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Re: [Xen-devel] Xen guest performance as a streaming server

To: Pasi Kärkkäinen <pasik@xxxxxx>, "Mr. Teo En Ming \(Zhang Enming\)" <space.time.universe@xxxxxxxxx>

From: Fasiha Ashraf <feehapk@xxxxxxxxxxx>

Date: Mon, 2 Nov 2009 16:26:42 +0530 (IST)

Cc: xen <xen-devel@xxxxxxxxxxxxxxxxxxx>, space.time.universe@xxxxxxxxx

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List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Have you tested its network performance?

Regards,
Fasiha Ashraf

--- On Mon, 2/11/09, Mr. Teo En Ming (Zhang Enming) <space.time.universe@xxxxxxxxx> wrote:

From: Mr. Teo En Ming (Zhang Enming) <space.time.universe@xxxxxxxxx>
Subject: Re: [Xen-devel] Xen guest performance as a streaming server
To: "Pasi Kärkkäinen" <pasik@xxxxxx>
Cc: "Fasiha Ashraf" <feehapk@xxxxxxxxxxx>, "xen" <xen-devel@xxxxxxxxxxxxxxxxxxx>, space.time.universe@xxxxxxxxx
Date: Monday, 2 November, 2009, 3:46 PM

Yes, get the latest pv-ops dom0 kernel 2.6.31.5. I have just installed it.

I think FC8 Xen is not based on pv-ops but on conventional Xen linux 2.6.18 forward ported.

--
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering)
Alma Maters:
(1) Singapore Polytechnic
(2) National University of Singapore
My Primary Blog: http://teo-en-ming-aka-zhang-enming.blogspot.com
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Email: space.time.universe@xxxxxxxxx
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On Mon, Nov 2, 2009 at 6:41 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:

On Mon, Nov 02, 2009 at 02:36:27PM +0530, Fasiha Ashraf wrote:
> Hi,
> I am using xen3.4.1 with pv kernel 2.6.31.4 and testing my xen
> guest performance as a streaming media server and the other as web server.
> the trends are same for both of them.
> (1)When i tried to access media files from an internel guest, streaming
> looks very poor.
> (2)Then incase of accessing them from an externel guest its again poor but
> just a little bit better than before.
> (3)Incase of accessing them from host of the same machine it results good.
> But i have not such issues with my previouse set up on FC8. Why the guests
> acts like this?
>

Are you running the latest pv_ops dom0 kernel (2.6.31.5) ?
There was a network performance related bugfix committed a couple of days ago..

-- Pasi

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