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From: Poul-Henning Kamp <phk@FreeBSD.org>
Date: Sun, 29 Dec 2002 02:39:05 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/kern vfs_subr.c
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phk         2002/12/29 02:39:05 PST

  Modified files:
    sys/kern             vfs_subr.c 
  Log:
  Vnodes pull in 800-900 bytes these days, all things counted, so we need
  to treat desiredvnodes much more like a limit than as a vague concept.
  
  On a 2GB RAM machine where desired vnodes is 130k, we run out of
  kmem_map space when we hit about 190k vnodes.
  
  If we wake up the vnode washer in getnewvnode(), sleep until it is done,
  so that it has a chance to offer us a washed vnode.  If we don't sleep
  here we'll just race ahead and allocate yet a vnode which will never
  get freed.
  
  In the vnodewasher, instead of doing 10 vnodes per mountpoint per
  rotation, do 10% of the vnodes distributed evenly across the
  mountpoints.
  
  Revision  Changes    Path
  1.424     +15 -5     src/sys/kern/vfs_subr.c

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