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 survivor space to tenured space 28 * when their age exceeded tenuring threshold are not aligned to 29 * SurvivorAlignmentInBytes value. 30 * @requires vm.gc != "Z" 31 * @library /test/lib 32 * @modules java.base/jdk.internal.misc 33 * java.management 34 * @build sun.hotspot.WhiteBox 35 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 36 * sun.hotspot.WhiteBox$WhiteBoxPermission 37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 38 * -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m 39 * -XX:OldSize=32M -XX:MaxHeapSize=160m -XX:SurvivorRatio=1 -XX:-ResizePLAB 40 * -XX:-ExplicitGCInvokesConcurrent 41 * -XX:+UnlockExperimentalVMOptions 42 * -XX:SurvivorAlignmentInBytes=32 43 * TestPromotionFromSurvivorToTenuredAfterMinorGC 10m 9 44 * TENURED 45 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 46 * -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m 47 * -XX:OldSize=32M -XX:MaxHeapSize=160m -XX:SurvivorRatio=1 -XX:-ResizePLAB 48 * -XX:-ExplicitGCInvokesConcurrent 49 * -XX:+UnlockExperimentalVMOptions 50 * -XX:SurvivorAlignmentInBytes=32 51 * TestPromotionFromSurvivorToTenuredAfterMinorGC 20m 47 52 * TENURED 53 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 54 * -XX:+WhiteBoxAPI -XX:NewSize=200m -XX:MaxNewSize=200m 55 * -XX:OldSize=32M -XX:MaxHeapSize=232m -XX:SurvivorRatio=1 -XX:-ResizePLAB 56 * -XX:-ExplicitGCInvokesConcurrent 57 * -XX:+UnlockExperimentalVMOptions 58 * -XX:SurvivorAlignmentInBytes=64 59 * TestPromotionFromSurvivorToTenuredAfterMinorGC 10m 9 60 * 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 -XX:SurvivorRatio=1 -XX:-ResizePLAB 64 * -XX:-ExplicitGCInvokesConcurrent 65 * -XX:+UnlockExperimentalVMOptions 66 * -XX:SurvivorAlignmentInBytes=64 67 * TestPromotionFromSurvivorToTenuredAfterMinorGC 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 -XX:SurvivorRatio=1 -XX:-ResizePLAB 72 * -XX:-ExplicitGCInvokesConcurrent 73 * -XX:+UnlockExperimentalVMOptions 74 * -XX:SurvivorAlignmentInBytes=128 75 * TestPromotionFromSurvivorToTenuredAfterMinorGC 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 -XX:SurvivorRatio=1 -XX:-ResizePLAB 80 * -XX:-ExplicitGCInvokesConcurrent 81 * -XX:+UnlockExperimentalVMOptions 82 * -XX:SurvivorAlignmentInBytes=128 83 * TestPromotionFromSurvivorToTenuredAfterMinorGC 20m 147 84 * TENURED 85 */ 86 public class TestPromotionFromSurvivorToTenuredAfterMinorGC { 87 public static void main(String args[]) throws Exception { 88 SurvivorAlignmentTestMain test 89 = SurvivorAlignmentTestMain.fromArgs(args); 90 System.out.println(test); 91 92 long expectedMemoryUsage = test.getExpectedMemoryUsage(); 93 test.baselineMemoryAllocation(); 94 SurvivorAlignmentTestMain.WHITE_BOX.fullGC(); 95 // increase expected usage by current old gen usage 96 expectedMemoryUsage += SurvivorAlignmentTestMain.getAlignmentHelper( 97 SurvivorAlignmentTestMain.HeapSpace.TENURED) 98 .getActualMemoryUsage(); 99 100 test.allocate(); 101 for (int i = 0; i <= SurvivorAlignmentTestMain.MAX_TENURING_THRESHOLD; i++) { 102 SurvivorAlignmentTestMain.WHITE_BOX.youngGC(); 103 } 104 105 // Sometimes we see that data unrelated to the test has been allocated during 106 // the loop. This data is included in the expectedMemoryUsage since we look 107 // through all threads to see what they allocated. If this data is still in 108 // the survivor area however, it should not be included in expectedMemoryUsage 109 // since the verification below only look at what's in tenured space. 110 expectedMemoryUsage -= SurvivorAlignmentTestMain.getAlignmentHelper( 111 SurvivorAlignmentTestMain.HeapSpace.SURVIVOR) 112 .getActualMemoryUsage(); 113 test.verifyMemoryUsage(expectedMemoryUsage); 114 } 115 }