Re: Low perf with smp

Sorry for time to answer, here is result in both  case (with/withou SMP) 
with freebsd 4.11 :

kern.timecounter.method: 0
kern.timecounter.hardware: i8254


If you want I can do new installation with freebsd 6.0

Thanks,

Eric.




----- Original Message ----- 
From: "Mark Kirkwood" <[email protected]>
To: "Petri Helenius" <[email protected]>
Cc: "Eric" <[email protected]>; <[email protected]>; "Lucas Holt" 
<[email protected]>
Sent: Sunday, April 02, 2006 1:34 AM
Subject: Re: Low perf with smp


> Petri Helenius wrote:
>> Mark Kirkwood wrote:
>>
>>>
>>> As I understand it, when you activate SMP a more accurate, but slower 
>>> timecounter is chosen (typically 'i8254' instead of 'TSC' on intel HW).
>>
>>
>> ACPI-fast should be the default with SMP. It's significantly faster than 
>> i8254
>>
>
> Yeah - if his Dell has ACPI enabled. However, ACPI-fast is still slower 
> than say TSC.
>
> Eric, do you want to show us the output of
>
> $ sysctl kern.timecounter
>
> with and without SMP?
>
> Cheers
>
> Mark
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