Pekka.Panula@sofor.fi
2008-Aug-14  14:27 UTC
[Xen-users] GPLPV with my windows 2003 is slow
Hi
Installed windows 2003 standard server (32-bit), Xen 3.2.1 (compiled 
myself), CentOS 5.2 64-bit as distro.
How come installing GPLPV drivers are making windows 2003 booting slower 
and making network slow? 
Boot speed is really good without PV-drivers and if i am using PV-drivers 
its starting really slow.
Without GPLPV eg. ping from my remote locations says: rtt min/avg/max/mdev 
= 18.219/18.884/19.970/0.588 ms
with GPLPV i am getting: rtt min/avg/max/mdev = 
20.121/75.353/156.815/32.631 ms
If i download from internet some file, i am getting more consistent 
network speed without GPLPV drivers and if using GPLPV i am getting wierd 
stops when downloading. 
here is my Xen domU config for this windows if it helps:
---------------------8<------------------------
import os, re
arch = os.uname()[4]
if re.search(''64'', arch):
    arch_libdir = ''lib64''
else:
    arch_libdir = ''lib''
device_model = ''/usr/'' + arch_libdir +
''/xen/bin/qemu-dm''
name = "w2003"
maxmem = 4095
memory = 2050
vcpus = 1
builder = "hvm"
kernel = "/usr/lib/xen/boot/hvmloader"
boot = "c"
pae = 1
acpi = 1
apic = 1
on_poweroff = "destroy"
on_reboot = "restart"
on_crash = "restart"
sdl = 0
vnc = 1
vncunused = 1
disk = [ "phy:/dev/mapper/Data-lv--xen--quest2--w2003--test,hda,w" ]
vif = [ "bridge=br1001" ]
serial = "pty"
---------------------8<------------------------
Terveisin/Regards,
   Pekka Panula, Net Servant Oy - A Sofor company
   pekka.panula@sofor.fi
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