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