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 TestRemsetLogging.java 26 * @requires vm.gc.G1 27 * @bug 8013895 8129977 8145534 28 * @library /testlibrary /test/lib 29 * @modules java.base/jdk.internal.misc 30 * java.management/sun.management 31 * @build TestRemsetLoggingTools TestRemsetLogging 32 * @run main ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @summary Verify output of -Xlog:gc+remset*=trace 35 * @run main TestRemsetLogging 36 * 37 * Test the output of -Xlog:gc+remset*=trace in conjunction with G1SummarizeRSetStatsPeriod. 38 */ 39 40 public class TestRemsetLogging { 41 42 public static void main(String[] args) throws Exception { 43 String result; 44 45 // no remembered set summary output 46 result = TestRemsetLoggingTools.runTest(null, 0); 47 TestRemsetLoggingTools.expectRSetSummaries(result, 0, 0); 48 49 // no remembered set summary output 50 result = TestRemsetLoggingTools.runTest(null, 2); 51 TestRemsetLoggingTools.expectRSetSummaries(result, 0, 0); 52 53 // no remembered set summary output 54 result = TestRemsetLoggingTools.runTest(new String[] { "-XX:G1SummarizeRSetStatsPeriod=1" }, 3); 55 TestRemsetLoggingTools.expectRSetSummaries(result, 0, 0); 56 57 // single remembered set summary output at the end 58 result = TestRemsetLoggingTools.runTest(new String[] { "-Xlog:gc+remset*=trace" }, 0); 59 TestRemsetLoggingTools.expectRSetSummaries(result, 1, 0); 60 61 // single remembered set summary output at the end 62 result = TestRemsetLoggingTools.runTest(new String[] { "-Xlog:gc+remset*=trace" }, 2); 63 TestRemsetLoggingTools.expectRSetSummaries(result, 1, 0); 64 65 // single remembered set summary output 66 result = TestRemsetLoggingTools.runTest(new String[] { "-Xlog:gc+remset*=trace", "-XX:G1SummarizeRSetStatsPeriod=1" }, 0); 67 TestRemsetLoggingTools.expectRSetSummaries(result, 1, 0); 68 69 // two times remembered set summary output 70 result = TestRemsetLoggingTools.runTest(new String[] { "-Xlog:gc+remset*=trace", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1); 71 TestRemsetLoggingTools.expectRSetSummaries(result, 1, 2); 72 73 // four times remembered set summary output 74 result = TestRemsetLoggingTools.runTest(new String[] { "-Xlog:gc+remset*=trace", "-XX:G1SummarizeRSetStatsPeriod=1" }, 3); 75 TestRemsetLoggingTools.expectRSetSummaries(result, 1, 6); 76 77 // three times remembered set summary output 78 result = TestRemsetLoggingTools.runTest(new String[] { "-Xlog:gc+remset*=trace", "-XX:G1SummarizeRSetStatsPeriod=2" }, 3); 79 TestRemsetLoggingTools.expectRSetSummaries(result, 1, 4); 80 81 // single remembered set summary output 82 result = TestRemsetLoggingTools.runTest(new String[] { "-Xlog:gc+remset*=trace", "-XX:G1SummarizeRSetStatsPeriod=100" }, 3); 83 TestRemsetLoggingTools.expectRSetSummaries(result, 1, 2); 84 } 85 } 86