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xen-users
RE: [Xen-users] Poor performance running WinXP x86 hvm underCentOS5.1x64
Joseph L. Casale wrote:
> > I found on some CPUs an ACPI based HVM chews up a lot of CPU time versuses
> > an APIC HVM, so in Windows I would change the computer type in device
> > manager to "Standard PC" and disable acpi in the domain config.
> >
> > -Ross
>
> Wow,
> Night and day! Thanks for that tip. So how does one install
> Vista or more importantly W2008 Server on Xen and maintain
> usable performance?
If you have a more recent motherboard/cpu combo then ACPI should
perform better, otherwise I guess you suck it up ;-)
It all depends on how good of an implementation your BIOS does
of ACPI really. I don't know which BIOSs work well and which
don't, maybe somebody else on the list has some input on this,
or a link to a site that lists the poor performing ACPI BIOSs.
-Ross
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