src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp

rev 7746 : 8058354: SPECjvm2008-Derby -2.7% performance regression on Solaris-X64 starting with 9-b29
Summary: Allow partial use of large pages for auxiliary data structures in G1.
Reviewed-by:

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, 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.

@@ -347,10 +347,16 @@
 
   // If the HR printer is active, dump the state of the regions in the
   // heap after a compaction.
   void print_hrm_post_compaction();
 
+  // Create a memory mapper for auxiliary data structures of the given size and
+  // translation factor.
+  static G1RegionToSpaceMapper* create_aux_memory_mapper(const char* description,
+                                                         size_t size,
+                                                         size_t translation_factor);
+
   double verify(bool guard, const char* msg);
   void verify_before_gc();
   void verify_after_gc();
 
   void log_gc_header();