From mboxrd@z Thu Jan 1 00:00:00 1970 From: Emmanuel Florac Subject: Re: Optimize RAID0 for max IOPS? Date: Tue, 25 Jan 2011 13:51:23 +0100 Message-ID: <20110125135123.0342f116@harpe.intellique.com> References: <20110118210112.D13A236C@gemini.denx.de> <4D361F26.3060507@stud.tu-ilmenau.de> <20110119192104.1FA92D30267@gemini.denx.de> <20110124215713.82D75B187@gemini.denx.de> <20110124230314.GA11040@dastard> <20110125083900.4dd65bf2@galadriel2.home> <20110125083643.GE28803@dastard> <20110125124509.D76D6BB0B9@gemini.denx.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20110125124509.D76D6BB0B9@gemini.denx.de> Sender: linux-raid-owner@vger.kernel.org To: Wolfgang Denk Cc: Dave Chinner , linux-raid@vger.kernel.org, Justin Piszcz , xfs@oss.sgi.com List-Id: linux-raid.ids Le Tue, 25 Jan 2011 13:45:09 +0100 Wolfgang Denk =E9crivait: > > This is smelling like a case of barrier IOs on software raid on > > cheap storage.... =20 >=20 > Right. [Any way to avoid these, btw?]=20 Easy enough, use the "nobarrier" mount option.=20 --=20 -----------------------------------------------------------------------= - Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 -----------------------------------------------------------------------= - -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id p0PCn6nR006971 for ; Tue, 25 Jan 2011 06:49:07 -0600 Received: from smtp4-g21.free.fr (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 90D521A1CFCF for ; Tue, 25 Jan 2011 04:51:27 -0800 (PST) Received: from smtp4-g21.free.fr (smtp4-g21.free.fr [212.27.42.4]) by cuda.sgi.com with ESMTP id 3LRn4qh9KIx93EEC for ; Tue, 25 Jan 2011 04:51:27 -0800 (PST) Date: Tue, 25 Jan 2011 13:51:23 +0100 From: Emmanuel Florac Subject: Re: Optimize RAID0 for max IOPS? Message-ID: <20110125135123.0342f116@harpe.intellique.com> In-Reply-To: <20110125124509.D76D6BB0B9@gemini.denx.de> References: <20110118210112.D13A236C@gemini.denx.de> <4D361F26.3060507@stud.tu-ilmenau.de> <20110119192104.1FA92D30267@gemini.denx.de> <20110124215713.82D75B187@gemini.denx.de> <20110124230314.GA11040@dastard> <20110125083900.4dd65bf2@galadriel2.home> <20110125083643.GE28803@dastard> <20110125124509.D76D6BB0B9@gemini.denx.de> Mime-Version: 1.0 List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Wolfgang Denk Cc: linux-raid@vger.kernel.org, xfs@oss.sgi.com, Justin@oss.sgi.com, Piszcz Le Tue, 25 Jan 2011 13:45:09 +0100 Wolfgang Denk =E9crivait: > > 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 | | +33 1 78 94 84 02 ------------------------------------------------------------------------ _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs