1 /* 2 * Copyright (c) 2018, Red Hat, Inc. 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 package gc.epsilon; 25 26 /** 27 * @test TestMaxTLAB 28 * @requires vm.gc.Epsilon 29 * @summary Check EpsilonMaxTLAB options 30 * @bug 8212177 31 * 32 * @run main/othervm -XX:+UnlockExperimentalVMOptions -Xmx128m -XX:+UseEpsilonGC -XX:EpsilonMaxTLABSize=1 gc.epsilon.TestMaxTLAB 33 * @run main/othervm -XX:+UnlockExperimentalVMOptions -Xmx128m -XX:+UseEpsilonGC -XX:EpsilonMaxTLABSize=1K gc.epsilon.TestMaxTLAB 34 * @run main/othervm -XX:+UnlockExperimentalVMOptions -Xmx128m -XX:+UseEpsilonGC -XX:EpsilonMaxTLABSize=1M gc.epsilon.TestMaxTLAB 35 * @run main/othervm -XX:+UnlockExperimentalVMOptions -Xmx128m -XX:+UseEpsilonGC -XX:EpsilonMaxTLABSize=12345 gc.epsilon.TestMaxTLAB 36 * 37 * @run main/othervm -XX:+UnlockExperimentalVMOptions -Xmx128m -XX:+UseEpsilonGC -XX:EpsilonMaxTLABSize=1 -XX:+IgnoreUnrecognizedVMOptions -XX:ObjectAlignmentInBytes=16 gc.epsilon.TestMaxTLAB 38 * @run main/othervm -XX:+UnlockExperimentalVMOptions -Xmx128m -XX:+UseEpsilonGC -XX:EpsilonMaxTLABSize=1K -XX:+IgnoreUnrecognizedVMOptions -XX:ObjectAlignmentInBytes=16 gc.epsilon.TestMaxTLAB 39 * @run main/othervm -XX:+UnlockExperimentalVMOptions -Xmx128m -XX:+UseEpsilonGC -XX:EpsilonMaxTLABSize=1M -XX:+IgnoreUnrecognizedVMOptions -XX:ObjectAlignmentInBytes=16 gc.epsilon.TestMaxTLAB 40 * @run main/othervm -XX:+UnlockExperimentalVMOptions -Xmx128m -XX:+UseEpsilonGC -XX:EpsilonMaxTLABSize=12345 -XX:+IgnoreUnrecognizedVMOptions -XX:ObjectAlignmentInBytes=16 gc.epsilon.TestMaxTLAB 41 */ 42 43 public class TestMaxTLAB { 44 static Object sink; 45 main(String[] args)46 public static void main(String[] args) throws Exception { 47 for (int c = 0; c < 1000; c++) { 48 sink = new byte[c]; 49 } 50 } 51 } 52