K 10
svn:author
V 2
mm
K 8
svn:date
V 27
2011-06-28T06:32:35.740566Z
K 7
svn:log
V 245
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

END