Slow network speed of WinXP on Xen 3 HVM

[Kazushi (Jam) Marukawa <jam%pobox.com@localhost>]

Hi,

I'm using WinXP on the NetBSD Dom0 Xen3-HVM box.  It works
great.  Many thanks!

However, I have only one problem, its very slow network
speed.  Is there any tricks to make it fast?  Need to turn
off something?  Here is a rough picture of the network
speed.

               Speed
WinXP on Xen    70KB/s
NetBSD on Xen  250KB/s
native WinXP   300KB/s

Here are some more details:

    Xen configurations:
kernel = "/usr/pkg/lib/xen/boot/hvmloader"
builder='hvm'
memory = 512
name = "windows"
vif = [ 'mac=aa:00:00:50:02:f3, bridge=bridge0, type=ioemu' ]
device_model = '/usr/pkg/libexec/qemu-dm'
disk = [ 'file:/mnt/images/windows1.img,ioemu:hda,w' ]
boot='c'
vnc = 0
sdl = 1
usb=1
usbdevice='tablet'

    WinXP's network device
Realtek RTL8139 Family PCI Fast Ethernet NIC    - 5.398.613.2003

Regards,
-- Kazushi
Art is anything you can get away with.
                -- Marshall McLuhan