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From: Matt Dillon <dillon@FreeBSD.org>
Date: Sun, 19 Aug 2001 17:41:13 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/boot/common loader.8 src/sys/conf options
         src/sys/i386/i386 machdep.c src/sys/i386/include param.h
         src/sys/kern subr_param.c src/sys/sys buf.h src/sys/vm
         swap_pager.c
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dillon      2001/08/19 17:41:13 PDT

  Modified files:
    sys/boot/common      loader.8 
    sys/conf             options 
    sys/i386/i386        machdep.c 
    sys/i386/include     param.h 
    sys/kern             subr_param.c 
    sys/sys              buf.h 
    sys/vm               swap_pager.c 
  Log:
  Limit the amount of KVM reserved for the buffer cache and for swap-meta
  information.  The default limits only effect machines with > 1GB of ram
  and can be overriden with two new kernel conf variables VM_SWZONE_SIZE_MAX
  and VM_BCACHE_SIZE_MAX, or with loader variables kern.maxswzone and
  kern.maxbcache.  This has the effect of leaving more KVM available for
  sizing NMBCLUSTERS and 'maxusers' and should avoid tripups where a sysad
  adds memory to a machine and then sees the kernel panic on boot due to
  running out of KVM.
  
  Also change the default swap-meta auto-sizing calculation to allocate half
  of what it was previously allocating.  The prior defaults were way too high.
  Note that we cannot afford to run out of swap-meta structures so we still
  stay somewhat conservative here.
  
  Revision  Changes    Path
  1.31      +28 -1     src/sys/boot/common/loader.8
  1.289     +3 -1      src/sys/conf/options
  1.470     +7 -2      src/sys/i386/i386/machdep.c
  1.60      +17 -1     src/sys/i386/include/param.h
  1.43      +7 -1      src/sys/kern/subr_param.c
  1.119     +3 -1      src/sys/sys/buf.h
  1.163     +6 -3      src/sys/vm/swap_pager.c


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