From: Richard Scobie <richard@sauce.co.nz>
To: Linux RAID Mailing List <linux-raid@vger.kernel.org>
Subject: Re: LVM performance
Date: Mon, 10 Mar 2008 13:32:30 +1300 [thread overview]
Message-ID: <47D4819E.5010807@sauce.co.nz> (raw)
In-Reply-To: <47D47264.4070404@student.tuwien.ac.at>
Oliver Martin wrote:
> Michael Guntsche schrieb:
> whenever possible. But if the fs starts 64KB into a 128KB stripe, every
> 128KB write will cause two RMW cycles.
> At least, that's how I understand it. Maybe there's something else
> involved and it really doesn't make a difference?
As I understand it, XFS is smart enough to work with md RAID and
automagically set the correct swidth and sunit sizes to suit the array.
Regards,
Richard
next prev parent reply other threads:[~2008-03-10 0:32 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-17 3:58 RAID5 to RAID6 reshape? Beolach
2008-02-17 11:50 ` Peter Grandi
2008-02-17 14:45 ` Conway S. Smith
2008-02-18 5:26 ` Janek Kozicki
2008-02-18 12:38 ` Beolach
2008-02-18 14:42 ` Janek Kozicki
2008-02-19 19:41 ` LVM performance (was: Re: RAID5 to RAID6 reshape?) Oliver Martin
2008-02-19 19:52 ` Jon Nelson
2008-02-19 20:00 ` Iustin Pop
2008-02-19 23:19 ` LVM performance Peter Rabbitson
2008-02-20 12:19 ` LVM performance (was: Re: RAID5 to RAID6 reshape?) Peter Grandi
2008-02-22 13:41 ` LVM performance Oliver Martin
2008-03-07 8:14 ` Peter Grandi
2008-03-09 19:56 ` Oliver Martin
2008-03-09 21:13 ` Michael Guntsche
2008-03-09 23:27 ` Oliver Martin
2008-03-09 23:53 ` Michael Guntsche
2008-03-10 8:54 ` Oliver Martin
2008-03-10 21:04 ` Peter Grandi
2008-03-12 14:03 ` Michael Guntsche
2008-03-12 19:54 ` Peter Grandi
2008-03-12 20:11 ` Guntsche Michael
2008-03-10 0:32 ` Richard Scobie [this message]
2008-03-10 0:53 ` Michael Guntsche
2008-03-10 0:59 ` Richard Scobie
2008-03-10 1:21 ` Michael Guntsche
2008-02-18 19:05 ` RAID5 to RAID6 reshape? Peter Grandi
2008-02-20 6:39 ` Alexander Kühn
2008-02-22 8:13 ` Peter Grandi
2008-02-23 20:40 ` Nagilum
2008-02-25 0:10 ` Peter Grandi
2008-02-25 16:31 ` Nagilum
2008-02-17 13:31 ` Janek Kozicki
2008-02-17 16:18 ` Conway S. Smith
2008-02-18 3:48 ` Neil Brown
2008-02-17 22:40 ` Mark Hahn
2008-02-17 23:54 ` Janek Kozicki
2008-02-18 12:46 ` Andre Noll
2008-02-18 18:23 ` Mark Hahn
2008-02-17 14:06 ` Janek Kozicki
2008-02-17 23:54 ` cat
2008-02-18 3:43 ` Neil Brown
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