1 /* 2 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2020 SAP SE. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 /* 27 * @test id=debug 28 * @bug 8251158 29 * @library /test/lib 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 * @build sun.hotspot.WhiteBox 33 * @requires (vm.debug == true) 34 * 35 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 36 * 37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:VerifyMetaspaceInterval=10 TestMetaspaceAllocation 38 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:VerifyMetaspaceInterval=10 -XX:MetaspaceReclaimPolicy=none TestMetaspaceAllocation 39 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:VerifyMetaspaceInterval=10 -XX:MetaspaceReclaimPolicy=aggressive TestMetaspaceAllocation 40 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:VerifyMetaspaceInterval=10 -XX:+MetaspaceGuardAllocations TestMetaspaceAllocation 41 * 42 */ 43 44 /* 45 * @test id=ndebug 46 * @bug 8251158 47 * @library /test/lib 48 * @modules java.base/jdk.internal.misc 49 * java.management 50 * @build sun.hotspot.WhiteBox 51 * @requires (vm.debug == false) 52 * 53 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 54 * 55 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI TestMetaspaceAllocation 56 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:MetaspaceReclaimPolicy=none TestMetaspaceAllocation 57 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:MetaspaceReclaimPolicy=aggressive TestMetaspaceAllocation 58 */ 59 60 public class TestMetaspaceAllocation { 61 62 public static void main(String[] args) { 63 64 MetaspaceTestContext context = new MetaspaceTestContext(); 65 MetaspaceTestArena arena1 = context.createArena(false, 1024 * 1024 * 4); 66 MetaspaceTestArena arena2 = context.createArena(true,1024 * 1024 * 4); 67 68 Allocation a1 = arena1.allocate(100); 69 Allocation a2 = arena2.allocate(100); 70 71 long used = context.usedWords(); 72 long committed = context.committedWords(); 73 74 System.out.println("used " + used + " committed " + committed); 75 76 arena1.deallocate(a1); 77 78 context.destroyArena(arena2); 79 context.destroyArena(arena1); 80 81 context.purge(); 82 83 context.destroy(); 84 85 } 86 }