Re: [Xen-users] Performance difference between a "partition image file" and a compressed file system

["Ferreira, N. L. (Nuno)" <n.l.ferreira@xxxxx>]

Hi Kevin

I do not have numbers, but the partition based option should have a 
better performance.
You can try yourself that, running a benchmark like bonnie++ inside your 
image file domU as well as inside your partition based domU.
Then, you will have numbers to share with us ;-)

Cheers,
N

Kevin McKeon wrote:
> Does anyone know how significant the performance hit is when using a 
> partition image file for the file system of a domU instance as opposed 
> to using a file system on a separate disk?
>  
> For example:
>  
> disk =['tap:aio:/xen/images/mydomU_partition.img,xvda1,w']
> *vs*
> disk =['phy:hda1,xvda1,w']
>  
> I realize the second config would be faster, but will the first one 
> work pretty well? Does anyone know of any performance papers written 
> on this subject?
>  
> Cheers,
> Kevin
> ------------------------------------------------------------------------
>
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--
==============================================
Nuno Ricardo Santos Loureiro da Silva Ferreira

NMR Spectroscopy Research Group
Bijvoet Center for Biomolecular Research
Utrecht University
Bloembergen gebouw
Padualaan 8, 3584 CH Utrecht
The Netherlands

P: +31.(0)30.253 9932
F: +31.(0)30.253 2652
E: n.l.ferreira@xxxxx
W: http://nmr.chem.uu.nl
==============================================


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