src/share/vm/runtime/virtualspace.hpp

rev 7191 : 8058354: SPECjvm2008-Derby -2.7% performance regression on Solaris-X64 starting with 9-b29
Summary: Allow use of large pages for auxiliary data structures in G1. Clean up existing interfaces.
Reviewed-by: jmasa, pliden, stefank

*** 52,62 ****
    void protect_noaccess_prefix(const size_t size);
  
   public:
    // Constructor
    ReservedSpace();
!   ReservedSpace(size_t size);
    ReservedSpace(size_t size, size_t alignment, bool large,
                  char* requested_address = NULL,
                  const size_t noaccess_prefix = 0);
    ReservedSpace(size_t size, size_t alignment, bool large, bool executable);
  
--- 52,67 ----
    void protect_noaccess_prefix(const size_t size);
  
   public:
    // Constructor
    ReservedSpace();
!   // Initialize the reserved space with the given size. If prefer_large_pages is
!   // set, if the given size warrants use of large pages, try to force them by
!   // passing an alignment restriction further down. This may waste some space
!   // if the given size is not aligned, as the reservation will be aligned up
!   // to large page alignment.
!   ReservedSpace(size_t size, bool prefer_large_pages = false);
    ReservedSpace(size_t size, size_t alignment, bool large,
                  char* requested_address = NULL,
                  const size_t noaccess_prefix = 0);
    ReservedSpace(size_t size, size_t alignment, bool large, bool executable);