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From: John Baldwin <jhb@FreeBSD.org>
Date: Mon, 9 Mar 2009 19:04:53 +0000 (UTC)
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Subject: cvs commit: src/sys/kern vfs_cache.c
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jhb         2009-03-09 19:04:53 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             vfs_cache.c 
  Log:
  SVN rev 189593 on 2009-03-09 19:04:53Z by jhb
  
  Move the debug.hashstat sysctl tree under DIAGNOSTIC.  I measured the
  debug.hashstat.rawnchash sysctl in particular as taking 7 milliseconds on
  a 3GHz Intel Xeon (4x2) running 7.1.  It accounted for almost a quarter of
  the total runtime of 'sysctl -a'.  It also performs lots of copyout's while
  holding the namecache lock (this does not attempt to fix that).
  
  MFC after:      2 weeks
  
  Revision  Changes    Path
  1.137     +2 -0      src/sys/kern/vfs_cache.c