1 /*
   2  * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 /*
  25  * @test TestVerboseGC
  26  * @summary Test that Shenandoah reacts properly on -verbose:gc
  27  * @key gc
  28  * @library /testlibrary
  29  *
  30  * @run driver TestVerboseGC
  31  */
  32 
  33 import com.oracle.java.testlibrary.*;
  34 
  35 public class TestVerboseGC {
  36     static volatile Object sink;
  37 
  38     public static void main(String[] args) throws Exception {
  39         if (args.length > 0) {
  40             for (int c = 0; c < 1_000; c++) {
  41                 sink = new byte[1_000_000];
  42                 Thread.sleep(1);
  43             }
  44             return;
  45         }
  46 
  47         {
  48             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  49                                                                       "-XX:+UseShenandoahGC",
  50                                                                       "-Xmx128m",
  51                                                                       TestVerboseGC.class.getName(),
  52                                                                       "test");
  53             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  54             output.shouldNotContain("Concurrent marking");
  55             output.shouldNotContain("Collectable Garbage");
  56             output.shouldNotContain("GC STATISTICS");
  57             output.shouldHaveExitValue(0);
  58         }
  59 
  60         {
  61             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  62                                                                       "-XX:+UseShenandoahGC",
  63                                                                       "-Xmx128m",
  64                                                                       "-verbose:gc",
  65                                                                       TestVerboseGC.class.getName(),
  66                                                                       "test");
  67             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  68             output.shouldContain("Concurrent marking");
  69             output.shouldNotContain("Collectable Garbage");
  70             output.shouldContain("GC STATISTICS");
  71             output.shouldHaveExitValue(0);
  72         }
  73 
  74         {
  75             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  76                                                                       "-XX:+UseShenandoahGC",
  77                                                                       "-Xmx128m",
  78                                                                       "-XX:+PrintGC",
  79                                                                       TestVerboseGC.class.getName(),
  80                                                                       "test");
  81             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  82             output.shouldContain("Concurrent marking");
  83             output.shouldNotContain("Collectable Garbage");
  84             output.shouldContain("GC STATISTICS");
  85             output.shouldHaveExitValue(0);
  86         }
  87 
  88         {
  89             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockExperimentalVMOptions",
  90                                                                       "-XX:+UseShenandoahGC",
  91                                                                       "-Xmx128m",
  92                                                                       "-XX:+PrintGCDetails",
  93                                                                       TestVerboseGC.class.getName(),
  94                                                                       "test");
  95             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  96             output.shouldContain("Concurrent marking");
  97             output.shouldContain("Collectable Garbage");
  98             output.shouldContain("GC STATISTICS");
  99             output.shouldHaveExitValue(0);
 100         }
 101     }
 102 }