src/hotspot/share/gc/shenandoah/heuristics/shenandoahTraversalHeuristics.cpp

*** 39,48 ****
--- 39,55 ----
    FLAG_SET_DEFAULT(ShenandoahSATBBarrier,            false);
    FLAG_SET_DEFAULT(ShenandoahStoreValEnqueueBarrier, true);
    FLAG_SET_DEFAULT(ShenandoahKeepAliveBarrier,       false);
    FLAG_SET_DEFAULT(ShenandoahAllowMixedAllocs,       false);
  
+   SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahRefProcFrequency, 1);
+ 
+   // Adjust class unloading settings only if globally enabled.
+   if (ClassUnloadingWithConcurrentMark) {
+     SHENANDOAH_ERGO_OVERRIDE_DEFAULT(ShenandoahUnloadClassesFrequency, 1);
+   }
+ 
    SHENANDOAH_ERGO_ENABLE_FLAG(ExplicitGCInvokesConcurrent);
    SHENANDOAH_ERGO_ENABLE_FLAG(ShenandoahImplicitGCInvokesConcurrent);
  
    // Final configuration checks
    SHENANDOAH_CHECK_FLAG_SET(ShenandoahLoadRefBarrier);