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Subject: Re: System time warping around real time problem - please help
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: george anzinger <george@mvista.com>
Cc: Fionn Behrens <fionn@unix-ag.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Wed, 2003-03-26 at 02:28, george anzinger wrote:
> Stands for Time Stamp Counter.  It is a special cpu register that 
> basically counts cpu cycles.  Some times (incorrectly me thinks) it is 
> affected by power management code which slows the cpu by changing the 
> cpu frequency.

Not incorrectly. It counts cpu clocks, its designed for profiling and
the like. There is no guarantee in any Intel MP standard that the clocks
are synched up.

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