1 /* 2 * Copyright (c) 2014, 2019, Oracle and/or its affiliates. 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.logging; 25 26 /* 27 * @test TestGCId 28 * @bug 8043607 29 * @summary Ensure that the GCId is logged 30 * @requires vm.gc=="null" 31 * @key gc 32 * @library /test/lib 33 * @modules java.base/jdk.internal.misc 34 * java.management 35 * @build sun.hotspot.WhiteBox 36 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission 37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI gc.logging.TestGCId 38 */ 39 40 import jdk.test.lib.process.OutputAnalyzer; 41 import jdk.test.lib.process.ProcessTools; 42 import sun.hotspot.gc.GC; 43 44 public class TestGCId { 45 public static void main(String[] args) throws Exception { 46 testGCId("UseParallelGC"); 47 testGCId("UseG1GC"); 48 testGCId("UseConcMarkSweepGC"); 49 testGCId("UseSerialGC"); 50 if (GC.Shenandoah.isSupported()) { 51 testGCId("UseShenandoahGC"); 52 } 53 } 54 55 private static void verifyContainsGCIDs(OutputAnalyzer output) { 56 output.shouldMatch("\\[.*\\]\\[.*\\]\\[.*\\] GC\\(0\\) "); 57 output.shouldMatch("\\[.*\\]\\[.*\\]\\[.*\\] GC\\(1\\) "); 58 output.shouldHaveExitValue(0); 59 } 60 61 private static void testGCId(String gcFlag) throws Exception { 62 ProcessBuilder pb_default = 63 ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions", "-XX:+" + gcFlag, "-Xlog:gc", "-Xmx10M", GCTest.class.getName()); 64 verifyContainsGCIDs(new OutputAnalyzer(pb_default.start())); 65 } 66 67 static class GCTest { 68 private static byte[] garbage; 69 public static void main(String [] args) { 70 System.out.println("Creating garbage"); 71 // create 128MB of garbage. This should result in at least one GC 72 for (int i = 0; i < 1024; i++) { 73 garbage = new byte[128 * 1024]; 74 } 75 // do a system gc to get one more gc 76 System.gc(); 77 System.out.println("Done"); 78 } 79 } 80 }