Slow performance on DomU

[Tiago Ribeiro <shasty%gmail.com@localhost>]

Hello, sorry for my english.

II have a very low performance on a NetBSD 6.0.1 and xen41 on my domU
FreeBSD 9.1 HVM.

Following testes performed:

On Dom0 (netbsd)

vmserver# rsync -avh --progress pkgsrc.tar /vms/
sending incremental file list
pkgsrc.tar
       2.78G 100%   78.41MB/s    0:00:33 (xfer#1, to-check=0/1)

sent 2.78G bytes  received 31 bytes  80.58M bytes/sec

On DomU (freebsd-hvm)

root@vm3-arquivos:/home/arquivos # rsync -avh --progress
ports.tar /home/ sending incremental file list
ports.tar
^C    90.21M   6%    4.55MB/s    0:04:36

the disk configuration of DomU:

disk = [ 'file:/vms/vm3-arquivos.img,hda,w' ]

What can i do to increase DomU performance?
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