1 /*
   2  * Copyright (c) 2013, 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 TestSummarizeRSetStats.java
  26  * @bug 8013895
  27  * @library /testlibrary
  28  * @build TestSummarizeRSetStatsTools TestSummarizeRSetStats
  29  * @summary Verify output of -XX:+G1SummarizeRSetStats
  30  * @run main TestSummarizeRSetStats
  31  *
  32  * Test the output of G1SummarizeRSetStats in conjunction with G1SummarizeRSetStatsPeriod.
  33  */
  34 
  35 public class TestSummarizeRSetStats {
  36 
  37     public static void main(String[] args) throws Exception {
  38         String result;
  39 
  40         if (!TestSummarizeRSetStatsTools.testingG1GC()) {
  41             return;
  42         }
  43 
  44         // no remembered set summary output
  45         result = TestSummarizeRSetStatsTools.runTest(null, 0);
  46         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 0, 0);
  47 
  48         // no remembered set summary output
  49         result = TestSummarizeRSetStatsTools.runTest(null, 2);
  50         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 0, 0);
  51 
  52         // no remembered set summary output
  53         result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:G1SummarizeRSetStatsPeriod=1" }, 3);
  54         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 0, 0);
  55 
  56         // single remembered set summary output at the end
  57         result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 0);
  58         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 0);
  59 
  60         // single remembered set summary output at the end
  61         result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 2);
  62         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 0);
  63 
  64         // single remembered set summary output
  65         result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 0);
  66         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 0);
  67 
  68         // two times remembered set summary output
  69         result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1);
  70         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 2);
  71 
  72         // four times remembered set summary output
  73         result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 3);
  74         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 6);
  75 
  76         // three times remembered set summary output
  77         result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=2" }, 3);
  78         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 4);
  79 
  80         // single remembered set summary output
  81         result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=100" }, 3);
  82         TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 2);
  83     }
  84 }
  85