Re: [Xen-users] Slow windows network with gplpv driver.

[John McMonagle <johnm@xxxxxxxxxxx>]

On Tuesday 24 August 2010 06:38:03 pm James Harper wrote:
> > Have 4 xen servers with windows domains.
> > 2 work OK and 2 have xp domains with slow network performance.
> >
> > Doing most of the testing on a xen system that currently is not in
>
> production.
>
> > Running xen 4.0 with 2.6.32 kernel from lenny backports.
> > Have xp service pack3 freshly installed with no updates.
> > Installed gplpv gplpv_XP_0.11.0.213.msi
> >
> > hdtack gives 60mb/sec which is good
> > iperf gives ~15Mbits/sec
> > Without gplpv is about hte same.
> > A linux pv domu gives 686Mbits/sec
> > Shows it as using Xen Net Device Driver.
> >
> > Things that I have tried that did not help:
> > Disable Checksum Offload.
> > Disable Large Send Offload.
> > Disable Scatter/Gather.
> > Adding /patchptr  to boot.ini
> >
> > Any Ideas?
>
> What XP service pack are you running? Try turning off the firewall,
> including disabling the firewall service completely (eg services.msc and
> disable the actual service, don't just turn off the firewall)
>
____________________________________________
it's service pack3.
Killing the firewall helped a little but not much.

Is there any way to verify it's really using the paravirtualized driver?
This my configuration:
import os, re
arch_libdir = 'lib'
arch = os.uname()[4]
if os.uname()[0] == 'Linux' and re.search('64', arch):
    arch_libdir = 'lib64'
kernel = "/usr/lib/xen/boot/hvmloader"
builder='hvm'
device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'
memory=1024
name='fdlxp1'
vif=['type=paravirtualized, mac=00:16:3E:30:E1:32' ]
shadow_memory = 8
disk=['phy:/dev/xvg0/fdlxp1-disk,ioemu:hda,w','file:/extra/xp-sp3.iso,hdc:cdrom,r']
boot='d'
vnc=1
stdvga=0
usb=1
usbdevice="host:0ea0:2168"
usbdevice='tablet'
serial='pty'
vnclisten='0.0.0.0'
vncpasswd=''
on_xend_stop = 'shutdown'



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