src/share/vm/runtime/arguments.cpp

@@ -1124,10 +1124,13 @@
   }
   if (!UseInterpreter) { // -Xcomp
     Tier3InvokeNotifyFreqLog = 0;
     Tier4InvocationThreshold = 0;
   }
+  if (FLAG_IS_DEFAULT(NmethodSweepFraction)) {
+    FLAG_SET_DEFAULT(NmethodSweepFraction, 1 + ReservedCodeCacheSize / (16 * M));
+  }
 }
 
 #if INCLUDE_ALL_GCS
 static void disable_adaptive_size_policy(const char* collector_name) {
   if (UseAdaptiveSizePolicy) {

@@ -2267,10 +2270,14 @@
     jio_fprintf(defaultStream::error_stream(),
                 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M,
                 (2*G)/M);
     status = false;
   }
+
+  status &= verify_interval(NmethodSweepFraction, 1, ReservedCodeCacheSize/K, "NmethodSweepFraction");
+  status &= verify_interval(NmethodSweepActivity, 0, 2000, "NmethodSweepActivity");
+
   return status;
 }
 
 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore,
   const char* option_type) {