Re: [Xen-devel] [Xen-users] Re: Xen 4 TSC problems

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 23.10.12 at 17:34, Mauro <mrsanna1@xxxxxxxxx> wrote:
> On 23 October 2012 16:46, Mauro <mrsanna1@xxxxxxxxx> wrote:
>> On 23 October 2012 16:43, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>>>>>> On 23.10.12 at 16:07, Mauro <mrsanna1@xxxxxxxxx> wrote:
>>>> Today I had another clock jump so cpuidle=0 doesn't work.
>>>> I'll stay using clocksource= pit and cpuidle =0 for a while to see if
>>>> they together work.
>>>> But...how to know what C states the kernel uses?
>>>
>>> If "cpuidle=0" alone doesn't work, your problem is not C-state
>>> related, and you don't need to look up how much of it the native
>>> kernel uses.
>>
>> Ok, cpuidle=0 however is to be used because also clocksource=pit alone
>> doesn't work.
>> Now I'll use both params and see what happens.
> 
> Sorry for the noise, I'm not sure if it has been really a clock jump.
> Retry using only cpuidle=0 and then what Jan has suggested.
> If you want to see the C states tell me how to do.

Let's wait with that until you're settled on whether "cpuidle=0"
alone works.

Jan


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