carlopmart wrote:
>>>>>> b) Laptop's clock lost 5 min every 10-15 min ( i am running ntpd
>>>>>> withot
>>>>>> luck)
>>>>> Just one shot: is CPU frequency scaling enabled?
>>>>>
>>>> I have found CPU freq scaling: it isn't activated using rhel kernel ...
>>>>
>>> is the cpuspeed service disabled? This also does frequency scaling.
>>>
>>> run "/sbin/chkconfig --list cpuspeed" to check
>>
>> Frequency scaling simply doesn't work under a xen kernel[*], so we've
>> disabled it in the kernel-xen kernel config. cpuspeed won't do a
>> thing, there's no kernel freq scaling support. Don't have a clue
>> what's going on in the OP's situation though.
>>
>> [*] dom0 would have to handle freq scaling, but dom0 doesn't have a
>> clue what's going on in any domU, so if dom0 were idle and guests were
>> going full-bore, the processors would stay at their minimum speed.
>>
> ok, then how can i resolve this problem about clock under dom0 when i am
> running xen enabled kernel ??? and what about performance on dom0?? why
> all components are so so slowly?? For exmaple if i try to edit a file
> using vi editor and i try to move over it, spents 2-3 seconds to move
> cursor ... i don't understand. Do I need to pass some param to xen
> enabled kernel like noacpi or noapic to revert this situation???

Its certainly possible there's one that helps. This page could be worth
looking over:

https://fedoraproject.org/wiki/KernelCommonProblems

The section on clocksource could be particularly relevant. I'd also look
to see if there's a newer BIOS for your laptop available.

-- 
Jarod Wilson
[EMAIL PROTECTED]


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