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src/hotspot/share/runtime/arguments.cpp

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@@ -24,10 +24,11 @@
  
  #include "precompiled.hpp"
  #include "cds/cds_globals.hpp"
  #include "cds/cdsConfig.hpp"
  #include "cds/filemap.hpp"
+ #include "cds/heapShared.hpp"
  #include "classfile/classLoader.hpp"
  #include "classfile/javaAssertions.hpp"
  #include "classfile/moduleEntry.hpp"
  #include "classfile/stringTable.hpp"
  #include "classfile/symbolTable.hpp"

@@ -1794,11 +1795,16 @@
    status = CompilerConfig::check_args_consistency(status);
  #if INCLUDE_JVMCI
    if (status && EnableJVMCI) {
      PropertyList_unique_add(&_system_properties, "jdk.internal.vm.ci.enabled", "true",
          AddProperty, UnwriteableProperty, InternalProperty);
-     if (ClassLoader::is_module_observable("jdk.internal.vm.ci")) {
+     /*
+      * Ioi - 2023/05/19. There's no need for this with my patch-jdk.sh script, which adds
+      * jdk.internal.vm.ci as one of the default modules. Using -Djdk.module.addmods will
+      * cause the full module graph to be disabled and slow down performance.
+      */
+     if (!TempDisableAddJVMCIModule && ClassLoader::is_module_observable("jdk.internal.vm.ci")) {
        if (!create_numbered_module_property("jdk.module.addmods", "jdk.internal.vm.ci", addmods_count++)) {
          return false;
        }
      }
    }

@@ -3727,10 +3733,35 @@
      }
      FLAG_SET_DEFAULT(UseVectorStubs, false);
    }
  #endif // COMPILER2_OR_JVMCI
  
+   if (log_is_enabled(Info, init)) {
+     if (FLAG_IS_DEFAULT(ProfileVMLocks)) {
+       FLAG_SET_DEFAULT(ProfileVMLocks, true);
+     }
+     // Don't turn on ProfileVMCalls and ProfileRuntimeCalls by default.
+   } else {
+     if (!FLAG_IS_DEFAULT(ProfileVMLocks) && ProfileVMLocks) {
+       warning("Disabling ProfileVMLocks since logging is turned off.");
+       FLAG_SET_DEFAULT(ProfileVMLocks, false);
+     }
+     if (!FLAG_IS_DEFAULT(ProfileVMCalls) && ProfileVMCalls) {
+       warning("Disabling ProfileVMCalls since logging is turned off.");
+       FLAG_SET_DEFAULT(ProfileVMCalls, false);
+     }
+     if (!FLAG_IS_DEFAULT(ProfileRuntimeCalls) && ProfileRuntimeCalls) {
+       warning("Disabling ProfileRuntimeCalls since logging is turned off.");
+       FLAG_SET_DEFAULT(ProfileRuntimeCalls, false);
+     }
+   }
+   if (FLAG_IS_DEFAULT(PerfDataMemorySize)) {
+     if (ProfileVMLocks || ProfileVMCalls || ProfileRuntimeCalls) {
+       FLAG_SET_DEFAULT(PerfDataMemorySize, 128*K); // reserve more space for extra perf counters
+     }
+   }
+ 
    if (FLAG_IS_CMDLINE(DiagnoseSyncOnValueBasedClasses)) {
      if (DiagnoseSyncOnValueBasedClasses == ObjectSynchronizer::LOG_WARNING && !log_is_enabled(Info, valuebasedclasses)) {
        LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(valuebasedclasses));
      }
    }
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