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From: Martin Matuska <mm@FreeBSD.org>
Date: Tue, 28 Jun 2011 06:32:35 +0000 (UTC)
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Subject: cvs commit: src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
	vdev_cache.c
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mm          2011-06-28 06:32:35 UTC

  FreeBSD src repository

  Modified files:
    sys/cddl/contrib/opensolaris/uts/common/fs/zfs vdev_cache.c 
  Log:
  SVN rev 223622 on 2011-06-28 06:32:35Z by mm
  
  Disable vdev cache (readahead) by default.
  
  The vdev cache is very underutilized (hit ratio 30%-70%) and may consume
  excessive memory on systems with many vdevs.
  
  Illumos-gate revision:  13346
  
  Obtained from:  Illumos (Bug #175)
  MFC after:      1 week
  
  Revision  Changes    Path
  1.8       +8 -1      src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_cache.c