1 /* 2 * Copyright (c) 2014, 2018, 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 /* 25 * @test TestGCId 26 * @bug 8043607 27 * @summary Ensure that the GCId is logged 28 * @requires vm.gc=="null" 29 * @key gc 30 * @library /test/lib 31 * @modules java.base/jdk.internal.misc 32 * java.management 33 * @build sun.hotspot.WhiteBox 34 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission 35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI TestGCId 36 */ 37 38 import jdk.test.lib.process.OutputAnalyzer; 39 import jdk.test.lib.process.ProcessTools; 40 import sun.hotspot.gc.GC; 41 42 public class TestGCId { 43 public static void main(String[] args) throws Exception { 44 testGCId("UseParallelGC"); 45 testGCId("UseG1GC"); 46 testGCId("UseConcMarkSweepGC"); 47 testGCId("UseSerialGC"); 48 if (GC.Shenandoah.isSupported()) { 49 testGCId("UseShenandoahGC"); 50 } 51 } 52 53 private static void verifyContainsGCIDs(OutputAnalyzer output) { 54 output.shouldMatch("\\[.*\\]\\[.*\\]\\[.*\\] GC\\(0\\) "); 55 output.shouldMatch("\\[.*\\]\\[.*\\]\\[.*\\] GC\\(1\\) "); 56 output.shouldHaveExitValue(0); 57 } 58 59 private static void testGCId(String gcFlag) throws Exception { 60 ProcessBuilder pb_default = 61 ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions", "-XX:+" + gcFlag, "-Xlog:gc", "-Xmx10M", GCTest.class.getName()); 62 verifyContainsGCIDs(new OutputAnalyzer(pb_default.start())); 63 } 64 65 static class GCTest { 66 private static byte[] garbage; 67 public static void main(String [] args) { 68 System.out.println("Creating garbage"); 69 // create 128MB of garbage. This should result in at least one GC 70 for (int i = 0; i < 1024; i++) { 71 garbage = new byte[128 * 1024]; 72 } 73 // do a system gc to get one more gc 74 System.gc(); 75 System.out.println("Done"); 76 } 77 } 78 }