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 survivor space to tenured space
  28  *          when their age exceeded tenuring threshold are not aligned to
  29  *          SurvivorAlignmentInBytes value.
  30  * @library /testlibrary /testlibrary/whitebox
  31  * @build TestPromotionFromSurvivorToTenuredAfterMinorGC
  32  *        SurvivorAlignmentTestMain 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=128m -XX:MaxNewSize=128m
  37  *                   -XX:OldSize=32M -XX:MaxHeapSize=160m -XX:SurvivorRatio=1
  38  *                   -XX:-ExplicitGCInvokesConcurrent
  39  *                   -XX:+UnlockExperimentalVMOptions
  40  *                   -XX:SurvivorAlignmentInBytes=32
  41  *                   TestPromotionFromSurvivorToTenuredAfterMinorGC 10m 9
  42  *                   TENURED
  43  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  44  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  45  *                   -XX:OldSize=32M -XX:MaxHeapSize=160m -XX:SurvivorRatio=1
  46  *                   -XX:-ExplicitGCInvokesConcurrent
  47  *                   -XX:+UnlockExperimentalVMOptions
  48  *                   -XX:SurvivorAlignmentInBytes=32
  49  *                   TestPromotionFromSurvivorToTenuredAfterMinorGC 20m 47
  50  *                   TENURED
  51  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  52  *                   -XX:+WhiteBoxAPI -XX:NewSize=200m -XX:MaxNewSize=200m
  53  *                   -XX:OldSize=32M -XX:MaxHeapSize=232m -XX:SurvivorRatio=1
  54  *                   -XX:-ExplicitGCInvokesConcurrent
  55  *                   -XX:+UnlockExperimentalVMOptions
  56  *                   -XX:SurvivorAlignmentInBytes=64
  57  *                   TestPromotionFromSurvivorToTenuredAfterMinorGC 10m 9
  58  *                   TENURED
  59  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  60  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  61  *                   -XX:OldSize=32M -XX:MaxHeapSize=160m -XX:SurvivorRatio=1
  62  *                   -XX:-ExplicitGCInvokesConcurrent
  63  *                   -XX:+UnlockExperimentalVMOptions
  64  *                   -XX:SurvivorAlignmentInBytes=64
  65  *                   TestPromotionFromSurvivorToTenuredAfterMinorGC 20m 87
  66  *                   TENURED
  67  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  68  *                   -XX:+WhiteBoxAPI -XX:NewSize=256m -XX:MaxNewSize=256m
  69  *                   -XX:OldSize=32M -XX:MaxHeapSize=288m -XX:SurvivorRatio=1
  70  *                   -XX:-ExplicitGCInvokesConcurrent
  71  *                   -XX:+UnlockExperimentalVMOptions
  72  *                   -XX:SurvivorAlignmentInBytes=128
  73  *                    TestPromotionFromSurvivorToTenuredAfterMinorGC 10m 9
  74  *                    TENURED
  75  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  76  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  77  *                   -XX:OldSize=32M -XX:MaxHeapSize=160m -XX:SurvivorRatio=1
  78  *                   -XX:-ExplicitGCInvokesConcurrent
  79  *                   -XX:+UnlockExperimentalVMOptions
  80  *                   -XX:SurvivorAlignmentInBytes=128
  81  *                   TestPromotionFromSurvivorToTenuredAfterMinorGC 20m 147
  82  *                   TENURED
  83  */
  84 public class TestPromotionFromSurvivorToTenuredAfterMinorGC {
  85     public static void main(String args[]) throws Exception {
  86         SurvivorAlignmentTestMain test
  87                 = SurvivorAlignmentTestMain.fromArgs(args);
  88         System.out.println(test);
  89 
  90         long expectedMemoryUsage = test.getExpectedMemoryUsage();
  91         test.baselineMemoryAllocation();
  92         SurvivorAlignmentTestMain.WHITE_BOX.fullGC();
  93         // increase expected usage by current old gen usage
  94         expectedMemoryUsage += SurvivorAlignmentTestMain.getAlignmentHelper(
  95                 SurvivorAlignmentTestMain.HeapSpace.TENURED)
  96                 .getActualMemoryUsage();
  97 
  98         test.allocate();
  99         for (int i = 0; i <= SurvivorAlignmentTestMain.MAX_TENURING_THRESHOLD;
 100              i++) {
 101             SurvivorAlignmentTestMain.WHITE_BOX.youngGC();
 102         }
 103 
 104         test.verifyMemoryUsage(expectedMemoryUsage);
 105     }
 106 }