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 ****
  /*
!  * Copyright (c) 2001, 2014, 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.
--- 1,7 ----
  /*
!  * 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.
*** 347,356 ****
--- 347,362 ----
  
    // 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();