1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   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
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  23 
  24 /**
  25  * @test
  26  * @bug 8031323
  27  * @summary Verify that objects promoted from survivor space to tenured space
  28  *          during full GC are not aligned to SurvivorAlignmentInBytes value.
  29  * @library /testlibrary /testlibrary/whitebox
  30  * @build TestPromotionFromSurvivorToTenuredAfterFullGC
  31  *        SurvivorAlignmentTestMain AlignmentHelper
  32  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  33  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  34  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  35  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  36  *                   -XX:OldSize=32m -XX:MaxHeapSize=160m
  37  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent
  38  *                   -XX:+UnlockExperimentalVMOptions
  39  *                   -XX:SurvivorAlignmentInBytes=32
  40  *                   TestPromotionFromSurvivorToTenuredAfterFullGC 10m 9 TENURED
  41  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  42  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  43  *                   -XX:OldSize=32m -XX:MaxHeapSize=160m
  44  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent
  45  *                   -XX:+UnlockExperimentalVMOptions
  46  *                   -XX:SurvivorAlignmentInBytes=32
  47  *                   TestPromotionFromSurvivorToTenuredAfterFullGC 20m 47
  48  *                   TENURED
  49  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  50  *                   -XX:+WhiteBoxAPI -XX:NewSize=200m -XX:MaxNewSize=200m
  51  *                   -XX:OldSize=32m -XX:MaxHeapSize=232m
  52  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent
  53  *                   -XX:+UnlockExperimentalVMOptions
  54  *                   -XX:SurvivorAlignmentInBytes=64
  55  *                   TestPromotionFromSurvivorToTenuredAfterFullGC 10m 9 TENURED
  56  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  57  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  58  *                   -XX:OldSize=32m -XX:MaxHeapSize=160m
  59  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent
  60  *                   -XX:+UnlockExperimentalVMOptions
  61  *                   -XX:SurvivorAlignmentInBytes=64
  62  *                   TestPromotionFromSurvivorToTenuredAfterFullGC 20m 87
  63  *                   TENURED
  64  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  65  *                   -XX:+WhiteBoxAPI -XX:NewSize=256m -XX:MaxNewSize=256m
  66  *                   -XX:OldSize=32M -XX:MaxHeapSize=288m
  67  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent
  68  *                   -XX:+UnlockExperimentalVMOptions
  69  *                   -XX:SurvivorAlignmentInBytes=128
  70  *                    TestPromotionFromSurvivorToTenuredAfterFullGC 10m 9
  71  *                    TENURED
  72  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
  73  *                   -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m
  74  *                   -XX:OldSize=32m -XX:MaxHeapSize=160m
  75  *                   -XX:SurvivorRatio=1 -XX:-ExplicitGCInvokesConcurrent
  76  *                   -XX:+UnlockExperimentalVMOptions
  77  *                   -XX:SurvivorAlignmentInBytes=128
  78  *                   TestPromotionFromSurvivorToTenuredAfterFullGC 20m 147
  79  *                   TENURED
  80  */
  81 public class TestPromotionFromSurvivorToTenuredAfterFullGC {
  82     public static void main(String args[]) {
  83         SurvivorAlignmentTestMain test
  84                 = SurvivorAlignmentTestMain.fromArgs(args);
  85         System.out.println(test);
  86 
  87         long expectedMemoryUsage = test.getExpectedMemoryUsage();
  88         test.baselineMemoryAllocation();
  89         System.gc();
  90         // increase expected usage by current old gen usage
  91         expectedMemoryUsage += SurvivorAlignmentTestMain.getAlignmentHelper(
  92                 SurvivorAlignmentTestMain.HeapSpace.TENURED)
  93                 .getActualMemoryUsage();
  94 
  95         test.allocate();
  96         SurvivorAlignmentTestMain.WHITE_BOX.youngGC();
  97         System.gc();
  98 
  99         test.verifyMemoryUsage(expectedMemoryUsage);
 100     }
 101 }