[xenpreview-dev] Windows XP performance in Xen HVM

[Ky Srinivasan]

The only way to get good I/O performance is to have para-virtualized
drivers in fully virtualized (HVM) guests. We are working on this. Stay
tuned.

K. Y

>>> On Tue, Sep 19, 2006 at 11:14 AM, in message
<1346.192.168.1.53.1158678860.squirrel at 192.168.1.53>, "Don van der
Haghen"
<d.vanderhaghen at avgheijen.com> wrote: 
> Hello,
> 
> I am currently testing Xen 3.0 hardware virtualization on SLES 10.
> 
> In the first test phase, I am running Xen HVM on a Pentium D 930 (HP
> DC7600 (EJ656ET#ABH)).
> 
> I currently have Windows XP running in Xen without any real stability

> issues.
> However, the I/O performance (both network and HDD) is very poor
(even
> with the 9763- 0.03 changeset). Testing harddisk IO performance with
iozone
> gives me 60MB/s in Dom0 and 5MB/s on WXP DomU.
> Also, file transfers over the network from Linux to virtualized WXP
are
> taking twice as long as Linux to native WXP file transfers.
> 
> Linux (Knoppix 5.0.1) in full virtualization gives the same poor
> performance. So I can imagine NOES9 giving the same results in Xen.
> 
> The strange thing is that I can find little information about this
issue,
> although I haven't seen any good reports either.
> 
> Is this a known and unresolved issue?
> 
> If so, I am very interested to hear about if/how/when Novell is
planning
> to handle this?
> Will it be feasible at all to deploy Windows2000, NOES9 and Citrix on
one
> Xen in a production environment within 2006?
> Or is it heavily recommended to go with VMware on this for the time
being?
> 
> Thanks in advance for any answers anyone can provide me with
regarding
> this issue,
> with kind regards,
> 
> D. van der Haghen
> Network/System Administrator
> 
> 
> 
> Disclaimer
>
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