28  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @run driver TestThreadCounts
  33  */
  34 
  35 import jdk.test.lib.process.ProcessTools;
  36 import jdk.test.lib.process.OutputAnalyzer;
  37 
  38 public class TestThreadCounts {
  39     public static void main(String[] args) throws Exception {
  40         for (int conc = 0; conc < 16; conc++) {
  41             for (int par = 0; par < 16; par++) {
  42                 testWith(conc, par);
  43             }
  44         }
  45     }
  46 
  47     private static void testWith(int conc, int par) throws Exception {
  48         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:+UnlockDiagnosticVMOptions",


  49                 "-XX:+UnlockExperimentalVMOptions",
  50                 "-XX:+UseShenandoahGC",
  51                 "-XX:ConcGCThreads=" + conc,
  52                 "-XX:ParallelGCThreads=" + par,
  53                 "-version");
  54         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  55 
  56         if (conc == 0) {
  57             output.shouldContain("Shenandoah expects ConcGCThreads > 0");
  58             output.shouldHaveExitValue(1);
  59         } else if (par == 0) {
  60             output.shouldContain("Shenandoah expects ParallelGCThreads > 0");
  61             output.shouldHaveExitValue(1);
  62         } else if (conc > par) {
  63             output.shouldContain("Shenandoah expects ConcGCThreads <= ParallelGCThreads");
  64             output.shouldHaveExitValue(1);
  65         } else {
  66             output.shouldNotContain("Shenandoah expects ConcGCThreads <= ParallelGCThreads");
  67             output.shouldHaveExitValue(0);
  68         }

  28  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @run driver TestThreadCounts
  33  */
  34 
  35 import jdk.test.lib.process.ProcessTools;
  36 import jdk.test.lib.process.OutputAnalyzer;
  37 
  38 public class TestThreadCounts {
  39     public static void main(String[] args) throws Exception {
  40         for (int conc = 0; conc < 16; conc++) {
  41             for (int par = 0; par < 16; par++) {
  42                 testWith(conc, par);
  43             }
  44         }
  45     }
  46 
  47     private static void testWith(int conc, int par) throws Exception {
  48         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  49                 "-Xmx128m",
  50                 "-XX:+UnlockDiagnosticVMOptions",
  51                 "-XX:+UnlockExperimentalVMOptions",
  52                 "-XX:+UseShenandoahGC",
  53                 "-XX:ConcGCThreads=" + conc,
  54                 "-XX:ParallelGCThreads=" + par,
  55                 "-version");
  56         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  57 
  58         if (conc == 0) {
  59             output.shouldContain("Shenandoah expects ConcGCThreads > 0");
  60             output.shouldHaveExitValue(1);
  61         } else if (par == 0) {
  62             output.shouldContain("Shenandoah expects ParallelGCThreads > 0");
  63             output.shouldHaveExitValue(1);
  64         } else if (conc > par) {
  65             output.shouldContain("Shenandoah expects ConcGCThreads <= ParallelGCThreads");
  66             output.shouldHaveExitValue(1);
  67         } else {
  68             output.shouldNotContain("Shenandoah expects ConcGCThreads <= ParallelGCThreads");
  69             output.shouldHaveExitValue(0);
  70         }