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From: Martin Matuska <mm@FreeBSD.org>
Date: Fri, 8 Jul 2011 09:20:32 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
	vdev_cache.c
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mm          2011-07-08 09:20:32 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/cddl/contrib/opensolaris/uts/common/fs/zfs vdev_cache.c 
  Log:
  SVN rev 223861 on 2011-07-08 09:20:32Z by mm
  
  MFC r223622:
  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)
  
  Revision  Changes    Path
  1.4.2.4   +8 -1      src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_cache.c