[Xen-users] Too slow for Windows on HVM Xen

[Kyeto <kyeto@xxxxxxx>]

Hello

I have a real problem with the performance of my Windows XP Pro on HVM
I'm using Debian Lenny with Xen 3.2 and the kernel 2.6.26-2-xen-amd64

The main problem is IO Disk.
A test show that i have no more 6MB/s on a copy ...

However i have a Dual Xeon 5520 with 12Go DDR3 ECC and 6x1To SAS RAID5

I have setup XP directly on a physical drive but it's the same thing. Look
my config :

import os, re
arch = os.uname()[4]
shadow_memory = 8
kernel = '/usr/lib/xen-default/boot/hvmloader'
builder='hvm'
memory = '4096'
name = 'winxp'
disk = [ 'phy:/dev/sdb1,ioemu:hda,w', 'file:/root/xp.iso,ioemu:hdc:cdrom,r'
]
vif = [ 'type=ioemu, bridge=eth0' ]
device_model = '/usr/lib64/xen-default/bin/qemu-dm'
#memmap = '/usr/lib/xen/boot/mem-map.sxp'
vcpus=2
boot='c'
usbdevice='tablet'
sdl=0
vnc=1
vncviewer=1
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
acpi = 1
apic = 1
keymap = 'fr'
guest_os_type='windows'
serial='pty'

The Xen GPL Driver is setup.

I don't found solution on Google to resolv this problem.
I have the same problem on several different server.

Thanks for your help

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