1 /*
   2  * Copyright (c) 2014, 2019, 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 package gc.survivorAlignment;
  25 
  26 /**
  27  * @test gc.survivorAlignment.TestPromotionFromSurvivorToTenuredAfterFullGC
  28  * @bug 8031323
  29  * @summary Verify that objects promoted from survivor space to tenured space
  30  *          during full GC are not aligned to SurvivorAlignmentInBytes value.
  31  * @requires vm.gc != "Z" & vm.gc != "Shenandoah"
  32  * @library /test/lib
  33  * @library /
  34  * @modules java.base/jdk.internal.misc
  35  *          java.management
  36  * @build sun.hotspot.WhiteBox
  37  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  38  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  39  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  40  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  41  *                   -XX:OldSize=32m -XX:MaxHeapSize=160m
  42  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
  43  *                   -XX:+UnlockExperimentalVMOptions
  44  *                   -XX:SurvivorAlignmentInBytes=32
  45  *                   gc.survivorAlignment.TestPromotionFromSurvivorToTenuredAfterFullGC 10m 9 TENURED
  46  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  47  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  48  *                   -XX:OldSize=32m -XX:MaxHeapSize=160m -XX:-ResizePLAB
  49  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent
  50  *                   -XX:+UnlockExperimentalVMOptions
  51  *                   -XX:SurvivorAlignmentInBytes=32
  52  *                   gc.survivorAlignment.TestPromotionFromSurvivorToTenuredAfterFullGC 20m 47
  53  *                   TENURED
  54  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  55  *                   -XX:+WhiteBoxAPI -XX:NewSize=200m -XX:MaxNewSize=200m
  56  *                   -XX:OldSize=32m -XX:MaxHeapSize=232m
  57  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
  58  *                   -XX:+UnlockExperimentalVMOptions
  59  *                   -XX:SurvivorAlignmentInBytes=64
  60  *                   gc.survivorAlignment.TestPromotionFromSurvivorToTenuredAfterFullGC 10m 9 TENURED
  61  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  62  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  63  *                   -XX:OldSize=32m -XX:MaxHeapSize=160m
  64  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
  65  *                   -XX:+UnlockExperimentalVMOptions
  66  *                   -XX:SurvivorAlignmentInBytes=64
  67  *                   gc.survivorAlignment.TestPromotionFromSurvivorToTenuredAfterFullGC 20m 87
  68  *                   TENURED
  69  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  70  *                   -XX:+WhiteBoxAPI -XX:NewSize=256m -XX:MaxNewSize=256m
  71  *                   -XX:OldSize=32M -XX:MaxHeapSize=288m
  72  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
  73  *                   -XX:+UnlockExperimentalVMOptions
  74  *                   -XX:SurvivorAlignmentInBytes=128
  75  *                    gc.survivorAlignment.TestPromotionFromSurvivorToTenuredAfterFullGC 10m 9
  76  *                    TENURED
  77  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  78  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  79  *                   -XX:OldSize=32m -XX:MaxHeapSize=160m
  80  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB
  81  *                   -XX:+UnlockExperimentalVMOptions
  82  *                   -XX:SurvivorAlignmentInBytes=128
  83  *                   gc.survivorAlignment.TestPromotionFromSurvivorToTenuredAfterFullGC 20m 147
  84  *                   TENURED
  85  */
  86 public class TestPromotionFromSurvivorToTenuredAfterFullGC {
  87     public static void main(String args[]) {
  88         SurvivorAlignmentTestMain test
  89                 = SurvivorAlignmentTestMain.fromArgs(args);
  90         System.out.println(test);
  91 
  92         long expectedMemoryUsage = test.getExpectedMemoryUsage();
  93         test.baselineMemoryAllocation();
  94         System.gc();
  95         // increase expected usage by current old gen usage
  96         expectedMemoryUsage += SurvivorAlignmentTestMain.getAlignmentHelper(
  97                 SurvivorAlignmentTestMain.HeapSpace.TENURED)
  98                 .getActualMemoryUsage();
  99 
 100         test.allocate();
 101         SurvivorAlignmentTestMain.WHITE_BOX.youngGC();
 102         System.gc();
 103 
 104         test.verifyMemoryUsage(expectedMemoryUsage);
 105     }
 106 }