36 import com.oracle.java.testlibrary.ProcessTools;
37 import com.oracle.java.testlibrary.OutputAnalyzer;
38
39 public class TestSummarizeRSetStatsThreads {
40
41 private static void runTest(int refinementThreads, int workerThreads) throws Exception {
42 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
43 "-XX:+UnlockDiagnosticVMOptions",
44 "-XX:+G1SummarizeRSetStats",
45 "-XX:G1ConcRefinementThreads=" + refinementThreads,
46 "-XX:ParallelGCThreads=" + workerThreads,
47 "-version");
48
49 OutputAnalyzer output = new OutputAnalyzer(pb.start());
50
51 // check output to contain the string "Concurrent RS threads times (s)" followed by
52 // the correct number of values in the next line.
53
54 // a zero in refinement thread numbers indicates that the value in ParallelGCThreads should be used.
55 // Additionally use at least one thread.
56 int expectedNumRefinementThreads = refinementThreads == 0 ? workerThreads : refinementThreads;
57 expectedNumRefinementThreads = Math.max(1, expectedNumRefinementThreads);
58 // create the pattern made up of n copies of a floating point number pattern
59 String numberPattern = String.format("%0" + expectedNumRefinementThreads + "d", 0)
60 .replace("0", "\\s+\\d+\\.\\d+");
61 String pattern = "Concurrent RS threads times \\(s\\)$" + numberPattern + "$";
62 Matcher m = Pattern.compile(pattern, Pattern.MULTILINE).matcher(output.getStdout());
63
64 if (!m.find()) {
65 throw new Exception("Could not find correct output for concurrent RS threads times in stdout," +
66 " should match the pattern \"" + pattern + "\", but stdout is \n" + output.getStdout());
67 }
68 output.shouldHaveExitValue(0);
69 }
70
71 public static void main(String[] args) throws Exception {
72 if (!TestSummarizeRSetStatsTools.testingG1GC()) {
73 return;
74 }
75 // different valid combinations of number of refinement and gc worker threads
76 runTest(0, 0);
77 runTest(0, 5);
78 runTest(5, 0);
79 runTest(10, 10);
80 runTest(1, 2);
81 runTest(4, 3);
82 }
83 }
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36 import com.oracle.java.testlibrary.ProcessTools;
37 import com.oracle.java.testlibrary.OutputAnalyzer;
38
39 public class TestSummarizeRSetStatsThreads {
40
41 private static void runTest(int refinementThreads, int workerThreads) throws Exception {
42 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UseG1GC",
43 "-XX:+UnlockDiagnosticVMOptions",
44 "-XX:+G1SummarizeRSetStats",
45 "-XX:G1ConcRefinementThreads=" + refinementThreads,
46 "-XX:ParallelGCThreads=" + workerThreads,
47 "-version");
48
49 OutputAnalyzer output = new OutputAnalyzer(pb.start());
50
51 // check output to contain the string "Concurrent RS threads times (s)" followed by
52 // the correct number of values in the next line.
53
54 // a zero in refinement thread numbers indicates that the value in ParallelGCThreads should be used.
55 // Additionally use at least one thread.
56 int expectedNumRefinementThreads = refinementThreads;
57
58 // create the pattern made up of n copies of a floating point number pattern
59 String numberPattern = String.format("%0" + expectedNumRefinementThreads + "d", 0)
60 .replace("0", "\\s+\\d+\\.\\d+");
61 String pattern = "Concurrent RS threads times \\(s\\)$" + numberPattern + "$";
62 Matcher m = Pattern.compile(pattern, Pattern.MULTILINE).matcher(output.getStdout());
63
64 if (!m.find()) {
65 throw new Exception("Could not find correct output for concurrent RS threads times in stdout," +
66 " should match the pattern \"" + pattern + "\", but stdout is \n" + output.getStdout());
67 }
68 output.shouldHaveExitValue(0);
69 }
70
71 public static void main(String[] args) throws Exception {
72 if (!TestSummarizeRSetStatsTools.testingG1GC()) {
73 return;
74 }
75 // different valid combinations of number of refinement and gc worker threads
76 runTest(1, 1);
77 runTest(1, 5);
78 runTest(5, 1);
79 runTest(10, 10);
80 runTest(1, 2);
81 runTest(4, 3);
82 }
83 }
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