On Sat, 2006-02-04 at 20:45 -0500, Albert Cahalan wrote:
> You clearly haven't been paying attention. Lots of computers vary the
> clock rate. They do this several ways.
I certainly have been paying attention. Most of these problems are
theoretical. In practice the only commonly used hardware where the TSC
is so unreliable as to be unusable are dual core Athlons.
Please check the jackit-devel (this app has tight RT constraints and
used to use the TSC directly for timing so problems show up quickly)
list for details - we have seen zero bug reports due to CPU frequency
scaling issues, and TONS related to the Athlon X2.
Lee
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