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 TestSummarizeRSetStats2.java 26 * @bug 8014078 27 * @library /testlibrary 28 * @build TestSummarizeRSetStats2 TestSummarizeRSetStatsTools 29 * @summary Verify output of -XX:+G1SummarizeRSetStats in regards to per-region type output 30 * @run main TestSummarizeRSetStats2 31 */ 32 33 import com.oracle.java.testlibrary.*; 34 import java.lang.Thread; 35 import java.util.ArrayList; 36 import java.util.Arrays; 37 38 public class TestSummarizeRSetStats2 { 39 40 private static void checkCounts(int expected, int actual, String which) throws Exception { 41 if (expected != actual) { 42 throw new Exception("RSet summaries mention " + which + " regions an incorrect number of times. Expected " + expected + ", got " + actual); 43 } 44 } 45 46 private static void expectStatistics(String result, int expectedCumulative, int expectedPeriodic) throws Exception { 47 TestSummarizeRSetStatsTools.expectStatistics(result, expectedCumulative, expectedPeriodic); 48 int actualYoung = result.split("Young regions").length - 1; 49 int actualHumonguous = result.split("Humonguous regions").length - 1; 50 int actualFree = result.split("Free regions").length - 1; 51 int actualOther = result.split("Other regions").length - 1; 52 53 // the strings we check for above are printed twice per summary 54 int expectedPerRegionTypeInfo = (expectedCumulative + expectedPeriodic) * 2; 55 56 checkCounts(expectedPerRegionTypeInfo, actualYoung, "Young"); 57 checkCounts(expectedPerRegionTypeInfo, actualHumonguous, "Humonguous"); 58 checkCounts(expectedPerRegionTypeInfo, actualFree, "Free"); 59 checkCounts(expectedPerRegionTypeInfo, actualOther, "Other"); 60 } 61 62 public static void main(String[] args) throws Exception { 63 String result; 64 65 // single RSet statistics output at the end 66 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 0); 67 expectStatistics(result, 1, 0); 68 69 // two times RSet statistics output 70 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1); 71 expectStatistics(result, 1, 1); 72 73 // four times RSet statistics output 74 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1", "-XX:G1SummarizeRSetStatsTime=1" }, 3); 75 expectStatistics(result, 1, 3); 76 77 // four times RSet statistics output 78 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1", "-XX:G1SummarizeRSetStatsTime=2" }, 3); 79 expectStatistics(result, 1, 3); 80 81 // seven times RSet statistics output (before, after gc and cumulative) 82 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1", "-XX:G1SummarizeRSetStatsTime=3" }, 3); 83 expectStatistics(result, 1, 6); 84 } 85 } 86