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 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 import com.oracle.java.testlibrary.*; 36 import java.lang.Thread; 37 import java.util.ArrayList; 38 import java.util.Arrays; 39 40 class RunSystemGCs { 41 // 4M size, both are directly allocated into the old gen 42 static Object[] largeObject1 = new Object[1024 * 1024]; 43 static Object[] largeObject2 = new Object[1024 * 1024]; 44 45 static int[] temp; 46 47 public static void main(String[] args) { 48 // create some cross-references between these objects 49 for (int i = 0; i < largeObject1.length; i++) { 50 largeObject1[i] = largeObject2; 51 } 52 53 for (int i = 0; i < largeObject2.length; i++) { 54 largeObject2[i] = largeObject1; 55 } 56 57 int numGCs = Integer.parseInt(args[0]); 58 59 if (numGCs > 0) { 60 // try to force a minor collection: the young gen is 4M, the 61 // amount of data allocated below is roughly that (4*1024*1024 + 62 // some header data) 63 for (int i = 0; i < 1024 ; i++) { 64 temp = new int[1024]; 65 } 66 } 67 68 for (int i = 0; i < numGCs - 1; i++) { 69 System.gc(); 70 } 71 } 72 } 73 74 public class TestSummarizeRSetStats { 75 76 public static String runTest(String[] additionalArgs, int numGCs) throws Exception { 77 ArrayList<String> finalargs = new ArrayList<String>(); 78 String[] defaultArgs = new String[] { 79 "-XX:+UseG1GC", 80 "-Xmn4m", 81 "-Xmx20m", 82 "-XX:InitiatingHeapOccupancyPercent=100", // we don't want the additional GCs due to initial marking 83 "-XX:+PrintGC", 84 "-XX:+UnlockDiagnosticVMOptions", 85 "-XX:G1HeapRegionSize=1M", 86 }; 87 88 finalargs.addAll(Arrays.asList(defaultArgs)); 89 90 if (additionalArgs != null) { 91 finalargs.addAll(Arrays.asList(additionalArgs)); 92 } 93 94 finalargs.add(RunSystemGCs.class.getName()); 95 finalargs.add(String.valueOf(numGCs)); 96 97 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 98 finalargs.toArray(new String[0])); 99 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 100 101 output.shouldHaveExitValue(0); 102 103 String result = output.getStdout(); 104 return result; 105 } 106 107 private static void expectStatistics(String result, int expectedCumulative, int expectedPeriodic) throws Exception { 108 int actualTotal = result.split("Concurrent RS processed").length - 1; 109 int actualCumulative = result.split("Cumulative RS summary").length - 1; 110 111 if (expectedCumulative != actualCumulative) { 112 throw new Exception("Incorrect amount of RSet summaries at the end. Expected " + expectedCumulative + ", got " + actualCumulative); 113 } 114 115 if (expectedPeriodic != (actualTotal - actualCumulative)) { 116 throw new Exception("Incorrect amount of per-period RSet summaries at the end. Expected " + expectedPeriodic + ", got " + (actualTotal - actualCumulative)); 117 } 118 } 119 120 public static void main(String[] args) throws Exception { 121 String result; 122 123 // no RSet statistics output 124 result = runTest(null, 0); 125 expectStatistics(result, 0, 0); 126 127 // no RSet statistics output 128 result = runTest(null, 2); 129 expectStatistics(result, 0, 0); 130 131 // no RSet statistics output 132 result = runTest(new String[] { "-XX:G1SummarizeRSetStatsPeriod=1" }, 3); 133 expectStatistics(result, 0, 0); 134 135 // single RSet statistics output at the end 136 result = runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 0); 137 expectStatistics(result, 1, 0); 138 139 // single RSet statistics output at the end 140 result = runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 2); 141 expectStatistics(result, 1, 0); 142 143 // single RSet statistics output 144 result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 0); 145 expectStatistics(result, 1, 0); 146 147 // two times RSet statistics output 148 result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1); 149 expectStatistics(result, 1, 1); 150 151 // four times RSet statistics output 152 result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 3); 153 expectStatistics(result, 1, 3); 154 155 // three times RSet statistics output 156 result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=2" }, 3); 157 expectStatistics(result, 1, 2); 158 159 // single RSet statistics output 160 result = runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=100" }, 3); 161 expectStatistics(result, 1, 1); 162 } 163 } 164 | 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 // no remembered set summary output 41 result = TestSummarizeRSetStatsTools.runTest(null, 0); 42 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 0, 0); 43 44 // no remembered set summary output 45 result = TestSummarizeRSetStatsTools.runTest(null, 2); 46 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 0, 0); 47 48 // no remembered set summary output 49 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:G1SummarizeRSetStatsPeriod=1" }, 3); 50 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 0, 0); 51 52 // single remembered set summary output at the end 53 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 0); 54 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 0); 55 56 // single remembered set summary output at the end 57 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats" }, 2); 58 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 0); 59 60 // single remembered set summary output 61 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 0); 62 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 0); 63 64 // two times remembered set summary output 65 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 1); 66 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 2); 67 68 // four times remembered set summary output 69 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=1" }, 3); 70 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 6); 71 72 // three times remembered set summary output 73 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=2" }, 3); 74 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 4); 75 76 // single remembered set summary output 77 result = TestSummarizeRSetStatsTools.runTest(new String[] { "-XX:+G1SummarizeRSetStats", "-XX:G1SummarizeRSetStatsPeriod=100" }, 3); 78 TestSummarizeRSetStatsTools.expectRSetSummaries(result, 1, 2); 79 } 80 } 81 |