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

[Kevin McKeon <kevin.w.mckeon@xxxxxxxxx>]

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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