Re: [Xen-devel] A clocksource question

[Joanna Rutkowska <joanna@xxxxxxxxxxxxxxxxxxxxxx>]

On 03/11/2010 01:21 AM, Ian Pratt wrote:
>> The TSC delta is troubling... if you hadn't said you had turned
>> off all power management, I would have guessed a problem with
>> C-state management.  Maybe Xen is discovering some power management
>> capability not visible in BIOS settings?
> 
> Xen uses the architectural C state mechanism, bypassing ACPI.
> Use "max_cstate=0"
> 
Tried it (as an argument to xen) and it didn't seem to help.

BTW, how does the clocksource=jiffies work on a pvops kernel in Dom0?

j.

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