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Re: [Xen-users] Slow IO Performance

To: Molle Bestefich <molle.bestefich@xxxxxxxxx>
Subject: Re: [Xen-users] Slow IO Performance
From: Anand <xen.mails@xxxxxxxxx>
Date: Tue, 17 Jan 2006 20:57:54 +0530
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On 1/17/06, Molle Bestefich <molle.bestefich@xxxxxxxxx> wrote:
Anand wrote:
>  Timing cached reads:   932 MB in  2.00 seconds = 466.00 MB/sec
>  Timing buffered disk reads:   68 MB in  3.07 seconds =  22.15 MB/sec

Your system seems a bit sluggish too, doesn't it?
I'm getting 55-60 MB/sec for buffered reads and 1600 for cached.

AFAIK, standard modern ATA disks should give you around 50 MB/sec read speed...

Yup. However i don't know what is actually wrong here. This is a standard seagate 20GB and the host kernel is the stock xen 3.0 stable kernel.

--

regards,

Anand
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