Date: Fri, 8 Jul 2011 09:20:32 +0000 (UTC) From: Martin Matuska <mm@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs vdev_cache.c Message-ID: <201107080920.p689Ksjs050042@repoman.freebsd.org>
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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
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