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

To: "Fajar A. Nugraha" <fajar@xxxxxxxxx>, "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Getting Windows 2003 to run in multiple cores ???
From: "Madhu Venugopal (vmadhu)" <vmadhu@xxxxxxxxx>
Date: Tue, 4 Aug 2009 10:34:49 -0700
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Thread-topic: [Xen-users] Getting Windows 2003 to run in multiple cores ???
Tried messing with the dlls and ended up in blue screens...
Hence reinstalled 2003 again & this time with acpi=1 & apic=1 during the
installation and 
voila ... the multi-core is up and running. I set vcpu=4 & I do see 4
CPUs active.

Thanks for your support.


> -----Original Message-----
> From: Fajar A. Nugraha [mailto:fajar@xxxxxxxxx]
> Sent: Tuesday, August 04, 2009 2:15 AM
> To: Madhu Venugopal (vmadhu)
> Cc: Xen User-List
> Subject: Re: [Xen-users] Getting Windows 2003 to run in multiple cores
> ???
> On Tue, Aug 4, 2009 at 3:34 PM, Madhu Venugopal
> (vmadhu)<vmadhu@xxxxxxxxx> wrote:
> > My configuration file has explicit acpi=1 & apic=1.
> > But during installation I remember following a step which suggested
> > setting these values to 0.
> It was a suggested setting a long time. Last time I check though, it
> was the number of cpus that matter. One vcpu would yield better I/O
> throughput (whether the HAL is standard or ACPI) compared to two
> vcpus. This was with 0.9.x GPLPV series though, so current performance
> might have improved.
> > Maybe that is the root-cause of the issue
> > that am seeing now.
> >
> Somewhat. Standard PC HAL can only use 1 cpu/core. You need to change
> the HAL to ACPI first.
> > Will try to look for the info to switch to a different HAL.
> > In the meantime it would be great if you can point me to any
> > solid/proven
> > documentation to do the same .
> >
> I've been able to use multiple CPUs but not multiple core. Let us know
> if you got it working.
> --
> Fajar

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