test/java/lang/invoke/LFCaching/LambdaFormTestCase.java

*** 20,29 ****
--- 20,31 ----
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  import com.oracle.testlibrary.jsr292.Helper;
+ import com.sun.management.HotSpotDiagnosticMXBean;
+ import java.lang.management.ManagementFactory;
  import java.lang.reflect.Method;
  import java.util.Collection;
  import java.util.function.Function;
  
  /**
*** 35,44 ****
--- 37,48 ----
   */
  public abstract class LambdaFormTestCase {
  
      private final static String METHOD_HANDLE_CLASS_NAME = "java.lang.invoke.MethodHandle";
      private final static String INTERNAL_FORM_METHOD_NAME = "internalForm";
+     private static final double ITERATIONS_TO_CODE_CACHE_SIZE_RATIO
+             = 45 / (128.0 * 1024 * 1024);
  
      /**
       * Reflection link to {@code j.l.i.MethodHandle.internalForm} method. It is
       * used to get a lambda form from a method handle.
       */
*** 85,95 ****
       */
      public static void runTests(Function<TestMethods, LambdaFormTestCase> ctor, Collection<TestMethods> testMethods) {
          boolean passed = true;
          int testCounter = 0;
          int failCounter = 0;
!         long iterations = Math.max(1, Helper.TEST_LIMIT / testMethods.size());
          for (long i = 0; i < iterations; i++) {
              System.err.println(String.format("Iteration %d:", i));
              for (TestMethods testMethod : testMethods) {
                  LambdaFormTestCase testCase = ctor.apply(testMethod);
                  try {
--- 89,116 ----
       */
      public static void runTests(Function<TestMethods, LambdaFormTestCase> ctor, Collection<TestMethods> testMethods) {
          boolean passed = true;
          int testCounter = 0;
          int failCounter = 0;
!         long testCaseNum = testMethods.size();
!         long iterations = Math.max(1, Helper.TEST_LIMIT / testCaseNum);
!         System.out.printf("Number of iterations according to -DtestLimit is %d (%d cases)%n",
!                 iterations, iterations * testCaseNum);
!         HotSpotDiagnosticMXBean hsDiagBean = ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
!         long codeCacheSize = Long.parseLong(
!                 hsDiagBean.getVMOption("ReservedCodeCacheSize").getValue());
!         System.out.printf("Code Cache Size is %d bytes%n", codeCacheSize);
!         long iterationsByCodeCacheSize = (long) (codeCacheSize
!                 * ITERATIONS_TO_CODE_CACHE_SIZE_RATIO);
!         System.out.printf("Number of iterations limited by code cache size is %d (%d cases)%n",
!                 iterationsByCodeCacheSize, iterationsByCodeCacheSize * testCaseNum);
!         if (iterations > iterationsByCodeCacheSize) {
!             iterations = iterationsByCodeCacheSize;
!         }
!         System.out.printf("Number of iterations is set to %d (%d cases)%n",
!                 iterations, iterations * testCaseNum);
!         System.out.flush();
          for (long i = 0; i < iterations; i++) {
              System.err.println(String.format("Iteration %d:", i));
              for (TestMethods testMethod : testMethods) {
                  LambdaFormTestCase testCase = ctor.apply(testMethod);
                  try {