All of lore.kernel.org
 help / color / mirror / Atom feed
From: Emmanuel Florac <eflorac@intellique.com>
To: Wolfgang Denk <wd@denx.de>
Cc: Dave Chinner <david@fromorbit.com>,
	linux-raid@vger.kernel.org,
	Justin Piszcz <jpiszcz@lucidpixels.com>,
	xfs@oss.sgi.com
Subject: Re: Optimize RAID0 for max IOPS?
Date: Tue, 25 Jan 2011 13:51:23 +0100	[thread overview]
Message-ID: <20110125135123.0342f116@harpe.intellique.com> (raw)
In-Reply-To: <20110125124509.D76D6BB0B9@gemini.denx.de>

Le Tue, 25 Jan 2011 13:45:09 +0100
Wolfgang Denk <wd@denx.de> écrivait:

> > This is smelling like a case of barrier IOs on software raid on
> > cheap storage....  
> 
> Right. [Any way to avoid these, btw?] 

Easy enough, use the "nobarrier" mount option. 

-- 
------------------------------------------------------------------------
Emmanuel Florac     |   Direction technique
                    |   Intellique
                    |	<eflorac@intellique.com>
                    |   +33 1 78 94 84 02
------------------------------------------------------------------------
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

WARNING: multiple messages have this Message-ID (diff)
From: Emmanuel Florac <eflorac@intellique.com>
To: Wolfgang Denk <wd@denx.de>
Cc: linux-raid@vger.kernel.org, xfs@oss.sgi.com, Justin@oss.sgi.com,
	Piszcz <jpiszcz@lucidpixels.com>
Subject: Re: Optimize RAID0 for max IOPS?
Date: Tue, 25 Jan 2011 13:51:23 +0100	[thread overview]
Message-ID: <20110125135123.0342f116@harpe.intellique.com> (raw)
In-Reply-To: <20110125124509.D76D6BB0B9@gemini.denx.de>

Le Tue, 25 Jan 2011 13:45:09 +0100
Wolfgang Denk <wd@denx.de> écrivait:

> > This is smelling like a case of barrier IOs on software raid on
> > cheap storage....  
> 
> Right. [Any way to avoid these, btw?] 

Easy enough, use the "nobarrier" mount option. 

-- 
------------------------------------------------------------------------
Emmanuel Florac     |   Direction technique
                    |   Intellique
                    |	<eflorac@intellique.com>
                    |   +33 1 78 94 84 02
------------------------------------------------------------------------

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

  reply	other threads:[~2011-01-25 12:51 UTC|newest]

Thread overview: 46+ 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 15:25         ` Justin Piszcz
2011-01-24 20:48         ` Wolfgang Denk
2011-01-24 20:48           ` Wolfgang Denk
2011-01-24 21:57         ` Wolfgang Denk
2011-01-24 21:57           ` Wolfgang Denk
2011-01-24 23:03           ` Dave Chinner
2011-01-24 23:03             ` Dave Chinner
2011-01-25  7:39             ` Emmanuel Florac
2011-01-25  7:39               ` Emmanuel Florac
2011-01-25  8:36               ` Dave Chinner
2011-01-25  8:36                 ` Dave Chinner
2011-01-25 12:45                 ` Wolfgang Denk
2011-01-25 12:45                   ` Wolfgang Denk
2011-01-25 12:51                   ` Emmanuel Florac [this message]
2011-01-25 12:51                     ` Emmanuel Florac
2011-01-24 20:43       ` Wolfgang Denk
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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20110125135123.0342f116@harpe.intellique.com \
    --to=eflorac@intellique.com \
    --cc=david@fromorbit.com \
    --cc=jpiszcz@lucidpixels.com \
    --cc=linux-raid@vger.kernel.org \
    --cc=wd@denx.de \
    --cc=xfs@oss.sgi.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.