| /* |
| * 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 TestShrinkHeapInSteps |
| * @key gc |
| * @summary Verify that -XX:-ShrinkHeapInSteps works properly. |
| * @library /testlibrary |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @build TestMaxMinHeapFreeRatioFlags TestShrinkHeapInSteps |
| * @run driver/timeout=240 TestShrinkHeapInSteps |
| */ |
| |
| import java.util.LinkedList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import jdk.test.lib.Utils; |
| |
| public class TestShrinkHeapInSteps { |
| public static void main(String args[]) throws Exception { |
| LinkedList<String> options = new LinkedList<>( |
| Arrays.asList(Utils.getFilteredTestJavaOpts("-XX:[^ ]*HeapFreeRatio","-XX:\\+ExplicitGCInvokesConcurrent")) |
| ); |
| |
| // Leverage the existing TestMaxMinHeapFreeRatioFlags test, but pass |
| // "false" for the shrinkHeapInSteps argument. This will cause it to |
| // run with -XX:-ShrinkHeapInSteps, and only do 1 full GC instead of 10. |
| TestMaxMinHeapFreeRatioFlags.positiveTest(10, false, 90, false, false, options); |
| TestMaxMinHeapFreeRatioFlags.positiveTest(10, true, 80, false, false, options); |
| TestMaxMinHeapFreeRatioFlags.positiveTest(20, false, 70, true, false, options); |
| TestMaxMinHeapFreeRatioFlags.positiveTest(25, true, 65, true, false, options); |
| TestMaxMinHeapFreeRatioFlags.positiveTest(40, false, 50, false, false, options); |
| } |
| } |