9 TENURED
  70  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  71  *                   -XX:+WhiteBoxAPI -XX:NewSize=64m -XX:MaxNewSize=64m
  72  *                   -XX:OldSize=32m -XX:MaxHeapSize=96m -XX:SurvivorRatio=1
  73  *                   -XX:-ExplicitGCInvokesConcurrent
  74  *                   -XX:+UnlockExperimentalVMOptions
  75  *                   -XX:SurvivorAlignmentInBytes=128
  76  *                   TestPromotionFromEdenToTenured 10m 147 TENURED
  77  */
  78 public class TestPromotionFromEdenToTenured {
  79     public static void main(String args[]) {
  80         SurvivorAlignmentTestMain test
  81                 = SurvivorAlignmentTestMain.fromArgs(args);
  82         System.out.println(test);
  83 
  84         long expectedMemoryUsage = test.getExpectedMemoryUsage();
  85         test.baselineMemoryAllocation();
  86         System.gc();
  87         // increase expected usage by current old gen usage
  88         expectedMemoryUsage += SurvivorAlignmentTestMain.getAlignmentHelper(
  89                 SurvivorAlignmentTestMain.HeapSpace.TENURED)
  90                 .getActualMemoryUsage();
  91 
  92         test.allocate();
  93         System.gc();
  94 
  95         test.verifyMemoryUsage(expectedMemoryUsage);
  96     }
  97 }