From: Wolfgang Denk <wd@denx.de>
To: CoolCold <coolthecold@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Optimize RAID0 for max IOPS?
Date: Mon, 24 Jan 2011 21:43:31 +0100 [thread overview]
Message-ID: <20110124204331.481AEB187@gemini.denx.de> (raw)
In-Reply-To: <AANLkTikx4g99-Cf_09kEGfF2mmf4Dnuh2A5gTrtKweDy@mail.gmail.com>
Dear CoolCold,
In message <AANLkTikx4g99-Cf_09kEGfF2mmf4Dnuh2A5gTrtKweDy@mail.gmail.com> you wrote:
>
> > So can anybody help answering these questions:
> >
> > - are there any special options when creating the RAID0 to make it
> > perform faster for such a use case?
> > - are there other tunables, any special MD / LVM / file system /
> > read ahead / buffer cache / ... parameters to look for?
> XFS is known for it's slow speed on metadata operations like updating
> file attributes/removing files..but things gonna change after 2.6.35
> where delaylog is used. Citating Dave Chinner :
> < dchinner> Indeed, the biggest concurrency limitation has
> traditionally been the transaction commit/journalling code, but that's
> a lot more scalable now with delayed logging....
>
> So, you may need to benchmark fs part.
Thanks a lot - much appreciated. The first reply that actually was on
topic...
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
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next prev parent reply other threads:[~2011-01-24 20:43 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-18 21:01 Optimize RAID0 for max IOPS? Wolfgang Denk
2011-01-18 22:18 ` Roberto Spadim
2011-01-19 7:04 ` Wolfgang Denk
2011-01-18 23:15 ` Stefan /*St0fF*/ Hübner
2011-01-19 0:05 ` Roberto Spadim
2011-01-19 7:11 ` Wolfgang Denk
2011-01-19 8:18 ` Stefan /*St0fF*/ Hübner
2011-01-19 8:29 ` Jaap Crezee
2011-01-19 9:32 ` Jan Kasprzak
2011-01-19 7:10 ` Wolfgang Denk
2011-01-19 19:21 ` Wolfgang Denk
2011-01-19 19:50 ` Roberto Spadim
2011-01-19 22:36 ` Stefan /*St0fF*/ Hübner
2011-01-19 23:09 ` Roberto Spadim
2011-01-19 23:18 ` Roberto Spadim
2011-01-20 2:48 ` Keld Jørn Simonsen
2011-01-20 3:53 ` Roberto Spadim
2011-01-21 19:34 ` Wolfgang Denk
2011-01-21 20:03 ` Roberto Spadim
2011-01-21 20:04 ` Roberto Spadim
2011-01-24 14:40 ` CoolCold
2011-01-24 15:25 ` Justin Piszcz
2011-01-24 20:48 ` Wolfgang Denk
2011-01-24 21:57 ` Wolfgang Denk
2011-01-24 23:03 ` Dave Chinner
2011-01-25 7:39 ` Emmanuel Florac
2011-01-25 8:36 ` Dave Chinner
2011-01-25 12:45 ` Wolfgang Denk
2011-01-25 12:51 ` Emmanuel Florac
2011-01-24 20:43 ` Wolfgang Denk [this message]
2011-01-25 17:10 ` Christoph Hellwig
2011-01-25 18:41 ` Wolfgang Denk
2011-01-25 21:35 ` Christoph Hellwig
2011-01-26 7:16 ` Wolfgang Denk
2011-01-26 8:32 ` Stan Hoeppner
2011-01-26 8:42 ` Wolfgang Denk
2011-01-26 9:38 ` Christoph Hellwig
2011-01-26 9:41 ` CoolCold
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