VHPT_SIZE

   (Integrity servers only) VHPT_SIZE is the number of kilobytes to
   allocate for the virtual hash page table (VHPT) on each CPU in
   the system:

   o  0 indicates that no VHPT is allocated.

   o  1 indicates that OpenVMS is to choose a default size that is
      appropriate for your system configuration.

   If a VHPT is created, the smallest size is 32KB. The VHPT_SIZE
   must be a power of 2 KB in size. If the number specified is not
   a power of 2, OpenVMS chooses a VHPT size to use for your system
   that is close to the number specified.

   If insufficient memory is available during system startup,
   OpenVMS might choose a smaller size for the VHPT of each CPU.

   A summary of possible values for VHPT_SIZE is in the following
   table:

   Value Description

   0     Do not create a VHPT on each CPU.
   1     (default) OpenVMS chooses a VHPT of an appropriate size for
         each CPU.
   n     Create a VHPT of nKB for each CPU, where n is a power of
         2 that is 32 or greater. (The maximum value, however, is
         platform-dependent.)