Re: Counting CPU_CLK_UNHALTED on an idle system

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John,


On Fri, Jul 13, 2007 at 03:02:12PM +0200, John Sigler wrote:
> Stephane Eranian wrote:
> 
> > On PIII, CPU_CLK_UNHALTED is broken and keeps on counting while in HALT state.
> 
> Stephane,
> 
> Would you have a reference?
> 
No references, just my presonal experience. You'd have to ask Intel for a confirmation
or just file a bug report. I don't know where, unfortunately.

Note that the event works on Pentium M.

> There is no such mention in the latest Specification Update (May 2007).
> 
> http://developer.intel.com/design/intarch/specupdt/244453.htm
> 
> Regards.
> 
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-- 

-Stephane
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