| /* |
| * Copyright (c) 2013, 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. |
| */ |
| |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.OutputAnalyzer; |
| import jdk.test.lib.ProcessTools; |
| |
| /* |
| * @test TestMetaspaceSizeFlags |
| * @key gc |
| * @bug 8024650 |
| * @summary Test that metaspace size flags can be set correctly |
| * @library /testlibrary |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| */ |
| public class TestMetaspaceSizeFlags { |
| public static final long K = 1024L; |
| public static final long M = 1024L * K; |
| |
| // HotSpot uses a number of different values to align memory size flags. |
| // This is currently the largest alignment (unless huge large pages are used). |
| public static final long MAX_ALIGNMENT = 32 * M; |
| |
| public static void main(String [] args) throws Exception { |
| testMaxMetaspaceSizeEQMetaspaceSize(MAX_ALIGNMENT, MAX_ALIGNMENT); |
| // 8024650: MaxMetaspaceSize was adjusted instead of MetaspaceSize. |
| testMaxMetaspaceSizeLTMetaspaceSize(MAX_ALIGNMENT, MAX_ALIGNMENT * 2); |
| testMaxMetaspaceSizeGTMetaspaceSize(MAX_ALIGNMENT * 2, MAX_ALIGNMENT); |
| } |
| |
| private static void testMaxMetaspaceSizeEQMetaspaceSize(long maxMetaspaceSize, long metaspaceSize) throws Exception { |
| MetaspaceFlags mf = runAndGetValue(maxMetaspaceSize, metaspaceSize); |
| Asserts.assertEQ(maxMetaspaceSize, metaspaceSize); |
| Asserts.assertEQ(mf.maxMetaspaceSize, maxMetaspaceSize); |
| Asserts.assertEQ(mf.metaspaceSize, metaspaceSize); |
| } |
| |
| private static void testMaxMetaspaceSizeLTMetaspaceSize(long maxMetaspaceSize, long metaspaceSize) throws Exception { |
| MetaspaceFlags mf = runAndGetValue(maxMetaspaceSize, metaspaceSize); |
| Asserts.assertEQ(mf.maxMetaspaceSize, maxMetaspaceSize); |
| Asserts.assertEQ(mf.metaspaceSize, maxMetaspaceSize); |
| } |
| |
| private static void testMaxMetaspaceSizeGTMetaspaceSize(long maxMetaspaceSize, long metaspaceSize) throws Exception { |
| MetaspaceFlags mf = runAndGetValue(maxMetaspaceSize, metaspaceSize); |
| Asserts.assertGT(maxMetaspaceSize, metaspaceSize); |
| Asserts.assertGT(mf.maxMetaspaceSize, mf.metaspaceSize); |
| Asserts.assertEQ(mf.maxMetaspaceSize, maxMetaspaceSize); |
| Asserts.assertEQ(mf.metaspaceSize, metaspaceSize); |
| } |
| |
| private static MetaspaceFlags runAndGetValue(long maxMetaspaceSize, long metaspaceSize) throws Exception { |
| OutputAnalyzer output = run(maxMetaspaceSize, metaspaceSize); |
| output.shouldNotMatch("Error occurred during initialization of VM\n.*"); |
| |
| String stringMaxMetaspaceSize = output.firstMatch(".* MaxMetaspaceSize .* := (\\d+).*", 1); |
| String stringMetaspaceSize = output.firstMatch(".* MetaspaceSize .* := (\\d+).*", 1); |
| |
| return new MetaspaceFlags(Long.parseLong(stringMaxMetaspaceSize), |
| Long.parseLong(stringMetaspaceSize)); |
| } |
| |
| private static OutputAnalyzer run(long maxMetaspaceSize, long metaspaceSize) throws Exception { |
| ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( |
| "-XX:MaxMetaspaceSize=" + maxMetaspaceSize, |
| "-XX:MetaspaceSize=" + metaspaceSize, |
| "-XX:-UseLargePages", // Prevent us from using 2GB large pages on solaris + sparc. |
| "-XX:+PrintFlagsFinal", |
| "-version"); |
| return new OutputAnalyzer(pb.start()); |
| } |
| |
| private static class MetaspaceFlags { |
| public long maxMetaspaceSize; |
| public long metaspaceSize; |
| public MetaspaceFlags(long maxMetaspaceSize, long metaspaceSize) { |
| this.maxMetaspaceSize = maxMetaspaceSize; |
| this.metaspaceSize = metaspaceSize; |
| } |
| } |
| } |