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RE: [Xen-users] Getting Windows 2003 to run in multiple cores ???

To: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Getting Windows 2003 to run in multiple cores ???
From: "Madhu Venugopal (vmadhu)" <vmadhu@xxxxxxxxx>
Date: Tue, 4 Aug 2009 00:23:18 -0700
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Thread-topic: [Xen-users] Getting Windows 2003 to run in multiple cores ???
BTW, I noticed that when I use "xm new", the VCPUs are set as 4 as
expected...

[root@localhost images]# xm new -f win1.cfg

[root@localhost images]# xm list
Name                                        ID   Mem VCPUs      State
Time(s)
Domain-0                                     0  5503     1     r-----
4129.3
win1                                            2048     4
0.0

But as soon as I "xm start win1", the VCPUs go back to 1.

[root@localhost images]# xm list
Name                                        ID   Mem VCPUs      State
Time(s)
Domain-0                                     0  5503     1     r-----
4170.8
win1                                        54  2048     1     r-----
4.5

Thanks,
-Madhu

> -----Original Message-----
> From: Madhu Venugopal (vmadhu)
> Sent: Monday, August 03, 2009 11:45 PM
> To: 'James Harper'; xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-users] Getting Windows 2003 to run in multiple cores
> ???
> 
> Hi James,
> 
> Thanks for the response.
> Unfortunately, "xm start" is not helping me either.
> 
> Should I reboot dom0 to get this working ?
> I would like to keep it the last option to try as am facing
> other issues immediately after the dom0 reboot.
> 
> Any other tricks to get multi-core working with Windows ?
> 
> BTW, I could not find "xe" command in my XEN installation.
> Even after installing the "xe-cli" rpm file, it is failing
> Consistently with the error message :
> 
> "Error: Connection refused (calling connect )"
> 
> Thanks,
> -Madhu
> 
> > -----Original Message-----
> > From: James Harper [mailto:james.harper@xxxxxxxxxxxxxxxx]
> > Sent: Monday, August 03, 2009 4:40 PM
> > To: Madhu Venugopal (vmadhu); xen-users@xxxxxxxxxxxxxxxxxxx
> > Subject: RE: [Xen-users] Getting Windows 2003 to run in multiple
> cores
> > ???
> >
> > > Hi,
> > >
> > > Installed Windows 2003 on XEN successfully (domain name : win1).
> > > I could not get it running in multiple cores though (tried
> vcpus=4).
> > > Windows taskmanager shows only 1 CPU always :-(.
> > >
> >
> > This may not be your problem, but one thing that caught me out early
> on
> > is that if you make a change to the config file and then do a 'xm
> > reboot' (or just do shutdown->restart in windows), the change isn't
> > picked up - it runs with the old config. You need to shut down the
> DomU
> > and then 'xm start' it.
> >
> > Another thing, on the first startup after changing from vcpus=1 to
> > vcpus=2 (or more), Windows needs to install the SMP HAL so it will
> say
> > something like "your hardware has changed and you need to reboot for
> > the
> > change to take effect".
> >
> > James

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