From: Nauzad Sadry <nauzad@gmail.com>
To: "Jan Kundrát" <jan.kundrat@fzu.cz>
Cc: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>,
Steven Hand <Steven.Hand@cl.cam.ac.uk>,
xen-devel@lists.sourceforge.net
Subject: Re: File System Performance - 10x slower
Date: Sat, 15 Jan 2005 15:24:12 -0800 [thread overview]
Message-ID: <aa7b01ec050115152444c4a998@mail.gmail.com> (raw)
In-Reply-To: <41E4501B.2010200@fzu.cz>
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 Kundrát <jan.kundrat@fzu.cz> wrote:
> 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
>
> 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 support.
>
> -jkt
>
> --
> cd /local/pub && more beer > /dev/mouth
>
>
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next prev parent reply other threads:[~2005-01-15 23:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-11 19:11 File System Performance - 10x slower Ian Pratt
2005-01-11 19:31 ` Leigh Brown
2005-01-11 21:51 ` Nauzad Sadry
2005-01-11 22:15 ` Jan Kundrát
2005-01-15 23:24 ` Nauzad Sadry [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-01-11 18:30 Nauzad Sadry
2005-01-11 18:42 ` Steven Hand
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