[Xen-users] Better a Debian Xen PV or a Debian Hyper-V VM?

[Heli <helicoterus-elih@xxxxxxxx>]

I installed two Debian web server which run a phpbb3 forum. One stays on
a Xen paravirtualized domU (512 MB of ram, 1 vcpu, disc on a raw file
file:/home/vale/debian.img,hda,w) on OpenSuse 11.0 and one run on a
hyper-v virtual machine (512 MB 1 cpu) build on Windows Server 2008 R2.
The performances on PV are very poor than hyper-v.
ab -n 3000 -k -c50 http://site.lan/phpBB3/
returns 13,22 req/sec on PV domU and 38,37 req/sec on hyper-v.

Why?

I installed O.S. guest as a HVM domain, then I installed linux-xen-image
files and I use them for vmlinuz and initrd. I also installed libc6-xen.

Xen PV config file:

name='pv'
ramdisk='/home/vale/initrd.img-2.6.18-6-xen-686'
kernel='/home/vale/vmlinuz-2.6.18-6-xen-686'
bootloader=''
vif=['mac=00:16:3e:33:37:4f, bridge=xenbr0']
vcpus=1
memory=512
disk=['file:/home/vale/pv.img,hda,w']
on_reboot='restart'
on_crash='restart'
extra=''
root='/dev/hda1'
platform='xen'

Thanks

Chiacchiera con i tuoi amici in tempo reale! 
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