Date: Thu, 24 Oct 2013 12:00:54 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Slawa Olhovchenkov" <slw@zxy.spb.ru> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r256956 - in head/sys: cam/ata cam/scsi cddl/contrib/opensolaris/uts/common/fs/zfs cddl/contrib/opensolaris/uts/common/fs/zfs/sys geom sys Message-ID: <062D17FCE7E44812812E249D864EF0DA@multiplay.co.uk> References: <201310230954.r9N9sxAZ011750@svn.freebsd.org> <20131024102118.GA59011@zxy.spb.ru>
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Not familiar with that option, but having a quick look in src it doesn't seem to be FS specific, seems to be handled by vfs. Can anyone confirm or deny this? ----- Original Message ----- From: "Slawa Olhovchenkov" <slw@zxy.spb.ru> > On Wed, Oct 23, 2013 at 09:54:59AM +0000, Steven Hartland wrote: > >> Author: smh >> Date: Wed Oct 23 09:54:58 2013 >> New Revision: 256956 >> URL: http://svnweb.freebsd.org/changeset/base/256956 >> >> Log: >> Improve ZFS N-way mirror read performance by using load and locality >> information. > > What about support F_READAHEAD in ZFS (with prefetch disabled by > CPU-intensive)? > ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.
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