From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nauzad Sadry Subject: Re: File System Performance - 10x slower Date: Sat, 15 Jan 2005 15:24:12 -0800 Message-ID: References: <41E4501B.2010200@fzu.cz> Reply-To: Nauzad Sadry Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <41E4501B.2010200@fzu.cz> Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: =?ISO-8859-1?Q?Jan_Kundr=E1t?= Cc: Ian Pratt , Steven Hand , xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org Hello folks On turning DMA on in XEN kernel I managed to achieve file i/o performance comparable to baseline Thanks for your help Nauzad On Tue, 11 Jan 2005 23:15:55 +0100, Jan Kundr=E1t wrot= e: > Nauzad Sadry wrote: > > On using hdparm is found out that DMA is disabled by default in Xen > > (it was enabled on baseline) & I probably need to rebulid the kernel > > with this option turned on. > > > > If there are any other ways to turn on this option, please let me know >=20 > as Ian already said, you'll have to include your IDE chipset's driver > into kernel. It is located under Device drivers->ATA/ATAPI/MFM/RLL suppor= t. >=20 > -jkt >=20 > -- > cd /local/pub && more beer > /dev/mouth >=20 > ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt