aoqi@0: /*
aoqi@0:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test TestPrintGCDetails
aoqi@0:  * @bug 8035406 8027295 8035398
aoqi@0:  * @summary Ensure that the PrintGCDetails output for a minor GC with G1
aoqi@0:  * includes the expected necessary messages.
aoqi@0:  * @key gc
aoqi@0:  * @library /testlibrary
aoqi@0:  */
aoqi@0: 
aoqi@0: import com.oracle.java.testlibrary.ProcessTools;
aoqi@0: import com.oracle.java.testlibrary.OutputAnalyzer;
aoqi@0: 
aoqi@0: public class TestGCLogMessages {
aoqi@0:   public static void main(String[] args) throws Exception {
aoqi@0:     testNormalLogs();
aoqi@0:     testWithToSpaceExhaustionLogs();
aoqi@0:   }
aoqi@0: 
aoqi@0:   private static void testNormalLogs() throws Exception {
aoqi@0: 
aoqi@0:     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
aoqi@0:                                                               "-Xmx10M",
aoqi@0:                                                               GCTest.class.getName());
aoqi@0: 
aoqi@0:     OutputAnalyzer output = new OutputAnalyzer(pb.start());
aoqi@0: 
aoqi@0:     output.shouldNotContain("[Redirty Cards");
aoqi@0:     output.shouldNotContain("[Code Root Purge");
aoqi@0:     output.shouldNotContain("[String Dedup Fixup");
aoqi@0:     output.shouldNotContain("[Young Free CSet");
aoqi@0:     output.shouldNotContain("[Non-Young Free CSet");
aoqi@0:     output.shouldHaveExitValue(0);
aoqi@0: 
aoqi@0:     pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
aoqi@0:                                                "-XX:+UseStringDeduplication",
aoqi@0:                                                "-Xmx10M",
aoqi@0:                                                "-XX:+PrintGCDetails",
aoqi@0:                                                GCTest.class.getName());
aoqi@0: 
aoqi@0:     output = new OutputAnalyzer(pb.start());
aoqi@0: 
aoqi@0:     output.shouldContain("[Redirty Cards");
aoqi@0:     output.shouldContain("[Code Root Purge");
aoqi@0:     output.shouldContain("[String Dedup Fixup");
aoqi@0:     output.shouldNotContain("[Young Free CSet");
aoqi@0:     output.shouldNotContain("[Non-Young Free CSet");
aoqi@0:     output.shouldHaveExitValue(0);
aoqi@0: 
aoqi@0:     pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
aoqi@0:                                                "-XX:+UseStringDeduplication",
aoqi@0:                                                "-Xmx10M",
aoqi@0:                                                "-XX:+PrintGCDetails",
aoqi@0:                                                "-XX:+UnlockExperimentalVMOptions",
aoqi@0:                                                "-XX:G1LogLevel=finest",
aoqi@0:                                                GCTest.class.getName());
aoqi@0: 
aoqi@0:     output = new OutputAnalyzer(pb.start());
aoqi@0: 
aoqi@0:     output.shouldContain("[Redirty Cards");
aoqi@0:     output.shouldContain("[Code Root Purge");
aoqi@0:     output.shouldContain("[String Dedup Fixup");
aoqi@0:     output.shouldContain("[Young Free CSet");
aoqi@0:     output.shouldContain("[Non-Young Free CSet");
aoqi@0: 
aoqi@0:     // also check evacuation failure messages once
aoqi@0:     output.shouldNotContain("[Evacuation Failure");
aoqi@0:     output.shouldNotContain("[Recalculate Used");
aoqi@0:     output.shouldNotContain("[Remove Self Forwards");
aoqi@0:     output.shouldNotContain("[Restore RemSet");
aoqi@0:     output.shouldHaveExitValue(0);
aoqi@0:   }
aoqi@0: 
aoqi@0:   private static void testWithToSpaceExhaustionLogs() throws Exception {
aoqi@0:     ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
aoqi@0:                                                "-Xmx10M",
aoqi@0:                                                "-Xmn5M",
aoqi@0:                                                "-XX:+PrintGCDetails",
aoqi@0:                                                GCTestWithToSpaceExhaustion.class.getName());
aoqi@0: 
aoqi@0:     OutputAnalyzer output = new OutputAnalyzer(pb.start());
aoqi@0:     output.shouldContain("[Evacuation Failure");
aoqi@0:     output.shouldNotContain("[Recalculate Used");
aoqi@0:     output.shouldNotContain("[Remove Self Forwards");
aoqi@0:     output.shouldNotContain("[Restore RemSet");
aoqi@0:     output.shouldHaveExitValue(0);
aoqi@0: 
aoqi@0:     pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
aoqi@0:                                                "-Xmx10M",
aoqi@0:                                                "-Xmn5M",
aoqi@0:                                                "-XX:+PrintGCDetails",
aoqi@0:                                                "-XX:+UnlockExperimentalVMOptions",
aoqi@0:                                                "-XX:G1LogLevel=finest",
aoqi@0:                                                GCTestWithToSpaceExhaustion.class.getName());
aoqi@0: 
aoqi@0:     output = new OutputAnalyzer(pb.start());
aoqi@0:     output.shouldContain("[Evacuation Failure");
aoqi@0:     output.shouldContain("[Recalculate Used");
aoqi@0:     output.shouldContain("[Remove Self Forwards");
aoqi@0:     output.shouldContain("[Restore RemSet");
aoqi@0:     output.shouldHaveExitValue(0);
aoqi@0:   }
aoqi@0: 
aoqi@0:   static class GCTest {
aoqi@0:     private static byte[] garbage;
aoqi@0:     public static void main(String [] args) {
aoqi@0:       System.out.println("Creating garbage");
aoqi@0:       // create 128MB of garbage. This should result in at least one GC
aoqi@0:       for (int i = 0; i < 1024; i++) {
aoqi@0:         garbage = new byte[128 * 1024];
aoqi@0:       }
aoqi@0:       System.out.println("Done");
aoqi@0:     }
aoqi@0:   }
aoqi@0: 
aoqi@0:   static class GCTestWithToSpaceExhaustion {
aoqi@0:     private static byte[] garbage;
aoqi@0:     private static byte[] largeObject;
aoqi@0:     public static void main(String [] args) {
aoqi@0:       largeObject = new byte[5*1024*1024];
aoqi@0:       System.out.println("Creating garbage");
aoqi@0:       // create 128MB of garbage. This should result in at least one GC,
aoqi@0:       // some of them with to-space exhaustion.
aoqi@0:       for (int i = 0; i < 1024; i++) {
aoqi@0:         garbage = new byte[128 * 1024];
aoqi@0:       }
aoqi@0:       System.out.println("Done");
aoqi@0:     }
aoqi@0:   }
aoqi@0: }