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Date: Sun, 30 Oct 2005 14:39:40 +0800
From: David Xu <davidxu@freebsd.org>
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Cc: Alexander Leidinger <Alexander@Leidinger.net>
Subject: Re: TSC instead of ACPI: powerd doesn't work anymore (to
	be	expected?)
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David O'Brien wrote:

>On Fri, Oct 28, 2005 at 03:34:57PM +0200, Alexander Leidinger wrote:
>  
>
>>I don't have the message at hand. I just had time to write the mail, but I
>>don't have my laptop with me to reproduce the message. But it's easy to
>>reproduce, just take a PC which is able to make use of powerd and switch to
>>using TSC as the timecounter.
>>    
>>
>
>What is the motivation to use the TSC as a timecounter?
> 
>  
>
TSC is faster than any others, on many systems, so-called ACPI-fast timer is
really a slow chip, at least far slower than reading from RAM, manufactories
just lie on this.

Regards,
David Xu