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xen-users
RE: [Xen-users] Status of Xen-Powermanagement-Support
> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of
> Hannes Petschauer
> Sent: 15 September 2006 13:02
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] Status of Xen-Powermanagement-Support
>
> Hi!
>
> What is the current status of support for PowerNow! and Speedstep?
>
> As I remember there were rumors, that those techniques were just
> supported for dom0, meaning that all the guests would run
> slow if dom0
> idles.
>
> Is there already a solution for this implemented (in the
> unstable-tree),
> so that guests do also influence power-state?
> If so, does it also work with dualcore-cpus or is it better to stick
> with singl-core for now, if one wants to keep Powermanagement-capable?
I was talking to Keir about this at the Xen Summit last week, and the
conclusion was that it's still not done - the code is in Xen to support
writing the MSR's, but the code to understand the overall CPU-load has
to be written. Looking at Xentop and it's interfaces and combining that
with some existing code for deciding CPU speed should be a workable
solution.
--
Mats
>
> Thanks!
> Hannes
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>
>
>
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