RE: [Xen-users] Performance of WinXP after xen tools installed isterrible

["Dustin Henning" <Dustin.Henning@xxxxxxxxxxx>]

Joshua,
        As you are using Citrix Xen, not Xen.org Xen, while the suggested
changes may help, it is probably going to be necessary to get support from
Citrix on your issue.

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Itamar -
IspBrasil
Sent: Saturday, November 01, 2008 07:57
To: James Harper
Cc: xen-users@xxxxxxxxxxxxxxxxxxx; Joshua Pincus
Subject: Re: [Xen-users] Performance of WinXP after xen tools installed
isterrible

try with only one VCPU

On 11/1/2008 7:46 AM, James Harper wrote:
>> Hi,
>>
>> The performance of Windows XP is dreadful.  Absolutely dreadful.
>> There are only two VMs on the machine, dom0 and domU.  The system
>> supports the Windows XP HVM domain through the good offices of
>> the underlying dual-core AMD cpu with AMD-V technology.
>>
>> The system spends a huge amount of time running rundll32.exe.
>> If I kill the executable, it speeds up a bit.  The performance
>> problem has been there since the beginning, and I've scanned
>> for viruses.  There are none to be found.
>>
>> I've allocated 2GIG for the domain and 2 VCPUs.  Performance
>> is so bad as to make the domain almost unusable for many
>> tasks.  Deleting files, for some reason, takes forever.
>>
>> Are there obvious things for which I can check or set?
>> I'm using the latest Citrix distro and I've installed the
>> xen-tools.iso tools.  The drivers running in the domain are
>> Hypervisor-aware.
>>
>>      
>
> Have you tried a complete reinstall of the DomU from scratch with no
> extra drivers or anything?
>
> Is it XP sp2? Prior to sp2 I have seen some pretty poor performance of
> XP.
>
> What does 'xm dmesg' say?
>
> What are your underlying disks in dom0?
>
> It would probably be useful to post your DomU config file to the list.
>
> James
>
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>
>    



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