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test/hotspot/jtreg/gc/shenandoah/options/TestSelectiveBarrierFlags.java

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rev 58558 : 8241605: Shenandoah: More aggressive reference discovery


  26  * @summary Test selective barrier enabling works, by aggressively compiling HelloWorld with combinations
  27  *          of barrier flags
  28  * @key gc
  29  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  30  * @library /test/lib
  31  * @run main/othervm TestSelectiveBarrierFlags -Xint
  32  * @run main/othervm TestSelectiveBarrierFlags -Xbatch -XX:CompileThreshold=100 -XX:TieredStopAtLevel=1
  33  * @run main/othervm TestSelectiveBarrierFlags -Xbatch -XX:CompileThreshold=100 -XX:-TieredCompilation -XX:+IgnoreUnrecognizedVMOptions -XX:+ShenandoahVerifyOptoBarriers
  34  */
  35 
  36 import java.util.*;
  37 import java.util.concurrent.*;
  38 
  39 import jdk.test.lib.process.ProcessTools;
  40 import jdk.test.lib.process.OutputAnalyzer;
  41 
  42 public class TestSelectiveBarrierFlags {
  43 
  44     public static void main(String[] args) throws Exception {
  45         String[][] opts = {
  46                 new String[] { "ShenandoahKeepAliveBarrier" },
  47                 new String[] { "ShenandoahLoadRefBarrier" },
  48                 new String[] { "ShenandoahSATBBarrier", "ShenandoahStoreValEnqueueBarrier" },
  49                 new String[] { "ShenandoahCASBarrier" },
  50                 new String[] { "ShenandoahCloneBarrier" },
  51         };
  52 
  53         int size = 1;
  54         for (String[] l : opts) {
  55             size *= (l.length + 1);
  56         }
  57 
  58         ExecutorService pool = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
  59 
  60         for (int c = 0; c < size; c++) {
  61             int t = c;
  62 
  63             List<String> conf = new ArrayList<>();
  64             conf.addAll(Arrays.asList(args));
  65             conf.add("-Xmx128m");
  66             conf.add("-XX:+UnlockDiagnosticVMOptions");




  26  * @summary Test selective barrier enabling works, by aggressively compiling HelloWorld with combinations
  27  *          of barrier flags
  28  * @key gc
  29  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  30  * @library /test/lib
  31  * @run main/othervm TestSelectiveBarrierFlags -Xint
  32  * @run main/othervm TestSelectiveBarrierFlags -Xbatch -XX:CompileThreshold=100 -XX:TieredStopAtLevel=1
  33  * @run main/othervm TestSelectiveBarrierFlags -Xbatch -XX:CompileThreshold=100 -XX:-TieredCompilation -XX:+IgnoreUnrecognizedVMOptions -XX:+ShenandoahVerifyOptoBarriers
  34  */
  35 
  36 import java.util.*;
  37 import java.util.concurrent.*;
  38 
  39 import jdk.test.lib.process.ProcessTools;
  40 import jdk.test.lib.process.OutputAnalyzer;
  41 
  42 public class TestSelectiveBarrierFlags {
  43 
  44     public static void main(String[] args) throws Exception {
  45         String[][] opts = {

  46                 new String[] { "ShenandoahLoadRefBarrier" },
  47                 new String[] { "ShenandoahSATBBarrier", "ShenandoahStoreValEnqueueBarrier" },
  48                 new String[] { "ShenandoahCASBarrier" },
  49                 new String[] { "ShenandoahCloneBarrier" },
  50         };
  51 
  52         int size = 1;
  53         for (String[] l : opts) {
  54             size *= (l.length + 1);
  55         }
  56 
  57         ExecutorService pool = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
  58 
  59         for (int c = 0; c < size; c++) {
  60             int t = c;
  61 
  62             List<String> conf = new ArrayList<>();
  63             conf.addAll(Arrays.asList(args));
  64             conf.add("-Xmx128m");
  65             conf.add("-XX:+UnlockDiagnosticVMOptions");


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