1 /* 2 * Copyright (c) 2013, 2016, 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 TestPrintRegionRememberedSetInfo 26 * @key gc 27 * @bug 8014240 28 * @summary Test output of G1PrintRegionRememberedSetInfo 29 * @library /test/lib 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 * @run main TestPrintRegionRememberedSetInfo 33 * @author thomas.schatzl@oracle.com 34 */ 35 36 import jdk.test.lib.process.OutputAnalyzer; 37 import jdk.test.lib.process.ProcessTools; 38 import java.lang.Thread; 39 import java.util.ArrayList; 40 import java.util.Arrays; 41 42 class RunAndWaitForMarking { 43 public static void main(String[] args) { 44 System.gc(); 45 try { 46 Thread.sleep(200); 47 } catch (InterruptedException e) { 48 } 49 } 50 } 51 52 public class TestPrintRegionRememberedSetInfo { 53 54 public static String runTest(String arg) throws Exception { 55 ArrayList<String> finalargs = new ArrayList<String>(); 56 String[] defaultArgs = new String[] { 57 "-XX:+UseG1GC", 58 "-Xmx10m", 59 "-XX:+ExplicitGCInvokesConcurrent", 60 "-XX:+UnlockDiagnosticVMOptions", 61 "-XX:G1HeapRegionSize=1M", 62 "-XX:InitiatingHeapOccupancyPercent=0", 63 }; 64 65 finalargs.addAll(Arrays.asList(defaultArgs)); 66 finalargs.add(arg); 67 68 finalargs.add(RunAndWaitForMarking.class.getName()); 69 70 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 71 finalargs.toArray(new String[0])); 72 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 73 output.shouldHaveExitValue(0); 74 75 String result = output.getStdout(); 76 return result; 77 } 78 79 public static void main(String[] args) throws Exception { 80 String result; 81 82 result = runTest("-Xlog:gc+liveness=trace"); 83 // check that we got region statistics output 84 if (result.indexOf("PHASE") == -1) { 85 throw new RuntimeException("Unexpected output from -XX:+PrintRegionLivenessInfo found."); 86 } 87 88 result = runTest("-Xlog:gc+liveness"); 89 if (result.indexOf("remset") != -1) { 90 throw new RuntimeException("Should find remembered set information in output."); 91 } 92 } 93 } 94