src/share/vm/gc/shared/plab.hpp

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -163,10 +163,14 @@
     _unused      = 0;
   }
 
   virtual void log_plab_allocation();
   virtual void log_sizing(size_t calculated, size_t net_desired);
+
+  // helper for adjust_desired_plab_sz().
+  virtual size_t compute_desired_plab_sz();
+
  public:
   PLABStats(const char* description, size_t desired_net_plab_sz_, unsigned wt) :
     _description(description),
     _allocated(0),
     _wasted(0),

@@ -195,11 +199,11 @@
   // Calculates plab size for current number of gc worker threads.
   size_t desired_plab_sz(uint no_of_gc_workers);
 
   // Updates the current desired PLAB size. Computes the new desired PLAB size with one gc worker thread,
   // updates _desired_plab_sz and clears sensor accumulators.
-  virtual void adjust_desired_plab_sz();
+  void adjust_desired_plab_sz();
 
   inline void add_allocated(size_t v);
 
   inline void add_unused(size_t v);