104 lines
4.4 KiB
Java
104 lines
4.4 KiB
Java
/*
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* Copyright (c) 2013, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package gc.metaspace;
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import jdk.test.lib.Asserts;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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/*
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* @test TestMetaspaceSizeFlags
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* @bug 8024650
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* @summary Test that metaspace size flags can be set correctly
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.management
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* @run driver gc.metaspace.TestMetaspaceSizeFlags
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*/
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public class TestMetaspaceSizeFlags {
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public static final long K = 1024L;
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public static final long M = 1024L * K;
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// HotSpot uses a number of different values to align memory size flags.
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// This is currently the largest alignment (unless huge large pages are used).
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public static final long MAX_ALIGNMENT = 32 * M;
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public static void main(String [] args) throws Exception {
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testMaxMetaspaceSizeEQMetaspaceSize(MAX_ALIGNMENT, MAX_ALIGNMENT);
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// 8024650: MaxMetaspaceSize was adjusted instead of MetaspaceSize.
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testMaxMetaspaceSizeLTMetaspaceSize(MAX_ALIGNMENT, MAX_ALIGNMENT * 2);
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testMaxMetaspaceSizeGTMetaspaceSize(MAX_ALIGNMENT * 2, MAX_ALIGNMENT);
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}
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private static void testMaxMetaspaceSizeEQMetaspaceSize(long maxMetaspaceSize, long metaspaceSize) throws Exception {
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MetaspaceFlags mf = runAndGetValue(maxMetaspaceSize, metaspaceSize);
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Asserts.assertEQ(maxMetaspaceSize, metaspaceSize);
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Asserts.assertEQ(mf.maxMetaspaceSize, maxMetaspaceSize);
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Asserts.assertEQ(mf.metaspaceSize, metaspaceSize);
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}
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private static void testMaxMetaspaceSizeLTMetaspaceSize(long maxMetaspaceSize, long metaspaceSize) throws Exception {
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MetaspaceFlags mf = runAndGetValue(maxMetaspaceSize, metaspaceSize);
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Asserts.assertEQ(mf.maxMetaspaceSize, maxMetaspaceSize);
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Asserts.assertEQ(mf.metaspaceSize, maxMetaspaceSize);
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}
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private static void testMaxMetaspaceSizeGTMetaspaceSize(long maxMetaspaceSize, long metaspaceSize) throws Exception {
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MetaspaceFlags mf = runAndGetValue(maxMetaspaceSize, metaspaceSize);
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Asserts.assertGT(maxMetaspaceSize, metaspaceSize);
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Asserts.assertGT(mf.maxMetaspaceSize, mf.metaspaceSize);
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Asserts.assertEQ(mf.maxMetaspaceSize, maxMetaspaceSize);
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Asserts.assertEQ(mf.metaspaceSize, metaspaceSize);
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}
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private static MetaspaceFlags runAndGetValue(long maxMetaspaceSize, long metaspaceSize) throws Exception {
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OutputAnalyzer output = run(maxMetaspaceSize, metaspaceSize);
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output.shouldNotMatch("Error occurred during initialization of VM\n.*");
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String stringMaxMetaspaceSize = output.firstMatch(".* MaxMetaspaceSize .* = (\\d+).*", 1);
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String stringMetaspaceSize = output.firstMatch(".* MetaspaceSize .* = (\\d+).*", 1);
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return new MetaspaceFlags(Long.parseLong(stringMaxMetaspaceSize),
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Long.parseLong(stringMetaspaceSize));
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}
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private static OutputAnalyzer run(long maxMetaspaceSize, long metaspaceSize) throws Exception {
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return ProcessTools.executeLimitedTestJava(
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"-XX:MaxMetaspaceSize=" + maxMetaspaceSize,
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"-XX:MetaspaceSize=" + metaspaceSize,
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"-XX:-UseLargePages", // Prevent us from using 2GB large pages on solaris + sparc.
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"-XX:+PrintFlagsFinal",
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"-version");
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}
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private static class MetaspaceFlags {
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public long maxMetaspaceSize;
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public long metaspaceSize;
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public MetaspaceFlags(long maxMetaspaceSize, long metaspaceSize) {
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this.maxMetaspaceSize = maxMetaspaceSize;
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this.metaspaceSize = metaspaceSize;
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}
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}
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}
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