Re: [Xen-devel] A clocksource question

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 03/17/2010 06:35 AM, Tobias Geiger wrote:
> i also compiled 2.6.32.9 from xen/stable , but so far i can't see much
> improvement.
>    
I'm not certain you got the relevent changeset; the "xen/stable" branch 
now has it, but I think I only updated it yesterday.  xen/stable is now 
2.6.32.10.
> Still many small hiccups in Dom0
> One time (i think after HVM DomU creation) i get:
> "hrtimer: interrupt took 4045137 ns" in Dom0 dmesg
>    
That's only 4ms.  Not great, but not too bad.

> I also upgraded to newest xen-unstable:
> xen_changeset          : Wed Mar 17 09:18:34 2010 +0000 21041:066c3eead6ec
>
>
> Could it be that the missing HPET is causing all this trouble? I just noticed
> that in "xm dmesg" :
>
> (XEN) CPUIDLE: disabled due to no HPET. Force enable with \047cpuidle\047.
>
> I don't bother really about CPUIDLE, but i should perhaps about HPET ?
> Is there a reason xen doesn't enable HPET? Motherboard is Intel DX58SO
>    
I don't think that will be relevent.

    J

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