cvs commit: src/sys/amd64/amd64 pmap.c src/sys/i386/i386 pmap.c src/sys/vm uma_int.h

Alan Cox alc at FreeBSD.org
Sun Dec 21 17:01:33 PST 2003


alc         2003/12/21 17:01:32 PST

  FreeBSD src repository

  Modified files:
    sys/amd64/amd64      pmap.c 
    sys/i386/i386        pmap.c 
    sys/vm               uma_int.h 
  Log:
   - Significantly reduce the number of preallocated pv entries in
     pmap_init().  Such a large preallocation is unnecessary and wastes
     nearly eight megabytes of kernel virtual address space per gigabyte
     of managed physical memory.
   - Increase UMA_BOOT_PAGES by two.  This enables the removal of
     pmap_pv_allocf().  (Note: this function was only used during
     initialization, specifically, after pmap_init() but before
     pmap_init2().  During pmap_init2(), a new allocator is installed.)
  
  Revision  Changes    Path
  1.449     +1 -14     src/sys/amd64/amd64/pmap.c
  1.457     +1 -14     src/sys/i386/i386/pmap.c
  1.22      +1 -1      src/sys/vm/uma_int.h


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