diff -r 7fd17c40a180 -r 427945788462 hotspot/test/gc/survivorAlignment/TestPromotionLABLargeSurvivorAlignment.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hotspot/test/gc/survivorAlignment/TestPromotionLABLargeSurvivorAlignment.java Wed Mar 16 14:47:55 2016 -0700 @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/** + * @test + * @bug 8060463 + * @summary Verify that objects promoted from eden space to survivor space + * with large values for SurvivorAlignmentInBytes succeed. + * @requires vm.opt.ExplicitGCInvokesConcurrent != true + * @run main/othervm -Xmx128m + * -XX:+UnlockExperimentalVMOptions + * -XX:SurvivorAlignmentInBytes=8 -XX:SurvivorRatio=1 + * -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB + * TestPromotionLABLargeSurvivorAlignment + * @run main/othervm -Xmx128m + * -XX:+UnlockExperimentalVMOptions + * -XX:SurvivorAlignmentInBytes=16 -XX:SurvivorRatio=1 + * -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB + * TestPromotionLABLargeSurvivorAlignment + * @run main/othervm -Xmx128m + * -XX:+UnlockExperimentalVMOptions + * -XX:SurvivorAlignmentInBytes=512 -XX:SurvivorRatio=1 + * -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB + * TestPromotionLABLargeSurvivorAlignment + * @run main/othervm -Xmx128m + * -XX:+UnlockExperimentalVMOptions + * -XX:SurvivorAlignmentInBytes=1k -XX:SurvivorRatio=1 + * -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB + * TestPromotionLABLargeSurvivorAlignment + * @run main/othervm -Xmx128m + * -XX:+UnlockExperimentalVMOptions + * -XX:SurvivorAlignmentInBytes=4k -XX:SurvivorRatio=1 + * -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB + * TestPromotionLABLargeSurvivorAlignment + * @run main/othervm -Xmx128m + * -XX:+UnlockExperimentalVMOptions + * -XX:SurvivorAlignmentInBytes=16k -XX:SurvivorRatio=1 + * -XX:-ExplicitGCInvokesConcurrent -XX:-ResizePLAB + * TestPromotionLABLargeSurvivorAlignment + */ +public class TestPromotionLABLargeSurvivorAlignment { + public static void main(String args[]) { + Object garbage[] = new Object[1000000]; + for (int i = 0; i < garbage.length; i++) { + garbage[i] = new byte[0]; + } + for (int i = 0; i < 2; i++) { + System.gc(); + } + } +} +