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 * @requires vm.gc.G1 30 * @library /test/lib 31 * @modules java.base/jdk.internal.misc 32 * java.management 33 * @run main TestPrintRegionRememberedSetInfo 34 * @author thomas.schatzl@oracle.com 35 */ 36 37 import jdk.test.lib.process.OutputAnalyzer; 38 import jdk.test.lib.process.ProcessTools; 39 import java.lang.Thread; 40 import java.util.ArrayList; 41 import java.util.Arrays; 42 43 class RunAndWaitForMarking { 44 public static void main(String[] args) { 45 System.gc(); 46 try { 47 Thread.sleep(200); 48 } catch (InterruptedException e) { 49 } 50 } 51 } 52 53 public class TestPrintRegionRememberedSetInfo { 54 55 public static String runTest(String arg) throws Exception { 56 ArrayList<String> finalargs = new ArrayList<String>(); 57 String[] defaultArgs = new String[] { 58 "-XX:+UseG1GC", 59 "-Xmx10m", 60 "-XX:+ExplicitGCInvokesConcurrent", 61 "-XX:+UnlockDiagnosticVMOptions", 62 "-XX:G1HeapRegionSize=1M", 63 "-XX:InitiatingHeapOccupancyPercent=0", 64 }; 65 66 finalargs.addAll(Arrays.asList(defaultArgs)); 67 finalargs.add(arg); 68 69 finalargs.add(RunAndWaitForMarking.class.getName()); 70 71 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 72 finalargs.toArray(new String[0])); 73 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 74 output.shouldHaveExitValue(0); 75 76 String result = output.getStdout(); 77 return result; 78 } 79 80 public static void main(String[] args) throws Exception { 81 String result; 82 83 result = runTest("-Xlog:gc+liveness=trace"); 84 // check that we got region statistics output 85 if (result.indexOf("PHASE") == -1) { 86 throw new RuntimeException("Unexpected output from -XX:+PrintRegionLivenessInfo found."); 87 } 88 89 result = runTest("-Xlog:gc+liveness"); 90 if (result.indexOf("remset") != -1) { 91 throw new RuntimeException("Should find remembered set information in output."); 92 } 93 } 94 } 95