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 eden space to survivor space after 28 * minor GC are aligned to SurvivorAlignmentInBytes. 29 * @library /testlibrary /testlibrary/whitebox 30 * @build TestPromotionToSurvivor 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:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions 37 * -XX:SurvivorAlignmentInBytes=32 -XX:OldSize=128m 38 * -XX:-ExplicitGCInvokesConcurrent 39 * TestPromotionToSurvivor 10m 9 SURVIVOR 40 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 41 * -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m 42 * -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions 43 * -XX:SurvivorAlignmentInBytes=32 -XX:OldSize=128m 44 * TestPromotionToSurvivor 20m 47 SURVIVOR 45 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 46 * -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m 47 * -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions 48 * -XX:SurvivorAlignmentInBytes=64 -XX:OldSize=128m 49 * -XX:-ExplicitGCInvokesConcurrent 50 * TestPromotionToSurvivor 8m 9 SURVIVOR 51 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 52 * -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m 53 * -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions 54 * -XX:SurvivorAlignmentInBytes=64 -XX:OldSize=128m 55 * -XX:-ExplicitGCInvokesConcurrent 56 * TestPromotionToSurvivor 20m 87 SURVIVOR 57 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 58 * -XX:+WhiteBoxAPI -XX:NewSize=256m -XX:MaxNewSize=256m 59 * -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions 60 * -XX:SurvivorAlignmentInBytes=128 -XX:OldSize=32m 61 * -XX:InitialHeapSize=288m -XX:-ExplicitGCInvokesConcurrent 62 * TestPromotionToSurvivor 10m 9 SURVIVOR 63 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 64 * -XX:+WhiteBoxAPI -XX:NewSize=128m -XX:MaxNewSize=128m 65 * -XX:SurvivorRatio=1 -XX:+UnlockExperimentalVMOptions 66 * -XX:SurvivorAlignmentInBytes=128 -XX:OldSize=128m 67 * -XX:-ExplicitGCInvokesConcurrent 68 * TestPromotionToSurvivor 20m 147 SURVIVOR 69 */ 70 public class TestPromotionToSurvivor { 71 public static void main(String args[]) { 72 SurvivorAlignmentTestMain test 73 = SurvivorAlignmentTestMain.fromArgs(args); 74 System.out.println(test); 75 76 long expectedUsage = test.getExpectedMemoryUsage(); 77 test.baselineMemoryAllocation(); 78 SurvivorAlignmentTestMain.WHITE_BOX.fullGC(); 79 80 test.allocate(); 81 SurvivorAlignmentTestMain.WHITE_BOX.youngGC(); 82 83 test.verifyMemoryUsage(expectedUsage); 84 } 85 }